Updated on 2021/05/06

写真a

 
TOKUMARU Munetoshi
 
Organization
Nagoya University Institute for Space-Earth Environmental Research Division for Heliospheric Research Professor
Title
Professor
Contact information
メールアドレス

Degree 1

  1. Doctor (Science) ( 1986.3   Tohoku University ) 

Research Interests 4

  1. Low-frequency radio Astronomy

  2. Space weather

  3. Heliosphere

  4. Solar wind

Research Areas 2

  1. Natural Science / Space and planetary sciences  / Solar-Terrestrial Physics

  2. Natural Science / Astronomy  / Astronomy

Current Research Project and SDGs 1

  1. Study on Solar Wind

Research History 6

  1. Nagoya University   Professor

    2015.10

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    Country:Japan

  2. Nagoya University   Professor

    2008.9 - 2015.9

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    Country:Japan

  3. Nagoya University   Associate professor

    1995.4 - 2008.8

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    Country:Japan

  4. Communications Research Laboratory   Wakkanai Radio Observatory   Director in General

    1991.3 - 1995.3

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    Country:Japan

  5. Communications Research Laboratory   Hiraiso Space Environment Center   Chief Researcher

    1987.8 - 1991.3

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    Country:Japan

  6. Radio Research Laboratory   Kashima Branch   Researcher

    1985.8 - 1987.7

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    Country:Japan

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Education 2

  1. Tohoku University   Graduate School, Division of Natural Science

    1980.4 - 1985.3

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    Country: Japan

  2. Tohoku University   Faculty of Science

    1976.4 - 1980.3

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    Country: Japan

Professional Memberships 3

  1. 地球電磁気・地球惑星圏学会

  2. 日本天文学会

  3. American Geophysical Union

Awards 3

  1. SGEPSSフロンティア賞

    2018.11   地球電磁気・地球惑星圏学会   惑星間空間シンチレーションによる太陽風グローバル観測システムの整備

    小島正宜、徳丸宗利、藤木謙一(名古屋大学宇宙地球環境研究所太陽風グループ)

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  2. 田中館賞

    2011.5   日本地球電磁気・地球惑星圏学会  

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    Country:Japan

  3. JGG論文奨励賞

    1993  

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    Country:Japan

 

Papers 173

  1. A Peculiar ICME Event in August 2018 Observed with the Global Muon Detector Netwok (GMDN), Space Weather Reviewed International coauthorship

    Kihara, W., K. Munakata, C. Kato, R. Kataoka, A. Kadokura, S. Miyake, M. Kozai, T. Kuwabara, R. R. S. Mendonca, C. R. Braga, E. Echer, A. Dal Lago, M. Rockenbach, N. J. Schuch, H. K. Al Jassar, M. M. Sharma, M. Tokumaru, M. L. Duldig, J. E. Humble, P. Evenson, and I. Sabbah

    Space Weather   Vol. 19   page: e2020SW002531   2021.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1029/2020SW002531

  2. Validation of coronal mass ejection arrival-time forecasts by magnetohydrodynamic simulations based on interplanetary scintillation observations Reviewed

    Iwai, K., D. Shiota, M. Tokumaru, K. Fujiki, M. Den, and Y. Kubo

    Earth, Planets and Space   Vol. 73   page: 9   2021.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1186/s40623-020-01345-5

  3. Iterartive tomography: a key to providing time-dependent 3-D reconstructions of the inner heliosphere and the unification of space weather forecasting techniques Invited Reviewed International coauthorship

    Jackson, B.V., A. Buffington, L. Cota, D. Odstrcil. M.M. Bisi, R. Fallows, and M. Tokumaru

    Fronteiers fin Astronomy and Space Sciences   Vol. 7   page: 76   2020.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: doi:10.3389/fspas.2020.568429

  4. Sun-Heliosphere Observation-based Ionization Rates Model Reviewed

    Sokol Justyna M., McComas D. J., Bzowski M., Tokumaru M.

    ASTROPHYSICAL JOURNAL   Vol. 897 ( 2 )   2020.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/ab99a4

    Web of Science

  5. Radio Sounding Measurements of the Solar Corona Using Giant Pulses of the Crab Pulsar in 2018 Reviewed

    Tokumaru Munetoshi, Tawara Kaito, Takefuji Kazuhiro, Sekido Mamoru, Terasawa Toshio

    SOLAR PHYSICS   Vol. 295 ( 6 )   2020.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11207-020-01644-w

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  6. Solar Cycle of Imaging the Global Heliosphere: Interstellar Boundary Explorer (IBEX) Observations from 2009-2019 Reviewed International coauthorship

    McComas D. J., Bzowski M., Dayeh M. A., DeMajistre R., Funsten H. O., Janzen P. H., Kowalska-Leszczynska I, Kubiak M. A., Schwadron N. A., Sokol J. M., Szalay J. R., Tokumaru M., Zirnstein E. J.

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   Vol. 248 ( 2 )   2020.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4365/ab8dc2

    Web of Science

  7. Comparison of Toroidal Interplanetary Flux-rope Model Fitting with Different Boundary Pitch-angle Treatments Reviewed International coauthorship

    Nishimura N., Marubashi K., Tokumaru M.

    SOLAR PHYSICS   Vol. 295 ( 3 )   2020.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11207-020-01607-1

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  8. Analysis of Cosmic Rays' Atmospheric Effects and Their Relationships to Cutoff Rigidity and Zenith Angle Using Global Muon Detector Network Data Reviewed

    Mendonca R. R. S., Wang C., Braga C. R., Echer E., Dal Lago A., Costa J. E. R., Munakata K., Li H., Liu Z., Raulin J-P, Kuwabara T., Kozai M., Kato C., Rockenbach M., Schuch N. J., Al Jassar H. K., Sharma M. M., Tokumaru M., Duldig M. L., Humble J. E., Evenson P., Sabbah I

    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS   Vol. 124 ( 12 ) page: 9791 - 9813   2019.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1029/2019JA026651

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  9. Coordinated Interplanetary Scintillation Observations in Japan and Russia for Coronal Mass Ejection Events in Early September 2017 Reviewed International coauthorship

    Tokumaru Munetoshi, Fujiki Ken'ichi, Iwai Kazumasa, Tyul'bashev Sergey, Chashei Igor

    SOLAR PHYSICS   Vol. 294 ( 7 )   2019.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11207-019-1487-6

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  10. Temporal Evolution of the Latitude and Energy Dependence of the Energetic Neutral Atom Spectral Indices Measured by the Interstellar Boundary Explorer (IBEX) Over the First Nine Years Reviewed International coauthorship

    Desai M. I, Dayeh M. A., Allegrini F., McComas D. J., Funsten H., Heerikhuisen J., Fuselier S. A., Pogorelov N., Schwadron N. A., Zank G. P., Zirnstein E. J., Sokol J. M., Tokumaru M., Bzowski M., Kubiak M. A., Reisenfeld D. B.

    ASTROPHYSICAL JOURNAL   Vol. 875 ( 2 )   2019.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/ab0f37

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  11. Development of a coronal mass ejection arrival time forecasting system using interplanetary scintillation observations Reviewed

    Iwai Kazumasa, Shiota Daikou, Tokumaru Munetoshi, Fujiki Ken'ichi, Den Mitsue, Kubo Yuki

    EARTH PLANETS AND SPACE   Vol. 71   2019.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1186/s40623-019-1019-5

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  12. A Daily Determination of B-Z Using the Russell-McPherron Effect to Forecast Geomagnetic Activity

    Jackson B. V, Yu H-S, Buffington A., Hicks P. P., Tokumaru M., Fujiki K., Kim J., Yun J.

    SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS   Vol. 17 ( 4 ) page: 639 - 652   2019.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1029/2018SW002098

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  13. Interstellar Mapping and Acceleration Probe (IMAP): A New NASA Mission

    McComas D. J., Christian E. R., Schwadron N. A., Fox N., Westlake J., Allegrini F., Baker D. N., Biesecker D., Bzowski M., Clark G., Cohen C. M. S., Cohen I., Dayeh M. A., Decker R., de Nolfo G. A., Desai M. I., Ebert R. W., Elliott H. A., Fahr H., Frisch P. C., Funsten H. O., Fuselier S. A., Galli A., Galvin A. B., Giacalone J., Gkioulidou M., Guo F., Horanyi M., Isenberg P., Janzen P., Kistler L. M., Korreck K., Kubiak M. A., Kucharek H., Larsen B. A., Leske R. A., Lugaz N., Luhmann J., Matthaeus W., Mitchell D., Moebius E., Ogasawara K., Reisenfeld D. B., Richardson J. D., Russell C. T., Sokol J. M., Spence H. E., Skoug R., Sternovsky Z., Swaczyna P., Szalay J. R., Tokumaru M., Wiedenbeck M. E., Wurz P., Zank G. P., Zirnstein E. J.

    SPACE SCIENCE REVIEWS   Vol. 214 ( 8 )   2018.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11214-018-0550-1

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  14. A Peculiar ICME Event in August 2018 Observed With the Global Muon Detector Network

    Kihara W., Munakata K., Kato C., Kataoka R., Kadokura A., Miyake S., Kozai M., Kuwabara T., Tokumaru M., Mendonca R. R. S., Echer E., Dal Lago A., Rockenbach M., Schuch N. J., Bageston J. V, Braga C. R., Al Jassar H. K., Sharma M. M., Duldig M. L., Humble J. E., Evenson P., Sabbah I, Kota J.

    SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS   Vol. 19 ( 3 )   2021.3

  15. Comparison of Cylindrical Interplanetary Flux-Rope Model Fitting with Different Boundary Pitch-Angle Treatments

    Nishimura N., Marubashi K., Tokumaru M.

    SOLAR PHYSICS   Vol. 294 ( 4 )   2019.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11207-019-1435-5

    Web of Science

  16. Comparative Study of Microwave Polar Brightening, Coronal Holes, and Solar Wind over the Solar Poles

    Fujiki Ken'ichi, Shibasaki Kiyoto, Yashiro Seiji, Tokumaru Munetoshi, Iwai Kazumasa, Masuda Satoshi

    SOLAR PHYSICS   Vol. 294 ( 3 )   2019.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11207-019-1418-6

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  17. Interstellar Neutral Gas Species and Their Pickup Ions inside the Heliospheric Termination Shock. Ionization Rates for H, O, Ne, and He

    Sokol Justyna M., Bzowski Maciej, Tokumaru Munetoshi

    ASTROPHYSICAL JOURNAL   Vol. 872 ( 1 )   2019.2

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    DOI: 10.3847/1538-4357/aafdaf

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  18. Cosmic-Ray Short Burst Observed with the Global Muon Detector Network (GMDN) on 2015 June 22

    Munakata K., Kozai M., Evenson P., Kuwabara T., Kato C., Tokumaru M., Rockenbach M., Dal Lago A., de Mendonca R. R. S., Braga C. R., Schuch N. J., Al Jassar H. K., Sharma M. M., Duldig M. L., Humble J. E., Sabbah I., Kota J.

    ASTROPHYSICAL JOURNAL   Vol. 862 ( 2 )   2018.8

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    DOI: 10.3847/1538-4357/aacdfe

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  19. Measurement of the radial diffusion coefficient of galactic cosmic rays near the Earth by the GRAPES-3 experiment

    Kojima H., Arunbabu K. P., Dugad S. R., Gupta S. K., Hariharan B., Jagadeesan P., Jain A., Mohanty P. K., Rakshe P. S., Ramesh K., Rao B. S., Hayashi Y., Kawakami S., Nonaka T., Oshima A., Shibata S., Tanaka K., Tokumaru M.

