Updated on 2022/03/28

写真a

 
MATSUI Hitoshi
 
Organization
Graduate School of Environmental Studies Department of Earth and Environmental Sciences Climate Science Associate professor
Graduate School
Graduate School of Environmental Studies
Undergraduate School
School of Science Department of Earth and Planetary Science
Title
Associate professor

Degree 1

  1. Doctor (Science) ( 2009.3   The University of Tokyo ) 

Research Interests 4

  1. Three-dimensional model

  2. Climate Change

  3. Atmospheric Environment

  4. Aerosol

Research Areas 2

  1. Environmental Science/Agriculture Science / Environmental dynamic analysis

  2. Natural Science / Atmospheric and hydrospheric sciences

Current Research Project and SDGs 5

  1. エアロゾルの生成・変質・除去過程に関する研究

  2. エアロゾル・大気化学に関する数値モデル開発

  3. 都市域における大気汚染に関する研究

  4. 地球規模でのエアロゾルと気候(放射・雲・雪氷・生態系)との相互作用に関する研究

  5. エアロゾルの半球規模の輸送過程に関する研究

Research History 2

  1. Nagoya University   Graduate School of Environmental Studies Department of Earth and Environmental Sciences Climate Science   Associate professor

    2020.4

  2. Nagoya University   Graduate School of Environmental Studies Department of Earth and Environmental Sciences Global Environmental Variation   Assistant Professor

    2015.4 - 2020.3

Professional Memberships 4

  1. 日本気象学会

  2. 日本大気化学会

  3. 日本地球惑星科学連合

  4. American Geophysical Union

Awards 2

  1. 日本気象学会正野賞

    2014.11   日本気象学会  

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

  2. 日本大気化学会奨励賞

    2014.11   日本大気化学会  

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

 

Papers 66

  1. Soluble salts in deserts as a source of sulfate aerosols in an Antarctic ice core during the last glacial period Reviewed

    Uemura R., Masaka K., Iizuka Y., Hirabayashi M., Matsui H., Matsumoto R., Uemura M., Fujita K., Motoyama H.

    Earth and Planetary Science Letters   Vol. 578   2022.1

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

    DOI: 10.1016/j.epsl.2021.117299

    Scopus

  2. Arctic black carbon during PAMARCMiP 2018 and previous aircraft experiments in spring Reviewed International coauthorship

    Ohata Sho, Koike Makoto, Yoshida Atsushi, Moteki Nobuhiro, Adachi Kouji, Oshima Naga, Matsui Hitoshi, Eppers Oliver, Bozem Heiko, Zanatta Marco, Herber Andreas B.

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 21 ( 20 ) page: 15861 - 15881   2021.11

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

    DOI: 10.5194/acp-21-15861-2021

    Web of Science

    Scopus

  3. High sensitivity of Asian dust emission, transport, and climate impacts to threshold friction velocity Reviewed

    Kawai, K., *H. Matsui, R. Kimura, and M. Shinoda

    Scientific Online Letters on the Atmosphere     2021.11

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

  4. Aerosol absorption in global models from AeroCom phase III Reviewed International coauthorship

    Sand Maria, Samset Bjorn H., Myhre Gunnar, Gliss Jonas, Bauer Susanne E., Bian Huisheng, Chin Mian, Checa-Garcia Ramiro, Ginoux Paul, Kipling Zak, Kirkevag Alf, Kokkola Harri, Le Sager Philippe, Lund Marianne T., Matsui Hitoshi, van Noije Twan, Olivie Dirk J. L., Remy Samuel, Schulz Michael, Stier Philip, Stjern Camilla W., Takemura Toshihiko, Tsigaridis Kostas, Tsyro Svetlana G., Watson-Parris Duncan

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 21 ( 20 ) page: 15929 - 15947   2021.10

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

    DOI: 10.5194/acp-21-15929-2021

    Web of Science

    Scopus

  5. Importance of supersaturation in Arctic black carbon simulations Reviewed International journal

    Matsui H., Liu M.

    Journal of Climate   Vol. 34 ( 19 ) page: 7843 - 7856   2021.10

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

    DOI: 10.1175/JCLI-D-20-0994.1

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  6. Understanding Top-of-Atmosphere Flux Bias in the AeroCom Phase III Models: A Clear-Sky Perspective Reviewed International coauthorship International journal

    Su Wenying, Liang Lusheng, Myhre Gunnar, Thorsen Tyler J., Loeb Norman G., Schuster Gregory L., Ginoux Paul, Paulot Fabien, Neubauer David, Checa-Garcia Ramiro, Matsui Hitoshi, Tsigaridis Kostas, Skeie Ragnhild B., Takemura Toshihiko, Bauer Susanne E., Schulz Michael

    JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS   Vol. 13 ( 9 )   2021.9

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

    DOI: 10.1029/2021MS002584

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    Scopus

  7. High Potential of Asian Dust to Act as Ice Nucleating Particles in Mixed-Phase Clouds Simulated With a Global Aerosol-Climate Model Reviewed International journal

    Kawai Kei, Matsui Hitoshi, Tobo Yutaka

    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   Vol. 126 ( 12 )   2021.6

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

    DOI: 10.1029/2020JD034263

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  8. Seasonal Variation of Wet Deposition of Black Carbon at Ny-Alesund, Svalbard Reviewed International coauthorship International journal

    Mori Tatsuhiro, Kondo Yutaka, Ohata Sho, Goto-Azuma Kumiko, Fukuda Kaori, Ogawa-Tsukagawa Yoshimi, Moteki Nobuhiro, Yoshida Atsushi, Koike Makoto, Sinha P. R., Oshima Naga, Matsui Hitoshi, Tobo Yutaka, Yabuki Masanori, Aas Wenche

    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   Vol. 126 ( 12 )   2021.6

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

    DOI: 10.1029/2020JD034110

    Web of Science

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  9. Aerosol radiative forcings induced by substantial changes in anthropogenic emissions in China from 2008 to 2016 Reviewed International journal

    Liu Mingxu, Matsui Hitoshi

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 21 ( 8 ) page: 5965 - 5982   2021.4

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.5194/acp-21-5965-2021

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    Scopus

  10. Constraining the atmospheric limb of the plastic cycle Reviewed International coauthorship International journal

    Brahney Janice, Mahowald Natalie, Prank Marje, Cornwell Gavin, Klimont Zbigniew, Matsui Hitoshi, Prather Kimberly Ann

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   Vol. 118 ( 16 )