    PHYSICAL REVIEW D   Vol. 98 ( 2 )   2018.7

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    DOI: 10.1103/PhysRevD.98.022004

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  20. Rarefaction of the Very Slow (< 350 km/s) Solar Wind in Cycle 24 Compared With Cycle 23

    Munetoshi Tokumaru, Tomoya Shimoyam, Ken'ichi Fujiki, and Kazuyuki Hakamada

    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS   Vol. 123 ( 4 ) page: 2520-2534   2018.4

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/2017JA025014

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  21. Interplanetary Scintillation with the Murchison Widefield Array I: a sub-arcsecond survey over 900 deg(2) at 79 and 158 MHz Reviewed

    Morgan J. S., Macquart J. -P., Ekers R., Chhetri R., Tokumaru M., Manoharan P. K., Tremblay S., Bisi M. M., Jackson B. V.

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   Vol. 473 ( 3 ) page: 2965-2983   2018.1

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    DOI: 10.1093/mnras/stx2284

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  22. Seven Years of Imaging the Global Heliosphere with IBEX Reviewed

    McComas D. J., Zirnstein E. J., Bzowski M., Dayeh M. A., Funsten H. O., Fuselier S. A., Janzen P. H., Kubiak M. A., Kucharek H., Mobius E., Reisenfeld D. B., Schwadron N. A., Sokol J. M., Szalay J. R., Tokumaru M.

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   Vol. 229 ( 2 )   2017.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4365/aa66d8

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  23. Relation Between Coronal Hole Areas and Solar Wind Speeds Derived from Interplanetary Scintillation Measurements Reviewed

    Tokumaru Munetoshi, Satonaka Daiki, Fujiki Ken'ichi, Hayashi Keiji, Hakamada Kazuyuki

    SOLAR PHYSICS   Vol. 292 ( 3 )   2017.3

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    DOI: 10.1007/s11207-017-1066-7

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  24. High-latitude Conic Current Sheets in the Solar Wind Reviewed

    Khabarova Olga V., Malova Helmi V., Kislov Roman A., Zelenyi Lev M., Obridko Vladimir N., Kharshiladze Alexander F., Tokumaru Munetoshi, Sokol Justyna M., Grzedzielski Stan, Fujiki Ken'ichi

    ASTROPHYSICAL JOURNAL   Vol. 836 ( 1 )   2017.2

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    DOI: 10.3847/1538-4357/836/1/108

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  25. THE TEMPERATURE EFFECT IN SECONDARY COSMIC RAYS (MUONS) OBSERVED AT THE GROUND: ANALYSIS OF THE GLOBAL MUON DETECTOR NETWORK DATA Reviewed

    R. R. S. de Mendonca, C. R. Braga, E. Echer, A. Dal Lago, K. Munakata, T. Kuwabara, M. Kozai, C. Kato, M. Rockenbach, N. J. Schuch, H. K. Al Jassar, M. M. Sharma, M. Tokumaru, M. L. Duldig, J. E. Humble, P. Evenson, and I. Sabbah

    Atrophysical Journal   Vol. 830   page: 88(25p)   2016

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    DOI: doi:10.3847/0004-637X/830/2/88

  26. MHD-IPS analysis of relationship among solar-wind density, temperature, and flow speed Reviewed

    Hayashi, K., M. Tokumaru, and K. Fujiki

    Journal of Geophysical Research   Vol. 121   page: 2016   2016

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    DOI: doi:10.1002/2016JA022750

  27. Long-term trend of solar coronal hole distribution from 1975 to 2014

    Fujiki, K., M. Tokumaru, K. Hayashi, and K. Hakamada

    Astrophysical Journal Letter   Vol. 827   page: L41   2016

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    DOI: doi:10.3847/2041-8205/827/2/L41

  28. A Prolonged Southward IMF-Bz Event of May 02--04, 1998: Solar, Interplanetary Causes and Geomagnetic Consequences Reviewed

    Susanta Kumar Bisoi,D. Chakrabarty, P. Janardhan, R.G. Rastogi, A. Yoshikawa, K. Fujiki, M. Tokumaru, and Y. Yan

    Journal of Geophysical Research   Vol. 121   page: 3882-3904   2016

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: doi:10.1002/2015JA022185

  29. Global Distribution of the Solar Wind and its Evolution during Cycles 22-24 Reviewed

    Tokumaru, M., K. Fujiki, M. Kojima, T. Iju, H. Nakano, D. Satonaka, T. Shimoyama, and K. Hakamada

    Proceedings of Solar Wind 14 (AIP Conference Proceedings Vol. 1720)     page: 030004   2016

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: doi:10.1063/1.4943827

  30. EXPLORATION OF SOLAR PHOTOSPHERIC MAGNETIC FIELD DATA SETS USING THE UCSD TOMOGRAPHY Reviewed

    Jackson, B. V., H.-S. Yu, A. Buffington, P. P. Hick, N. Nishimura, N. Nozaki, M. Tokumaru, K. Fujiki, and K. Hayashi

    Space Weather   Vol. 14 ( 12 ) page: 1107-1124   2016

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: DOI: 10.1002/2016SW001481

  31. Average features of the interplanetary shock observed with the Global Muon Detector Network Reviewed International coauthorship

    M. Kozai, K. Munakata, C. Kato, T. Kuwabara, M. Rockenbach, A. Dal Lago, J. Schuch, H. K. Al Jassar, M. M. Sharma, M. L. Duldig, J. E. Humble, J. W. Bieber, P. Evenson, I. Sabbah, and M. Tokumaru

    The 34th International Cosmic Ray Conference     page: 59   2016

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    Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.22323/1.236.0059

  32. AVERAGE SPATIAL DISTRIBUTION OF COSMIC RAYS BEHIND THE INTERPLANETARY SHOCK - GLOBAL MUON DETECTOR NETWORK OBSERVATIONS Reviewed

    M. Kozai, K. Munakata, C.Kato, T. Kuwabara, M. Rockenbach, A. Dal Lago, N. J. Schuch, C. R. Braga, R. R. S. Mendonca, H. K. Al Jassar, M. M. Sharma, M. L. Duldig, J. E. Humble, P. Evenson, I. Sabbah, and M. Tokumaru

    Astrophysical Journal   Vol. 825   page: 100   2016

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    DOI: doi:10.3847/0004-637X/825/2/100

  33. North-South Asymmetry in Global Distribution of the Solar Wind Speed During 1985-2013 Reviewed

    Tokumaru, M., K. Fujiki, and T. Iju

    Journal of Geophysical Research   Vol. 120   page: 3283-3296   2015.5

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: DOI:10.1002/2014JA020765

  34. 3D reconstruction of interplanetary scintillation (IPS) remote-sensing data: global solar wind boundaries for driving 3D-MHD models Reviewed

    Yu, H.-S., B.V. Jackson, P.P. Hick, A. Buffington, D. Odstrcil, C.C. Wu, J.A. Davies, M.M. Bisi, and M. Tokumaru

    Solar Physics   Vol. 290   2015

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: DOI 10.1007/s11207-015-0685-0

  35. Internal structure of a coronal mass ejection revealed by radio occultation observations using Akatsuki spacecraft

    Ando, H., D. Shiota, T. Imamura, M. Tokumaru, A. Asai, H. Isobe, M. Pazold, B. Hausler, and M. Nakamura

    Journal of Geophysical Research   Vol. 120   page: 5318-5328   2015

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    DOI: doi:10.1002/2015JA021076

  36. A Twenty Year Decline in Solar Photospheric Magnetic Fields: Inner-Heliosphere Signatures and Possible Implications? Reviewed

    P. Janardhan, Susanta Kumar Bisoi, S. Ananthakrishnan, M. Tokumaru, K. Fujiki, L. Jose, and R. Sridharan

    Journal of Geophysical Research   Vol. 120   page: 5306-5317   2015

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    DOI: doi:10.1002/2015JA021123

  37. Relationship Between Solar Wind Speed and Coronal Magnetic Field Properties Reviewed

    Fujiki, K., M. Tokumaru, T. Iju, K. Hakamada, and M. Kojima

    Solar Physics     2015

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: DOI 10.1007/s11207-015-0742-8

  38. Remote sensing of solar wind speeds using IPS at 140 and 327 MHz: MEXART and STEL Reviewed

    Mejia-Ambriz, J.C., B.V. Jackson, J.A. Gonzalez-Esparsa, A. Buffington, M. Tokumaru, E. Aguilar-Rodriguez

    Solar Physics   Vol. 290   2015

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: DOI 10.1007/s11207-015-0694-z

  39. A Determination of the North-South Heliospheric Magnetic Field Component from Inner Corona Closed-Loop Propagation Reviewed

    Jackson, B.V., P.P. Hick, A. Buffington, H.-S. Yu, M. M. Bisi, M. Tokumaru, and X. Zhao

    Astrophysical Journal Letters   Vol. 803   page: L1   2015

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    DOI: doi:10.1088/2041-8205/803/1/L1

  40. Plasma distribution of Comet ISON (C/2012 S1) observed using the radio scintillation method Reviewed

    Iju, T., S. Abe, M. Tokumaru, and K. Fujiki

    Icarus   Vol. 252   page: 301-310   2015

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    DOI: doi:10.1016/j.icarus.2015.02.007

  41. THE UCSD KINEMATIC IPS SOLAR WIND BOUNDARY AND ITS USE IN THE ENLIL 3D-MHD PREDICTION MODEL Reviewed

    Jackson, B.V, D. Odstrcil, H.-S. Yu, P.P. Hick, A. Buffington, J.C. Mejia-Ambriz, J. Kim, S. Hong, Y. Kim, J. Han and M. Tokumaru

    Space Weather   Vol. 13   page: 104-115   2015

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: doi:10.1002/2014SW001130

  42. Comparison of solar wind speeds using wavelet transform and Fourier analysis in IPS data Reviewed

    E. Aguilar-Rodriguez, J.C. Mejia-Ambriz, B.V. Jackson, A. Buffington, E. Romero-Hernandez, J.A. Gonzalez-Esparza, M. Rodriguez-Martinez, P. Hick, M. Tokumaru, and P.K. Manoharan

    Solar Physics   Vol. 290   page: 2507-2015   2015

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: DOI 10.1007/s11207-015-0758-0

  43. Reconstruction of heliolatitudinal structure of the solar wind proton speed and density Reviewed

    Justyna M. Sokol, Pawel Swaczyna, Maciej Bzowski, and Munetoshi Tokumaru

    Solar Physics   Vol. 290   page: 2589-2615   2015

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: DOI 10.1007/s11207-015-0800-2

  44. Internal structure of a coronal mass ejection revealed by radio occultation observations using Akatsuki spacecraft Reviewed

    Ando, H., D. Shiota, T. Imamura, M. Tokumaru, A. Asai, H. Isobe, M. Pazold, B. Hausler, and M. Nakamura

    Journal of Geophysical Research   Vol. 120   page: 5318 - 5328   2015

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: doi:10.1002/2015JA021076

  45. The spatial density gradient of galactic cosmic rays and its solar cycle variation observed with the Global Muon Detector Network Reviewed

    Kozai, M., K. Munakata, C. Kato, T. Kuwabara, J.W. Bieber, P. Evenson, M. Rockenbach, A. Dal Lago, N. J. Schuch, M. Tokumaru, M. L. Duldig, J. E Humble, I. Sabbah, H. K. Al Jassar, M. M .Sharma and J. Kota

    Earth, Planets and Space   Vol. 66   page: 151   2014

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  46. MHD Analysis of the Velocity Oscillations in the Outer Heliosphere Reviewed

    Ken'ichi Fujiki, Haruichi Washimi, Keiji Hayashi, Gary P. Zank, Munetoshi Tokumaru, Takashi Tanaka, Vladimir Florinski, and Yuki Kubo

    Geophysical Research Letters   Vol. 41 ( 5 ) page: 1420-1424   2014

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  47. Kinematic properties of slow ICMEs and an interpretation of a modified drag equation Reviewed

    Iju, T., M. Tokumaru, and K. Fujiki

    Solar Physics   Vol. 289 ( 6 ) page: 2157-2175   2014

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  48. The wavelet transform function to analyze interplanetary scintillation observations Reviewed

    E. Aguilar-Rodriguez, M. Rodriguez-Martinez, E. Romero-Hernandez, J. C. Mejia-Ambriz, J. A. Gonzalez-Esparza, and M. Tokumaru

    Geophysical Research Letters   Vol. 41   page: 3331-3335   2014

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  49. GLOBAL MUON DETECTOR NETWORK USED FOR SPACE WEATHER PURPOUSE Reviewed

    ROCKENBACH, M., Dal Lago, A., Schuch, N.J., Munakata, K., Kuwabara, T., Oliveira, A.G., E. Echer, Braga, C.R., Mendonca, R.R.S., Kato C., Yasue, S., Tokumaru, M., Bieber, J.W., Evenson P., Duldig, M. L., Humble, J. E., Al Jassar, H. K., Sharma M. M., Sabbah, I.

    Space Science Reviews   Vol. 182   page: 1-18   2014

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  50. Outflow structure of the quiet Sun corona probed by spacecraft radio scintillations in strong scattering Reviewed

    Imamura, T., M. Tokumaru, H. Isobe, D. Shiota, H. Ando, M. Miyamoto, T. Toda, B. Hausler, M. Patzold, A. Nabatov, A. Asai, K. Yaji, M. Yamada, M. Nakamura

    Astrophysical Journal   Vol. 788   page: 117   2014

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    DOI: doi:10.1088/0004-637X/788/2/117

  51. IBEX: The First Five Years (2009-2013) Reviewed

    McComas, D.J., F. Allegrini, M. Bzowski, M.A. Dayeh, R. DeMajistre, H.O. Funsten, S.A. Fuselier, M. Gruntman, P.H. Janzen, M.A. Kubiak, H. Kucharek, E. Mobius, D.B. Reisenfeld, N.A. Schwadron, J.M. Sokol, M. Tokumaru

    Astrophysical Journal Supplement Series   Vol. 213   page: 20   2014

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    DOI: doi:10.1088/0067-0049/213/2/20

  52. A study of density modulation index in the inner solar wind during solar cycle 23 Reviewed

    Susanta Kumar Bisoi, P. Janardhan, M. Ingale, P. Subramanian, S. Ananthakrishnan, M. Tokumaru, and K. Fujiki

    Astrophysical Journal   Vol. 795   page: 69   2014

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    DOI: doi:10.1088/0004-637X/795/1/69

  53. Modeling the Heliosphere Using Tomographic Reconstruction of the Solar Wind from Interplanetary Scintillation Observations as Boundary Conditions Reviewed

    Kim, T. K., N. V. Pogorelov, S. N. Borovikov, B. V. Jackson, H.-S. Yu, M. Tokumaru

    Journal of Geophysical Research   Vol. 119   page: 7981-7997   2014

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    DOI: doi:10.1002/2013JA019755

  54. Radial distribution of compressive waves in the solar corona revealed by radio occultation observations using Akatsuki spacecraft Reviewed

    Miyamoto , M., T. Imamura, M. Tokumaru, H. Ando, H. Isobe, A. Asai, D. Shiota, T. Toda, B. Hausler, M. Patzold, A. Nabatov, and M. Nakamura

    Astrophysical Journal   Vol. 797   page: 51   2014

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    DOI: doi:10.1088/0004-637X/797/1/51

  55. Modeling the Global Heliosphere Using IPS-derived Time-dependent Boundary Conditions Reviewed

    ASP Conference Series, Outstanding Problems in Heliophysics: From Coronal Heating to the Edge of the Heliosphere   Vol. 484   page: 91   2014

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  56. Three-dimensional exploration of the solar wind using observations of interplanetary scintillation Invited Reviewed

    Tokumaru, M.

    Proceedings of the Japan Academy Ser. B   Vol. 89 ( 2 ) page: 67-79   2013.2

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  57. Radial speed evolution of interplanetary coronal mass ejections during solar cycle 23

    Iju, T., M. Tokumaru, and K. Fujiki

    Solar Physics   Vol. 286   page: 331-353   2013

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  58. Kinematics of Interplanetary Coronal Mass Ejections in the Inner Heliosphere Reviewed

    Iju, T., M. Tokumaru, and K. Fujiki

    Proceedings of Solar Wind 13     page: 183-186   2013

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  59. Scintillation Measurements of the Solar Wind Velocity in Strong Scattering Near the Sun Reviewed

    Kojima, M., W. A. Coles, M. Tokumaru, and K. Fujiki

    Solar Physics   Vol. 283 ( 2 ) page: 519-540   2013

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  60. Evolution of global distribution of the solar wind from cycle 23 to the early phase of cycle 24 Reviewed

    Tokumaru, M., K. Fujiki, and M. Kojima

    Proceedings of Solar Wind 13     page: 275-278   2013

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  61. Inclusion of Real-Time in-situ Measurements into the UCSD Time-Dependent Tomography and Its Use as a Forecast Algorithm Reviewed International coauthorship

    Jackson, B.V., J. M. Clover, P. P. Hick, A. Buffington, M. M. Bisi, M. Tokumaru

    Solar Physics   Vol. 285   page: 151 - 165   2013

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    DOI: 10.1007/s11207-012-0102-x

  62. Heliolatitude and time variation of solar wind structure from in-situ measurements and interplanetary scintillation observations Reviewed

    Sokol, J.M., M. Bzowski, M. Tokumaru, K. Fujiki, D.J. McComas

    Solar Physics     2012

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    DOI: doi 10.1007/s11207-012-9993-9

  63. The first three years of IBEX observations and our evolving heliosphere Reviewed

    D.J. McComas, M.A. Dayeh, F. Allegrini, M. Bzowski, R. DeMajistre, K. Fujiki, H.O. Funsten, S.A. Fuselier, M. Gruntman, P.H. Janzen, M.A. Kubiak, H. Kucharek, G. Livadiotis, E. Mobius, D.B. Reisenfeld, M. Reno, N.A. Schwadron, J.M. Sokol, M. Tokumaru

    Astrophysical Journal, Supplement Series   Vol. 203   page: 1-36   2012

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    DOI: doi:10.1088/0067-0049/203/1/1

  64. Long-term evolution in the global distribution of solar wind speed and density fluctuations for 1997-2009 Reviewed

    Tokumaru, M., M. Kojima, and K. Fujiki

    Journal of Geophysical Research   Vol. 117   page: A06108   2012

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    DOI: doi:10.1029/2011ja017379

  65. Global Observations of Evolving 3D Solar Wind Structure Reviewed

    Tokumaru, M., K. Fujiki, H. Itoh, T. Iju, M. Kojima

    Proceedings fo 3rd Hinode Scientific Meeting   Vol. 454   page: 413-420   2012

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  66. Preliminary analysis of dynamics and realistic heliosphere using interplanetary scintillation and photospheric magnetic data Reviewed International coauthorship

    Washimi, H. K. Hayashi, M. Tokumaru, G. P. Zank, Q. Hu, T. Tanaka, V. Florinski, J. Adams, and Y. Kubo

    AIP Conf. Proc., Physics of the Heliosphere: A 10 years retrospective   Vol. 1436   page: 350 - 355   2012

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    DOI: doi:10.1063/1.4723630

  67. A newly-developed UHF radiotelescope for interplanetary scintillation observations; Solar Wind Imaging Facility Reviewed

    Tokumaru, M., M. Kojima, K. Fujiki, M. Maruyama, Y. Maruyama, H. Ito, and T. Iju

    Radio Science     2011

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    DOI: doi:10.1029/2011RS004694

  68. Two-station interplanetary scintillation measurements of solar wind speed near the Sun using the X-band radio signal of Nozomi spacecraft Reviewed

    Tokumaru, M., S. Fujimaki, M. Higashiyama, A. Yokobe, T. Ohmi, K. Fujiki, and M. Kojima

    Solar Physics   Vol. 276   page: 315-336   2011

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    DOI: doi:10.1007/s11207-011-9864-9

  69. A snapshot of the sun near solar minimum, The Whole Heliospheric Interval Reviewed

    Thompson, B.J, S.E. Gibson, P.C. Schroeder, D.F. Webb, C.N. Arge, M.M. Bisi, G. de Toma, B.A. Emery, A.B. Galvin, D.A., Haber, B.V. Jackson, E.A. Jensen, R.J. Leamon, J. Lei, P.K. Manoharan, M. Leila Mays, P.S. McIntosh, G.J.D. Petrie, S.P. Plunkett, L. Qian, P. Riley, Steven T, Suess, M. Tokumaru, B.T. Welsch, T.N. Woods

    Solar Physics   Vol. 274   page: 29-56   2011

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    DOI: doi:10.1007/s11207-011-9891-6

  70. The prelude to the deep minimum between solar cycles 23 and 24: interplanetary scintillation signatures in the inner heliosphere Reviewed

    Janardhan, P., S. K. Bisoi, S. Ananthakrishnan , M. Tokumaru , K. Fujiki

    Geophysical Research Letters   Vol. 38   page: L20108   2011

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    DOI: doi:10.1029/2011GL049227

  71. Forecasting transient heliospheric solar wind parameters at the location of the inner planets Reviewed International coauthorship

    Jackson, B.V., P.P. Hick, A. Buffington, J.M. Clover, and M. Tokumaru

    Advances in Geosciences   Vol. 30   page: 93 - 115   2011

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    DOI: 10.1142/9789814405744_0007

  72. Three-dimensional solar wind structures obtained with MHD simulation model using observation-based time-varying inner boundary map Reviewed

    Hayashi, K., M. Tokumaru, K. Fujiki, and M. Kojima

    5th international conference of numerical modeling of space plasma flows (ASTRONUM 2010)   Vol. 444   page: 111 - 116   2011

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  73. Three-dimensional reconstruction of heliospheric structure using iterative tomography: a review Reviewed International coauthorship

    Jackson, B.V., P.P. Hick, A. Buffington, M.M. Bisi, J.M Clover, M. Tokumaru, and K. Fujiki

    Journal of Atmospheric and Solar-Terrestrial Physics   Vol. 73   page: 1214 - 1227   2011

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    DOI: https://doi.org/10.1016/j.jastp.2010.10.007

  74. Solar Mass Ejection Imager (SMEI) 3D reconstruction of density enhancements behind interplanetary shocks; in situ comparison near Earth and at STEREO Reviewed International coauthorship

    Jackson, B.V., M.S. Hamilton, P.P. Hick, A. Buffington, M.M. Bisi, J.M. Clover, M. Tokumaru, and K. Fujiki

    Journal of Atmospheric and Solar-Terrestrial Physics   Vol. 73   page: 1317 - 1329   2011

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    DOI: https://doi.org/10.1016/j.jastp.2010.11.023

  75. Heavy ion flux enhancement in the vicinity of the Martian ionosphere during CIR passage: Mars Express ASPERA-3 Observations Reviewed International coauthorship

    Hara, T., K. Seki, Y. Futaana, M. Yamauchi, M. Yagi, Y. Matsumoto, M. Tokumaru, A. Fedorov, and S. Barabash

    Journal of Geophysical Research   Vol. 116   page: A02309   2011

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    DOI: doi:10.1029/2010JA015778

  76. Solar wind and CME studies of the inner heliosphere using IPS data from STELAB, ORT and EISCAT Reviewed

    Bisi, M.M., B.V. Jackson, F.A. Fallows, G.D. Dorrian, P.K. Manoharan, J.M. Clover, P.P. Hick, A. Buffington, A. R. Breen, M. Tokumaru

    Advances in Geoscience   Vol. 21   page: 33-50   2010

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  77. Is the polar region different from the quiet region of the sun? Reviewed

    Ito, H., S. Tsuneta, D. Shiota, M. Tokumaru, and K. Fujiki

    Astrophysical Journal   Vol. 719   page: 131-142   2010

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  78. Three-dimensional reconstructions and mass determination of the 02 June 2008 LASCO coronal mass ejection using STELAB IPS observations Reviewed

    Bisi, M.M., B.V. Jackson, P.P. Hick, A. Buffington, J.M. Clover, M. Tokumaru, and K. Fujiki

    Astrophysical Journal Letters   Vol. 715   page: L104-L108   2010

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  79. Precursors of the Forbush decrease on December 14, 2006 observed with the Global Muon Detector Network (GMDN) Reviewed

    Fushishita, A., K. Munakata, E. Miyasaka, C. Kato, S. Yasue, T. Kuwabara, J. W. Bieber, P. Evenson, M. R. Da Silva, A. Dal Lago, N. J. Schuch, M. Tokumaru, M. L. Duldig, J.E. Humble, and I. Sabbah

    Astrophysical Journal   Vol. 715   page: 1239-1247   2010

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  80. Relation between loop-shaped interplanetary disturbances and the magnetic flux rope Invited Reviewed

    Tokumaru, M., M. Kojima, K. Fujiki, K. Munakata, T. Kuwabara, and K. Marubashi

    Advances in Geoscience   Vol. 21   page: 21-32   2010

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  81. Solar Mass Ejection Imager (SMEI) and interplanetary scintillation (IPS) 3D-Reconstructions of the inner heliosphere Reviewed

    Jackson, B.V., P.P. Hick, A. Buffington, M.M. Bisi, J.M. Clover, and M. Tokumaru

    Advances in Geoscience   Vol. 21   page: 3339-366   2010

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  82. From the Sun to the Earth: the 13 May 2005 coronal mass ejection Reviewed

    Bisi, M.M., A.R. Breen, B.V. Jackson, R.A. Fallows, J.M. Clover, P.Riley, Z.Mikic, J.A. Linker, A.P.Walsh, C.J.Owen, A. Gonzalez-Esparza, E. Aguilar-Rodriguez, A. Wood, H. Morgan, M. Tokumaru, K. Fujiki, P.K. manoharam, I.V. Chashei, E.A. Jensen, S.E. Pryse, B.Pinter. P.P. Hick, A. Buffington

    Solar Physics   Vol. 265   page: 49-127   2010

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  83. Solar cycle variations of the solar wind speed distribution from 1985-2008 Reviewed

    Tokumaru, M., M. Kojima, and K. Fujiki

    Journal of Geophysical Research   Vol. 115   page: A04102   2010

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  84. Drift effects and the average features of cosmic ray density gradient in CIRs during successive two solar minimum periods Reviewed

    Fushishita, A., Y. Okazaki, T. Narumi, C. Kato, S. Yasue, T. Kuwabara, J.W. Bieber, P. Evenson, M.R. Da Silva, A. Dal Lago, N.J. Schuch, M. Tokumaru, M.L. Duldig, J.E. Humble, I. Sabbah, J. Kota, and K. Munakata

    Advances in Geoscience   Vol. 21   page: 199-210   2010

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  85. Solar wind forecast by using interplanetary scintillation observation Reviewed

    Fujiki, K., H. Ito, and M. Tokumaru

    Twelfth International Solar Wind Conference     page: 663 - 666   2010

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  86. 3D Reconstruction of Density Enhancements Behind Interplanetary Shocks from Solar Mass Ejection Imager White-Light Observations Reviewed International coauthorship

    Jackson, B.V., P.P. Hick, A. Buffington, M.M. Bisi, J.M. Clover, M. Tokumaru, and K. Fujiki

    Proceedings of Solar Wind 12     page: 659 - 662   2010

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  87. A Summary of 3-D Reconstructions of the Whole Heliosphere Interval and Comparison with in-Ecliptic Solar Wind Measurements from STEREO, ACE, and Wind Instrumentation Invited Reviewed

    Bisi, M. M., B. V. Jackson, J. M. Clover, P. P. Hick, A. Buffington and M. Tokumaru

    Proceedings of the International Astronomical Union   Vol. 15   page: 480 - 483   2010

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  88. Is the polar region different from the quiet region of the Sun? Reviewed

    Ito, H., S. Tsuneta, D. Shiota, M. Tokumaru, and K. Fujiki

    Twelfth International Solar Wind Conference     page: 88 - 89   2010

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  89. Large-Scale Heliospheric Structure during Solar-Minimum Conditions using a 3D Time-Dependent Reconstruction Solar-Wind Model and STELab IPS Observations Reviewed International coauthorship

    Bisi, M.M., B.V. Jackson, P.P. Hick, J.M. Clover, S. Hamilton, M. Tokumaru, and K. Fujiki

    Twelfth International Solar Wind Conference     page: 355 - 358   2010

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  90. SMEI 3D reconstruction of density enhancements behaind interplanetary shocks; in situ comparison near Earth and at STEREO Reviewed

    Jackson, B.V., M.S. Hamilton, P.P. Hick, A. Buffington, M.M. Bisi, J.M. Clover, M. Tokumaru, and K. Fujiki

    Journal of Atmospheric and Solar-Terrestrial Physics   Vol. 73   page: 1317-1329   2010

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  91. Three-dimensional reconstruction of heliospheric structure using iterative tomography: a review Reviewed

    Jackson, B.V., P.P. Hick, A. Buffington, M.M. Bisi, J.M Clover, M. Tokumaru, and K. Fujiki

    Journal of Atmosperic and Solar-Terrestrial Physics   Vol. 73   page: 1214-1227   2010

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  92. Three-dimensional magnetohydrodynamic (MHD) modeling of the solar wind structures associated with 13 Decemeber 2006 coronal mass ejection Reviewed

    Kataoka, R., T. Ebisuzaki, K. Kusano, D. Shiota, S. Inoue, T. Yamamoto, and M. Tokumaru

    Journal of Geophysical Research   Vol. 114   page: A10102   2009

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  93. Determination of ICME geometry and orientation from ground based observations of galactic cosmic rays Reviewed

    Kuwabara, T., J. W. Bieber, P. Evenson, K. Munakata, S. Yasue, C. Kato, A. Fushishita, M. Tokumaru, M. L. Duldig, J. E. Humble, M. R. Silva, A. Dal Lago, and N. J. Schuch

    Journal of Geophysical Research   Vol. 114   page: A05109   2009

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  94. Low-resolution STELab IPS 3D reconstructions of the Whole Heliospheric Interval and comparison with in-ecliptic solar wind measurements from STEREO and Wind instrumentation Reviewed

    Bisi, M.M., B.V. Jackson, A. Buffington, J.M. Clover, P.P. Hick, and M. Tokumaru

    Solar Physics   Vol. 256   page: 201-217   2009

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  95. *Non-dipolar solar wind structure observed in the cycle 23/24 minimum Reviewed

    Tokumaru, M., M. Kojima, K. Fujiki, and K. Hayashi

    Geophysical Research Letters   Vol. 36   page: L09101   2009

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    Interplanetary scintillation (IPS) observations made in the Cycle 23/24 minimum using the Solar-Terrestrial Environment Laboratory (STEL) multi-station system indicated that during intervals the solar wind had a significantly non-dipolar structure that consisted of fast
    wind components at the poles and the equator and slower wind components in between. The solar wind structure revealed from the IPS observations was consistent with a marked increase in the occurrence of fast winds observed in situ near the earth. The poleward boundary of the slow wind region observed during this minimum was +/-30 north
    and south. In addition, our IPS observations revealed that the organization of the 3-dimensional solar wind was highly variable during 2007-2008. These features greatly differ from those observed during the previous minima. This fact may be attributed to the weak magnetic field intensity at the poles during the Cycle 23/24 minimum.

  96. Interplanetary scintillation observations of the solar wind for space weather modeling Invited Reviewed

    Tokumaru, M., M. Kojima, and K. Fujiki

    Transactions of the Japan Society for Aeronautical and Space Sciences, Space Technology Japan   Vol. 7 ( 26 ) page: Pr_2_1-P_2r_5   2009

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  97. 3D reconstructions of the early-November 2004 CDAW geomagnetic storms: analysis of Ooty IPS speed and density data Reviewed International coauthorship

    Bisi, M.M., B. V. Jackson, J. M. Clover, P. K. Manoharan, M. Tokumaru, P. P. Hick, and A. Buffington

    Annales Geophysicae   Vol. 27   page: 4479 - 4489   2009

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  98. Comparison of the extent and mass of CME events in the interplanetary medium using IPS and SMEI Thomson scattering observations Invited Reviewed

    Jackson, B.V., P.P. Hick, A. Buffington, M.M. Bisi, M. Kojima, and M. Tokumaru

    Astronomical & Astrophysical Transactions   Vol. 26 ( 6 ) page: 477-487   2007

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  99. IPS tomographic observations of 3D solar wind structure Invited Reviewed

    Kojima, M., M. Tokumaru, K. Fujiki, K. Hayashi, and B. V. Jackson

    Astronomical and Astrophysical Transactions   Vol. 26 ( 6 ) page: 467-476   2007

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  100. *The source and propagation of the interplanetary disturbance associated with the full-halo coronal mass ejection on October 28, 2003 Reviewed

    Tokumaru, M., M. Kojima, K. Fujiki, M. Yamashita, B.J. Jackson

    Journal of Geophysical Research   Vol. 112 ( A05106 ) page: doi:10.1029/2006JA012043   2007

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  101. What coronal parameters determine solar wind speed? Invited Reviewed

    Kojima, M., M. Tokumaru, K. Fujiki, H. Itoh, T. Murakami, and K. Hakamada,

    AIP Conference Series "New solar physics with solar-B mission"   Vol. 369   page: 549-555   2007

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  102. On the cross-field diffusion of galactic cosmic rays into the magnetic flux rope of a CME Reviewed

    Munakata, K., S. Yasue, C. Kato, J. Kota, M. Tokumaru, M. Kojima, A.A. Dawrwish, T. Kuwabara, and J.W. Bieber

    Advances in Geosciences   Vol. 2   page: 115-124   2006

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  103. *Reconstructed global feature of interplanetary disturbance for the full-halo coronal mass ejection event on 1999 September 20 Reviewed

    Tokumaru, M. M. Yamashita, M. Kojima, K. Fujiki, and T. Nakagawa

    Advances in Space Research   Vol. 38 ( 3 ) page: 547-551   2006

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  104. *Tracking heliospheric disturbances by interplanetary scintillation Invited Reviewed

    Tokumaru, M., M. Kojima, K. Fujiki, and M. Yamashita

    Nonlinear Processes in Geophysics   Vol. 13   page: 329-338   2006

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  105. Resolving the enigmatic solar wind disappearing event of 11 May 1999 Reviewed

    Janardhan, P., K. Fujiki, M. Kojima, M. Tokumaru, and K. Hakamada

    Journal of Geophysical Research   Vol. 110 ( A08101 ) page: doi:10.1029/2004JA010535   2005.8

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  106. *Interplanetary consequences caused by the extremely intense solar activity during October-November 2003 Reviewed

    Tokumaru, M., M. Kojima, K. Fujiki, M. Yamashita, and D. Baba,

    Journal of Geophysical Research   Vol. 110 ( A01109 ) page: doi: 10.1029/2004JA010656   2005.1

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  107. Correlation between Expansion Rate of the Coronal Magnetic Field and Solar Wind Speed in a Solar Activity Cycle Reviewed

    Hakamada, K., M. Kojima, T. Ohmi, M. Tokumaru, and Ken'ichi Fujiki

    Solar Physics   Vol. 227   page: 387-399   2005

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    Language:English   Publishing type:Research paper (scientific journal)  

  108. Relation between solar wind velocity and properties of its source region Reviewed

    Fujiki, K., M. Hirano, M. Kojima, M. Tokumaru, D. Baba, M Yamashita, K. Hakamada

    Advances in Space Research   Vol. 35 ( 12 ) page: 2185-2188   2005

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  109. Phase scintillation observation during coronal sounding experiments with NOZOMI spacecraft Reviewed

    Imamura, T., K. Noguchi, A. Nabatov, K.-I. Oyama, Z. Yamamoto, and M. Tokumaru,

    Astronomy and Astrophysics   Vol. 439   page: 1165-1169   2005

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  110. Geometry of an interplanetary CME on October 29, 2003 deduced from cosmic rays Reviewed

    Kuwabara, T., K. Munakata, S. Yasue, C. Kato, S. Akahane, M. Koyama, J.W. Bieber, P. Evanson, Z. Fujii, M. Tokumaru, M. Kojima, K. Marubashi, M.L. Dulding, J.E. Humble, M.R.Silva, N.B. Trivedi, W.D. Gonzalez, and N.J. Schuch

    Geophysical Research Letter   Vol. 31 ( L19803 ) page: doi:10.1029/2004GL020803   2004

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  111. Origin of the slow solar wind Reviewed

    Ohmi, T., M. Kojima, M. Tokumaru, K. Fujiki, and K. Hakamada

    Advances in Space Research   Vol. 33   page: 689-695   2004

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  112. Fast solar wind after the rapid acceleration Reviewed

    Kojima, M., A. R. Breen, K. Fujiki, K. Hayashi, T. Ohmi, and M. Tokumaru

    Journal of Geophysical Research   Vol. 109 ( A04103 ) page: doi:10.1029/2003JA010247   2004

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  113. Solar Wind Properties from IPS observations Invited Reviewed

    Kojima, M., K. Fujiki, M. Hirano, M. Tokumaru, T. Ohmi, and K. Hakamada

    The Sun and the heliosphere as an Integrated System     page: 147 - 178   2004

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  114. How did the solar wind structure change around the solar maximum? - From interplanetary scintillation observation Reviewed

    Fujiki, K., M. Kojima, M. Tokumaru, T. Ohmi, A. Yokobe, K. Hayashi, D.J. McComas, and H.A. Elliott

    Annales Geophysicae   Vol. 21   page: 1257-1261   2003

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  115. Global structure of interplanetary coronal mass ejections retrieved from the model fitting analysis of radio scintillation observations Reviewed

    Tokumaru, M., M. Kojima, K. Fujiki, M. Yamashita

    Proceedings of 10th international conference on solar wind     page: 729-732   2003

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  116. Radial dependence of propagation speed of solar wind disturbance Reviewed

    Yamashita, M., M. Tokumaru, and M. Kojima

    Proceedings of 10th international conference on solar wind     page: 754-757   2003

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  117. Time-dependent tomography of heliospheric features using interplanetary scintillation (IPS) remote-sensing observations Reviewed

    Jackson, B.V., P.P. Hick, A. Buffington, M. Kojima, M. Tokumaru, K. Fujiki, T. Ohmi, and M. Yamashita

    Proceedings of 10th international conference on solar wind     page: 75-78   2003

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  118. MHD tomography using interplanetary scintillation measurement Reviewed

    Hayashi, K., M. Kojima, M. Tokumaru, and K. Fujiki

    Journal of Geophysical Research   Vol. 108 ( A3 ) page: 1102(DOI:10.1029/2002JA009567)   2003

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  119. Polar low-speed solar wind reappeared at the solar activity maximum of cycle 23 Reviewed

    Ohmi, T., M. Kojima, M. Tokumaru, K. Fujiki, K. Hayashi, and K. Hakamada

    Geophys. Res. Lett.   Vol. 30 ( 7 ) page: 1409(DOI:10.1029/2002GL016347)   2003

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  120. Toroidal-shaped interplanetary disturbance associated with the halo coronal mass ejection event on July 14, 2000 Reviewed

    Tokumaru, M., M. Kojima, K. Fujiki, M. Yamashita, and A. Yokobe

    Journal of Geophysical Research   Vol. 108 ( A5 ) page: 1220(DOI:10.1029/2002JA009574)   2003

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  121. Evidences for low-speed streams from small coronal hole Reviewed

    Ohmi, T., M. Kojima, K. Hayashi, A. Yokobe, M. Tokumaru, K. Fujiki, and K. Hakamada

    Proceedings of 10th international conference on solar wind     page: 137 - 140   2003

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  122. Solar wind velocity structure around the solar maximum observed by interplanetary scintillation Reviewed International coauthorship

    Fujiki, K., M. Kojima, M. Tokumaru, T. Ohmi, A. Yokobe, K. Hayashi, D.J. McComas and H.A. Elliott

    Proceedings of 10th international conference on solar wind     page: 226 - 229   2003

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  123. Solar cycle dependence of high-latitude solar wind Reviewed

    Fujiki, K., M. Kojima, M. Tokumaru, T. Ohmi, A. Yokobe, and K. Hayashi

    Proceedings of 10th international conference on solar wind     page: 141 - 143   2003

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  124. Solar wind imaging facility (SWIFT) for space weather research Reviewed

    Kojima, M., M. Tokumaru, K. Fujiki, Y. Ishida, T. Ohmi, K. Hayashi, M. Yamashita

    Proceedings of the SPIE   Vol. 4853   page: 121 - 128   2003

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  125. Basic results of MHD tomography analysis method for IPS observations Reviewed

    Hayashi, K., K. Fujiki, M. Kojima, and M. Tokumaru

    Proceedings of 10th international conference on solar wind     page: 144 - 147   2003

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  126. Observation of travelling interplanetary disturbances Reviewed

    Ananthakrishnan, S., M. Tokumaru, and M. Kojima

    Advances in Space Research   Vol. 29   page: 1467-1471   2002

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  127. Solar wind speed and expansion rate of the coronal magnetic field in solar maximum and minimum phases Reviewed

    Hakamada, K., M. Kojima, M. Tokumaru, T. Ohmi, A. Yokobe, and K. Fujiki

    Solar Physics   Vol. 207   page: 173-185   2002

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  128. Tomographic analysis of 3-D solar wind structure using interplanetary scintillation Reviewed International coauthorship

    Kojima, M., K. Fujiki, M. Tokumaru, T. Ohmi, Y.Shimizu, A. Yokobe, B.V. Jackson, and P.L. Hick

    Space Weather Study Using Multi-Point Techniques   Vol. 12   page: 55 - 59   2002

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  129. Coronal mass ejection of July 14, 2000 Flare Event: Imaging from near-Sun to Earth environment Reviewed

    Manoharan, P.K., M. Tokumaru, M. Pick, P. Subramanian, F.M. Ipavich, K. Schenk, M.L. Kaiser, R.P. Lepping, and A. Vourlidas

    Astrophysical Journal   Vol. 559   page: 1180-1189   2001

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  130. Latitudinal velocity structures up to the solar poles estimated from interplanetary scintillation tompgraphy analysis Reviewed

    Kojima, M., K. Fujiki, T. Ohmi, M. Tokumaru, A. Yokobe, and K. Hakamada

    Journal of Geophysical Research   Vol. 106   page: 15677-15686   2001

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  131. Improvments to the HAF solar wind model for space weather predictions, Reviewed

    Fry, C.D., W. Sun, C.S. Deehr, M. Dryer, Z. Smith, S.-I. Akasofu, Munetoshi Tokumaru, and Masayoshi Kojima

    Journal of Geophysical Research   Vol. 106   page: 20985-21002   2001

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  132. Polar low-speed solar wind at the solar activity maximum Reviewed

    Ohmi, T., M. Kojima, A. Yokobe, M. Tokumaru, K. Fujiki, and K. Hakamada

    Journal of Geophysical Research   Vol. 106   page: 24923-24936   2001

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  133. 水メーザ電波源とクェーサの惑星間空間シンチレーションを用いた太陽風加速域の探査 Reviewed

    徳丸宗利、山内洋平、近藤哲朗

    通信総合研究所季報   Vol. 47   page: 179 - 201   2001

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  134. Interplanetary disturbances through the minimum to the maximum solar activities Reviewed

    Watanabe, T., M. Kojima, and M. Tokumaru

    Advances in Space Research   Vol. 25 ( 9 ) page: 1951-1960   2000

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  135. Radial distance dependence of the solar wind speed at high latitudes observed by interplanetary scintillation Reviewed

    Yokobe, A., M. Kojima, and M. Tokumaru

    Advances in Space Research   Vol. 25 ( 9 ) page: 1947-1950   2000

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  136. Large-scale structure of solar wind turbulence near the solar activity minimum Reviewed

    Tokumaru, M., M. Kojima, Y. Ishida, A. Yokobe, and T. Ohmi

    Advances in Space Research   Vol. 25 ( 9 ) page: 1943-1946   2000

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  137. Observations of interplanetary scintillation during the 1998 Whole Sun Month: a comparison between EISCAT, ORT and Nagoya data Reviewed

    Moran, P.J., S. Ananthakrishnan, V. Balasubramanian, A.R. Breen, A. Canals, R.A. Fallows, P. Janardhan, M. Tokumaru, and P.J.S. Williams

    Annales Geophysicae   Vol. 18   page: 1003-1008   2000

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  138. Ansiotropy of magnetosonic turbulence in the solar wind between 0.1 and 0.4 AU Reviewed

    Chashei, I.V., M. Kojima, and M. Tokumaru

    Journal of Geophysical Research   Vol. 105 ( A12 ) page: 27401-27408   2000

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  139. Three-dimensional propagation of interplanetary disturbances detected with radio scintillation measurements at 327MHz Reviewed

    Tokumaru, M., M. Kojima, K. Fujiki, and A. Yokobe

    Journal of Geophysical Research   Vol. 105 ( A5 ) page: 10435-10453   2000

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  140. Low-speed solar wind associations with active regions near solar minimum Reviewed

    Kojima, M., K. Fujiki, K. Hakamada, T. Ohmi, M. Tokumaru, and A. Yokobe

    Advance in Space Research   Vol. 25 ( 9 ) page: 1893 - 1896   2000

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  141. Radial variation of solar wind velocity near the sun Reviewed

    Tokumaru, M., M. Kojima, T. Ohmi, T. Kondo, and K. Hakamada

    Proc. Solar Wind 9     page: 313-316   1999

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  142. Study of solar wind transients using IPS Reviewed

    Ananthakrishnan, S., M. Tokumaru, M. Kojima, V. Balasubramanian, P.Janardhan, P.K.Manoharan, and M. Dryer

    Proc. Solar Wind 9     page: 321-324   1999

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  143. Low-speed solar wind from the vicinity of solar active regions Reviewed

    Kojima, M., K. Fujiki, T. Ohmi, M. Tokumaru, A. Yokobe, and K. Hakamada

    Journal of Geophysical Research   Vol. 104   page: 16993-17003   1999

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  144. The highest solar wind velocity in a polar region estimated from IPS tomography analysis Reviewed

    Kojima, M., K. Fujiki, T. Ohmi, M. Tokumaru, A. Yokobe, and K. Hakamada

    Space Science Reviews   Vol. 87   page: 237-239   1999

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  145. Solar wind measured by interplanetary scintillation method Reviewed

    Kojima, M., K. Asai, K. Hakamada, T. Ohmi, M. Tokumaru, and A. Yokobe

    Proc. Solar Wind 9     page: 29 - 34   1999

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  146. Comparison of solar wind speed with coronagraph data analyzed by tomography Reviewed International coauthorship

    Yokobe, A., T. Ohmi, K. Hakamada, M. Kojima, M. Tokumaru, B.V. Jackson, P.P. Hick, and S. Zidowitz

    Proc. Solar Wind 9     page: 565 - 567   1999

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  147. Radial evolution of micro-turbulence in the solar wind observed with interplanetary scintillation Reviewed International coauthorship

    Yamauchi, Y., M. Tokumaru, M. Kojima, P.K. Manoharan, and R. Esser

    Proc. Solar Wind 9     page: 473 - 474   1999

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  148. Heliospheric tomography using interplanetary scintillation observations, II. Latitude and heliocentric distance dependence of solar wind structure at 0.1-1 AU Reviewed

    Kojima, M., M. Tokumaru, H. Watanabe, A. Yokobe, K. Asai, B.V. Jackson, and P.L. Hick

    Journal of Geophysical Research   Vol. 103   page: 1981-1989   1998

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  149. A study of density fluctuations in the solar wind accenleration region Reviewed

    Yamauchi, Y., M. Tokumaru, M. Kojima, P.K. Manoharan, R. Esser

    Journal of Geophysical Research   Vol. 103   page: 657-6583   1998

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  150. Heliospheric tomography using interplanetary scintillation observations, III. Velocity dependence of electron density fluctuations Reviewed

    Asai, K., M. Kojima, M. Tokumaru, A. Yokobe, B.V. Jackson, P.L. Hick, and P.K. Manoharan,

    Journal of Geophysical Research   Vol. 103   page: 1991-2001   1998

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  151. Observations of the solar wind close to the sun by interplanetary scintillation Reviewed

    Tokumaru, M., H. Mori, T. Tanaka, T. Kondo, and H. Takaba

    Proc. STPW '96     page: 138-141   1997

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  152. 天体電波による太陽風プラズマの計測 Reviewed

    小島正宜、徳丸宗利、山内洋平、横辺篤史、浅井紀久夫

    精密工学会誌   Vol. 63 ( 10 ) page: 1363 - 1367   1997

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  153. Mico-turbulence in the solar wind at 5-76 Rs observed with interplanetary scintillation Reviewed

    Yamauchi, Y., M. Kojima, M. Tokumaru, H. Misawa, H. Mori, T. Tanaka, H. Takaba, T. Kondo, and P.K. Manoharan

    Journal of Geomagnetism and Geoelectricity   Vol. 48   page: 1201-1217   1996

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  154. Temporal Spectrum of Interplanetary Scintillation in the near-Sun Region Reviewed

    Shishov, V.I., and M. Tokumaru

    Journal of Geomagnetism and Geoelectricity   Vol. 48   page: 1461-1480   1996

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  155. Evolution of the solar wind acceleration region during 1990-1994 Reviewed

        page: 121-124   1995

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  156. A low-latitude aurora observed at Rikubetsu (L=1.6) during the magnetic storm of September 13, 1993 Reviewed

    Shiokawa, K., K. Yumoto, Y. Tanaka, Y. Kiyama, Y. Kamide, and M. Tokumaru

    Proceedings of the NIPR Symposium on Upper Atmosphere Physics   Vol. 8   page: 17-23   1995

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  157. Faraday Effect in the Jovian Decametric Radiation Observed with a New Radio spectrograph at Wakkanai Reviewed

    Tokumaru, M.

    Journal of Geomagnetism and Geoelectricity   Vol. 47   page: 577-582   1995

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  158. Evolution of the Solar Wind Structure in the Acceleration Region during 1990-1993 (STEP Interval) Reviewed

    Tokumaru, M., H. Mori, T. Tanaka, T. Kondo

    Journal of Geomagnetism and Geoelectricity   Vol. 47   page: 1113-1120   1995

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  159. Tomographic imaging of the ionosphere over Japan by the modified truncated SVD method Reviewed

    Kunitake, M., K. Ohtaka, T. Maruyama, M. Tokumaru, A. Morioka, and S. Watanabe,

    Annales Geophysicae   Vol. 13   page: 1303-1310   1995

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  160. Observations of micro-turbulence in the solar wind near the sun with interplanetary scintillation Reviewed International coauthorship

    Yamauchi, Y., H. Misawa, M. Kojima, H. Mori, T. Tanaka, H. Takaba, T. Kondo, M. Tokumaru, and P.K. Manoharan

    Proc. International Solar Wind Eight Conference     page: 366   1995

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  161. Solar Wind Motion near the Sun Derived from Simultaneous Interplanetary Scintillation Observations at 2GHz and 8GHz Reviewed

    Tokumaru,M., T.Kondo, H.Mori, and T.Tanaka

    Journal of Geomagnetism and Geoelectricity   Vol. 46   page: 835-849   1994

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  162. 宇宙天気予報のための宇宙環境モニターデータ伝送システムの開発 Reviewed

    徳丸宗利、川崎和義

    通信総合研究所季報   Vol. 39   page: 65 - 71   1993

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  163. Observations of solar wind near the sun from microwave IPS phenomena Reviewed

    Tokumaru,M., H.Mori, T.Tanaka, T.Kondo, H.Takaba, and Y.Koyama

    Solar Wind Seven     page: 289-292   1992

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  164. Near-realtime data collection from Syowa station and its utilization for space weather forecast Reviewed

    Tokumaru,M., K.Kawasaki, M.Ejiri, H.Yamagishi, N.Sato

    Proceedings of the NIPR Symposium on Upper Atmosphere Physics   Vol. 5   page: 26-30   1992

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  165. ウルシグラム自動翻訳・解析システムの開発とその応用 Reviewed

    徳丸宗利、川崎和義

    通信総合研究所季報   Vol. 38   page: 73 - 84   1992

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  166. Solar Wind near the Sun Observed with Interplanetary Scintillation Using Three Microwave Freguencies Reviewed

    Tokumaru,M., H.Mori, T.Tanaka, T.Kondo, H.Takaba, and Y.Koyama

    Journal of Geomagnetism and Geoelectricity   Vol. 43   page: 619-630   1991

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  167. A proposal for a study of the solar wind plasma near the sun by simultaneous observations with SOLAR-A and Kashima 34m antenna Invited Reviewed

    Tokumaru,M., H.Mori, and T.Tanaka

    Flare Physics in Solar Activity Maximum 22     page: 349 - 352   1991

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  168. 電波天文観測用周波数選択膜の開発-40/80GHz帯FSSの試作 Reviewed

    入交芳久、鷹野敏明、徳丸宗利

    電子情報通信学会論文誌   Vol. J73-B-II   page: 20-26   1990

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  169. Data network system for space weather forecast Reviewed

    Tokumaru,M., T.Kikuchi, and K.Marubashi

    Proceedings of Solar-Terrestrial Predictions Workshop in Sydney   Vol. 2   page: 163 - 174   1990

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  170. VLBI using a telescope in Earth orbit, I. The observations Reviewed

    Levy, G.S., R.P.Linfield, C.D.Edwards, J.S.Ulvestad, J.F.Jordan,Jr., S.J.Dinardo, C.S.Christensen, R.A.Preston, L.J.Skjerve, L.R.Stavert, B.F.Burke, A.R.Whitney, R.J.Cappallo, A.E.E.Rogers, K.B.Blaney, M.J.Maher, C.H.Ottenhoff, D.L.Jauncy, W.L.Peters, J.Reynolds, T.Nishimura, T.Hayashi, T.Takano, T.Yamada, H.Hirabayashi, M.Morimoto, M.Inoue, T.Shiomi, N.Kawaguchi, H.Kunimori, M.Tokumaru, and F.Takahashi

    Astrophysical Journal   Vol. 336   page: 1098-1104   1989

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  171. 宇宙天気予報のための宇宙環境データネットワークの概要 Reviewed

    徳丸宗利

    通信総合研究所季報   Vol. 35   page: 21 - 29   1989

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  172. Characteristics of source location of Jovian decametric radiation observed by 75km baseline interferometer

    Tokumaru,M., H. Oya, and A. Morioka

    Proceedings of Chapman Conference on Plasma Waves and Instabilities in Magnetospherers and at Comets     page: 344 - 347   1987

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  173. エルサレムクロス型周波数選択板の特性測定結果

    徳丸宗利、川口則幸、泉哲次郎、石丸元、飯田章彦

    電気通信学会技術報告   Vol. AP86-72   page: 59-66   1986

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▼display all

Books 3

  1. Cross-Calibration of Past and Present Far UV Spectra of Solar System Objects and the Heliosphere

    Bzowski, M., Sokol, J.M., Tokumaru, M., Fujiki, K., Quemerais, E., Lallement, R., Ferron, S., Bochsler, P., McComas, D.J.( Role: Joint author)

    Springer Science+Business Media  2013 

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  2. シリーズ現代の天文学、第10巻「太陽」4.4節「太陽風計測」および9.2節「惑星間空間擾乱」

    小島正宜、徳丸宗利( Role: Joint author)

    日本評論社  2009.3 

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  3. The Sun and the heliosphere as an Integrated System,Chapter 6. Solar Wind Properties from IPS observations

    Kojima, M., K. Fujiki, M. Hirano, M. Tokumaru, T. Ohmi, and K. Hakamada( Role: Joint author)

    Kluwer Academic Publishers  2004 

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    Language:English

Presentations 88

  1. Orbit1, 2の近日点付近におけるParker Solar Probeと惑星間空間シンチレーション観測の比較

    地球電磁気・地球惑星圏学会第148回講演会  2020.11.1  地球電磁気・地球惑星圏学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  2. Preliminary survey for solar occultation observations of BepiColombo after entering orbit around Mercury International conference

    M. Tokumaru

    2021.2.16  ISEE, Nagoya University

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    Event date: 2021.2

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Online   Country:Japan  

  3. 327MHz multi-station system for interplanetary scintillation observations at ISEE International conference

    M. Tokumaru

    Technology for next generation space-earth environmental radio science  2020.8.27  ISEE, Nagoya University

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    Event date: 2020.8

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Online   Country:Japan  

  4. Global ditribution of the solar wind speed during Cycle 22-24 International conference

    Tokumaru, M., K. Fujiki, K. Iwai, N. Nishimura, and R. Maeda

    JpGU2020  2020.7.13 

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    Event date: 2020.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  5. Key issues on the solar wind from exploration of the inner heliosphere in Cycle 25 International conference

    M. Tokumaru

    New perspective of inner heliosphere studies ~ toward solar cycle 25   2019.11.8  ISAS/JAXA, ISEE/Nagoya University, P-STEP

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    Event date: 2019.11

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Online   Country:Japan  

  6. かにパルサーの太陽掩蔽による5-14 Rsにおけるコロナプラズマ密度測定

    徳丸宗利,俵海人,前田龍哉,岳藤一宏,寺澤敏夫

    地球電磁気・地球惑星圏学会第146回講演会 

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    Event date: 2019.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本市   Country:Japan  

  7. 3D reconstruction of the heliosphere using onservations of interplanetary scintillation Invited International conference

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    Event date: 2019.7

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:France  

  8. 惑星間空間シンチレーション観測の天空投影図中のCMEの位置に対する視線積分の効果

    徳丸宗利、藤木謙一、岩井一正

    JpGU2019 

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    Event date: 2019.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  9. Interplanetary scintillation measurements using the 327-MHz multi-station system Invited International conference

    Tokumaru, M., K. Fujiki, and K. Iwai

    MWA project meeting 

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    Event date: 2018.12

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  10. 宇宙天気予報改善に向けた太陽風の観測的研究課題ーグローバルな太陽風の観点から Invited

    徳丸宗利

    地球電磁気・地球惑星圏学会第144回講演会 

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    Event date: 2018.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  11. Interplanetary Scintillation as a Useful Tool for Space Weather Forecast Invited International conference

    The 8th Space Weather (SWx) Conference 

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    Event date: 2018.7

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Korea, Republic of  

  12. Coordinated interplanetary scintillation observations at Kapan and Russia for halo coronal mass ejection events in September 2017 International conference

    Tokumaru, M., K. Fujiki, K. Iwai, S. Tyullbashev, I. Chashei

    AOGS 2018 

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    Event date: 2018.6

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Honolulu, Hawaii   Country:United States  

  13. 2017年9月に発生したHalo CMEイベントに対する日本・ロシアの協同IPS観測結果

    徳丸宗利、藤木謙一、岩井一正、Sergey Tyullbashev, and Igor Chashei

    JpGU2018 

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    Event date: 2018.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  14. Global observations of the solar wind using interplanetary scintillation International conference

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    Event date: 2017.12

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:United Kingdom  

  15. かにパルサーの周波数分散を用いたサイクル24/25 極小期における極域太陽風密度の研究

    徳丸宗利, 丸山益史, 俵海人, 岳藤一宏, 関戸衛, 宮内結花, 寺澤敏夫

    地球電磁気・地球惑星圏学会 第142回総会及び講演会 

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    Event date: 2017.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都大学宇治キャンパス   Country:Japan  

  16. Rarefaction of the Very-Slow (<350 km/s) Solar Wind in Cycle 24

    M. Tokumaru, T. Shimoyama, K. Fujiki

    JpGU 2017 

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    Event date: 2017.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  17. Long-term change in global distribution of the solar wind Invited

    Tokumaru, M., K. Fujiki, and K. Hakamada

    The 2nd P-STEP international symposium 

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    Event date: 2017.3

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Kyoto University   Country:Japan  

  18. IPS 観測から得られた太陽風速度とコロナホール面積の関係

    徳丸宗利、里中大紀、藤木謙一、林啓志、袴田和幸

    地球電磁気・地球惑星圏学会 第140回総会及び講演会 

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    Event date: 2016.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス(福岡)   Country:Japan  

  19. Space weather study using interplanetary scintillation observations at ISEE Invited International conference

    Tokumaru, M., K. Fujiki, N. Nishimura, and N. Nozaki

    2016 The 4th AOSWA workshop 

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    Event date: 2016.10

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Jeju, Korea   Country:Korea, Republic of  

  20. IPS 観測から得られた太陽風速度とコロナホール面積の関係

    徳丸宗利、里中大紀、藤木謙一、袴田和幸

    日本天文学会2016年秋季年会 

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    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:愛媛大学(松山市)   Country:Japan  

  21. Improved relation between the solar wind speeds and coronal hole areas Invited International conference

    Tokumaru, M., K. Fujiki, D. Satonaka, and K. Hakamada

    AOGS2016 

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    Event date: 2016.7 - 2016.8

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Beijing, China   Country:China  

  22. 惑星間空間シンチレーションを用いた太陽風乱流スペクトルの解析

    徳丸宗利

    日本地球惑星科学連合2016年大会 

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    Event date: 2016.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:幕張メッセ国際会議場(千葉県幕張市)   Country:Japan  

  23. Interplanetary scintillation observations of the solar wind using 327-MHz multi-station system International conference

    Tokumaru, M., K. Fujiki, K. Hayashi, T. Iju, D. Satonaka, T. Shimoyama, H. Nakano, N. Nishimura, and N. Nozaki

    Third remote sensing of the inner heliosphere and space weather applications workshop 

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    Event date: 2015.10

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Mexico  

  24. Global Distribution of the Solar Wind and its Evolution during Cycles 22-24 International conference

    Tokumaru, M., K. Fujiki, M. Kojima, T. Iju, H. Nakano, D. Satonaka, T. Shimoyama, and K. Hakamada

    Solar Wind 14 

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    Event date: 2015.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:China  

  25. サイクル22-24の太陽風速度のグローバル分布に見られる南北非対称性 International conference

    徳丸宗利、藤木謙一、里中大紀、下山智也、中野裕文

    日本地球惑星科学連合2015年大会 

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    Event date: 2015.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:幕張国際会議場   Country:Japan  

  26. 太陽から地球を越え恒星間空間へと広がる太陽風の観測研究

    徳丸宗利、藤木謙一

    日本地球惑星科学連合2015年大会 

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    Event date: 2015.5

    Language:English   Presentation type:Poster presentation  

    Venue:幕張国際会議場   Country:Japan  

  27. 多地点IPS 観測システムの更新とサイクル24極大期の太陽風観測(2)

    徳丸宗利、藤木謙一、丸山一夫、丸山益史、山崎高幸、川端哲也、伊集朝哉

    地球電磁気・地球惑星圏学会総会・講演会 

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    Event date: 2014.10 - 2014.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  28. 3D Reconstruction of the Heliosphere Using Interplanetary Scintillation Observations International conference

    Tokumaru, M., K. Fujiki, T. Iju, K. Hayashi, H. Washimi, and B.V. Jackson

    AOGS 2014 

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    Event date: 2014.7 - 2014.8

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  29. Long-Term Change in Global Distribution of the Solar Wind during Cycles 22-24 International conference

    Tokumaru, M., K. Fujiki, T. Iju

    AOGS 2014 

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    Event date: 2014.7 - 2014.8

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  30. 多地点IPS観測システムの更新とサイクル24極大期の太陽風観測

    徳丸宗利、藤木謙一、丸山一夫、丸山益史、山崎高幸、伊集朝哉

    日本地球惑星科学連合2014年連合大会 

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    Event date: 2014.4 - 2014.5

    Language:Japanese   Presentation type:Poster presentation  

    Venue:パシフィココ横浜   Country:Japan  

  31. 惑星間空間から星間媒質へ広がる宇宙空間プラズマ観測の最前線

    徳丸宗利

    日本地球惑星科学連合2014年連合大会 

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    Event date: 2014.4 - 2014.5

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:パシフィココ横浜   Country:Japan  

  32. Long-Term Changes in Global Distribution of the Solar Wind International conference

    Tokumaru, M., K. Fujiki, and T. Iju

    CAWSES-II Symposium  

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    Event date: 2013.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  33. 惑星間空間シンチレーションによる太陽風速度測定:スペクトルフィッティング法と相互相関法の比較

    徳丸宗利

    地球電磁気・地球惑星圏学会 第134回総会講演会 

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    Event date: 2013.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:高知大学   Country:Japan  

  34. Interplanetary scintillation observations of the solar wind using SWIFT and upgraded multi-station system International conference

    Tokumaru, M., K. Fujiki, and T. Iju

    AOGS 2013 

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    Event date: 2013.6

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Australia  

  35. 太陽風のグローバル分布に見られる南北非対称性

    徳丸宗利、藤木謙一、伊集朝哉

    日本地球惑星科学連合2013年連合大会 

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    Event date: 2013.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:幕張国際会議場   Country:Japan  

  36. サイクル24上昇期における太陽風大規模構造の発展

    徳丸 宗利, 藤木 謙一, 伊集 朝哉

    地球電磁気・地球惑星圏学会第132回講演会 

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    Event date: 2012.10

    Language:English   Presentation type:Oral presentation (general)  

    Venue:札幌コンベンションセンター   Country:Japan  

  37. Long-term variation in distribution of solar wind density fluctuations for 1997-2009 International conference

    Tokumaru, M., M. Kojima, and K. Fujiki

    2011 AGU Fall Meeting 

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    Event date: 2011.12

    Language:English   Presentation type:Poster presentation  

    Country:United States  

  38. 惑星間空間シンチレーション観測による太陽風の加速と擾乱伝搬ダイナミックスの研究

    徳丸宗利

    地球電磁気・地球惑星圏学会第130回講演会 

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    Event date: 2011.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:神戸大学   Country:Japan  

  39. 新3地点IPS観測システムの構築と最近の太陽風観測結果

    徳丸 宗利, 丸山 一夫, 丸山 益史, 藤木 謙一,伊集 朝哉

    地球電磁気・地球惑星圏学会第130回講演会 

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    Event date: 2011.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:神戸大学   Country:Japan  

  40. Global observations of the solar wind with STEL IPS array International conference

    Tokumaru, M., K. Fujiki, T. Iju, M. Hirota, M. Noda, and M. Kojima

    AOGS 2011 

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    Event date: 2011.8

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Taiwan, Province of China  

  41. 1997-2009 年における太陽風密度ゆらぎ分布の長期変動

    徳丸宗利、小島正宜、藤木謙一

    日本地球惑星科学連合2011年連合学会 

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    Event date: 2011.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:幕張国際会議場   Country:Japan  

  42. A New Radiotelescope for Interplanetary Scintillation Observations: Solar Wind Imaging Facility (SWIFT) International conference

    2010 Asia-Pacific Radio Science Conference 

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    Event date: 2010.9

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  43. 太陽圏イメージング装置による327MHzマッピング観測

    徳丸宗利、丸山一夫、丸山益史、藤木謙一、小島正宜

    日本天文学会2010年秋季年会 

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    Event date: 2010.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  44. Evolution of 3D solar wind structure during cycles 22 and 23 International conference

    SCOSTEP Syposium 2010 

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    Event date: 2010.7

    Language:English   Presentation type:Oral presentation (invited, special)  

  45. サイクル22,23における太陽風速度分布の長期変動

    徳丸 宗利, 小島 正宜, 藤木 謙一, 伊集 朝哉

    2010年地球惑星科学関連学会合同大会 

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    Event date: 2010.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  46. 太陽風構造の長期変動と現太陽活動極小期の特色

    平成21年度太陽圏シンポジウム 

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    Event date: 2010.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  47. Global Observations of Evolving 3D Solar Wind Structure International conference

    3rd Hinode Scientific Meeting 

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    Event date: 2009.12

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  48. 太陽圏イメージング装置の開発

    徳丸宗利、藤木謙一、伊藤大晃、伊集朝哉 、小島正宜

    日本天文学会2009年秋季年会 

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    Event date: 2009.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  49. Propagation of coronal mass ejections in the interplanetary medium International conference

    AOGS2009 

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    Event date: 2009.8

    Language:English   Presentation type:Oral presentation (invited, special)  

  50. Solar Mass Ejection Imager (SMEI) 3D-reconstruction of the inner heliosphere International conference

    Jackson, B.V., P.P. Hick, A. Buffington, M.M. Bisi, J.M. Clover, and M. Tokumaru 

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    Event date: 2009.8

    Language:English   Presentation type:Oral presentation (invited, special)  

  51. 太陽圏イメージング装置(SWIFT)による初期観測

    徳丸宗利、小島正宜、藤木謙一、伊藤晃大、伊集朝哉

    2009年地球惑星科学関連学会合同大会 

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    Event date: 2009.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  52. 現太陽黒点極小期において観測された特異な太陽風構造

    徳丸宗利

    H20年度太陽圏シンポジウム 

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    Event date: 2009.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  53. Unusual solar wind structure observed during the 2008 sunspot minimum International conference

    2008 AGU Fall Meeting 

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    Event date: 2008.12

    Language:English   Presentation type:Poster presentation  

  54. SKA/LoFARが切り開く新しい宇宙天気研究

    徳丸宗利

    SKAワークショップ08 ~SKAに向けたサイエンスと技術開発~ 

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    Event date: 2008.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  55. 2008太陽黒点極小期において観測された特異な太陽風構造

    第124回地球電磁気・地球惑星圏学会講演会 

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    Event date: 2008.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  56. Relation between Loop-Shaped Interplanetary Disturbances and the Magnetic Flux Rope International conference

    AOGS 2008 

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    Event date: 2008.6

    Language:English   Presentation type:Oral presentation (invited, special)  

  57. Solar Wind Observations and Space Weather International conference

    The 26th International Symposium on Space Technology and Science (ISTS) 

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    Event date: 2008.6

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  58. 太陽圏イメージング装置(SWIFT)の開発

    徳丸宗利、小島正宜、藤木謙一、伊藤大晃

    2008年地球惑星科学関連学会合同大会 

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    Event date: 2008.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  59. 太陽圏・太陽風研究とSOLAR-Cへの期待

    宇宙放射線シンポジウム 

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    Event date: 2008.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  60. STE研太陽風研究の今後の展望

    平成19年度太陽圏シンポジウム 

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    Event date: 2008.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  61. CME studies from STEL IPS observations International conference

    Toyokawa IPS Workshop 2007 

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    Event date: 2007.10

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  62. Propagation of coronal mass ejections in the interplanetary medium International conference

    International CAWSES Syposium 

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    Event date: 2007.10

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  63. 惑星間空間におけるCMEの伝搬

    徳丸宗利, 小島正宜, 藤木謙一

    第122回地球電磁気・地球惑星圏学会講演会 

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    Event date: 2007.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  64. 内部太陽圏におけるCMEの伝搬-2003年11月2日イベントに対するIPS観測結果

    徳丸宗利, 小島正宜, 藤木謙一, 山下真弘

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    Event date: 2007.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  65. Propagation of coronal mass ejections in the interplanetary medium International conference

    2006 AGU Fall Meeting 

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    Event date: 2006.12

    Language:English   Presentation type:Oral presentation (invited, special)  

  66. 人類の宇宙進出に向けた宇宙天気の研究

    宇宙基地医学研究会シンポジウム(第52回日本宇宙航空環境医学会大会) 

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    Event date: 2006.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  67. ループ状惑星間空間擾乱と磁気ロープとの関係(II)

    第119回地球電磁気・地球惑星圏学会講演会 

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    Event date: 2006.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  68. Global properties of heliospheric disturbances observed by interplanetary scintillation International conference

    International colloquium on Scattering and scintillation in radio astronomy 

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    Event date: 2006.6

    Language:English   Presentation type:Oral presentation (invited, special)  

  69. ループ状惑星間空間擾乱と磁気ロープとの関係

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    Event date: 2006.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  70. 2005年4~12月におけるIPS太陽風データ

    平成17年度第2回STE現象報告会 

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    Event date: 2006.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  71. 太陽加速研究における最近の展開-観測的アプローチより

    太陽圏シンポジウム 

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    Event date: 2006.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  72. Interplanetary scintillation measurements of a transient solar wind stream associated with the 2003 October 28 full-halo coronal mass ejection International conference

    XXVIIIth General Assembly of International Union of Radio Science (URSI) 

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    Event date: 2005.10

    Language:English   Presentation type:Poster presentation  

  73. 2003年10月28日のhalo CMEに伴うループ状惑星間空間擾乱の起源

    徳丸宗利、小島正宜、藤木謙一、山下真弘

    第118回地球電磁気・地球惑星圏学会講演会 

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    Event date: 2005.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  74. Tracking heliospheric disturbances by interplanetary scintillation International conference

    Joint STEL-WISER Workshop on Nonlinear Dynamics of Earth, Oceans and Space (EOS2005) 

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    Event date: 2005.9

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  75. 2004年11月3-11日におけるCMEの惑星間空間シンチレーション観測

    徳丸宗利、小島正宜、藤木謙一、山下真弘

    2005年地球惑星科学関連学会合同大会 

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    Event date: 2005.5

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  76. 宇宙の天気をかき乱す太陽の爆風

    徳丸宗利

    2005年地球惑星科学関連学会合同大会 

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    Event date: 2005.5

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  77. Propagation of coronal mass ejections in the interplanetary medium

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    Event date: 2005.4

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  78. 2004年4~12月におけるIPS太陽風データ

    徳丸宗利

    平成16年度第2回STE現象報告会 

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    Event date: 2005.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  79. Three-dimensional structure of compound interplanetary transients associated with 27-28 May 2003 coronal mass ejections International conference

    AGU 2004 fall meeting 

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    Event date: 2004.12

    Language:English   Presentation type:Oral presentation (invited, special)  

  80. 太陽風観測用新アンテナ計画

    徳丸宗利、小島正宜、藤木謙一、

    第5回宇宙天気/気候シンポジウム 

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    Event date: 2004.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  81. 太陽圏と宇宙天気

    徳丸宗利

    、第116回地球電磁気・地球惑星圏学会講演会 

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    Event date: 2004.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  82. Reconstructed global feature of the interplanetary disturbance for the full-halo coronal mass ejection event on 1999 September 20 International conference

    35th COSPAR Scientific Assembly 

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    Event date: 2004.7

    Language:English   Presentation type:Oral presentation (general)  

  83. Study of coronal mass ejection from interplanetary scintillation measurements International conference

    CAWSES Kickoff Meeting 

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    Event date: 2004.6

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  84. 2003年10月28日X17フレア/CMEイベントに伴う惑星間空間擾乱のIPS観測

    徳丸宗利、小島正宜、藤木謙一、山下真弘、馬場大介

    地球惑星科学関連学会2004年合同大会 

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    Event date: 2004.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  85. IPS太陽風データベース作成の現状と今後

    徳丸宗利

    STE研研究集会「第8回太陽地球環境研究のコンピューティング」 

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    Event date: 2004.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  86. ジオスペース研究センター プロジェクト1:CMEの素過程の研究

    徳丸宗利

    STE研研究集会「第8回太陽地球環境研究のコンピューティング」 

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    Event date: 2004.2

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  87. Three-dimensional structure of halo-shaped interplanetary disturbances identified from radio scintillation observations International conference

    IUGG2003 

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    Event date: 2003.6

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  88. Radio scintillation imaging observations of interplanetary disturbances associated with the July 14, 2000 event International conference

    AGU 2001 Fall meeting 

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    Event date: 2001.12

    Language:English   Presentation type:Oral presentation (invited, special)  

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KAKENHI (Grants-in-Aid for Scientific Research) 3

  1. 惑星間空間シンチレーション観測による太陽風加速と微細な密度ゆらぎとの関連性の解明

    Grant number:21K03640  2021.4 - 2024.3

    徳丸 宗利

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    Authorship:Principal investigator 

    Grant amount:\4030000 ( Direct Cost: \3100000 、 Indirect Cost:\930000 )

  2. Study of structural variation of the global heliosphere associated with the peculiar solar dynamo activity

    Grant number:25247079  2013.4 - 2018.3

    Tokumaru Munetoshi

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    Authorship:Principal investigator 

    Grant amount:\45760000 ( Direct Cost: \35200000 、 Indirect Cost:\10560000 )

    We carried out interplanetary scintillation measurements using the improved multi-station system of the Nagoya University in order to elucidate the global distribution of the solar wind and its evolution during the Solar Cycle 24 associated with extremely weak activities. As the result, we find that the occurrence of the very slow (< 350 km/s) solar wind, whose density is as low as the fast wind, increases distinctly in this cycle, and that the relation between the speed and either the open field areas or the magnetic flux expansion factor does not show any clear response to the solar activity. These facts suggest that the mass supply or energy injection rate from the corona decreases in association with a marked decline of the solar activity, and the fact that this effect is most prominent for the very slow wind provides an important clue to the solar wind acceleration.

  3. 惑星間空間におけるCMEの3次元構造の研究

    2004.4 - 2008.3

    科学研究費補助金  基盤研究(B),課題番号:16340147

    徳丸宗利

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    Authorship:Principal investigator 

 

Teaching Experience (On-campus) 14

  1. 惑星間空間物理学

    2020

  2. 先端物理学基礎Ⅲ

    2020

  3. 太陽圏プラズマ物理学講究1

    2020

  4. 太陽圏プラズマ物理学講究3

    2020

  5. 物理学概論

    2020

  6. 太陽地球系科学

    2020

  7. 惑星間空間物理学

    2019

  8. 太陽地球系科学

    2019

  9. 物理学概論

    2019

  10. 先端物理学基礎Ⅲ

    2019

  11. heliospheric Plasma Physics Seminar 1

    2019

  12. heliospheric Plasma Physics Seminar 3

    2019

  13. heliospheric Plasma Physics Seminar 4

    2017

  14. heliospheric Plasma Physics Seminar 2

    2017

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Teaching Experience (Off-campus) 1

  1. 太陽圏物理学

    2018.12 Kyushu University)

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    Level:Postgraduate  Country:Japan

 

Social Contribution 1

  1. 体験学習

    Role(s):Lecturer

    長野県松本県ヶ丘高校  木曽観測所における講義「太陽と地球をつなぐ宇宙の風」と電波望遠鏡の見学・解説  2020.12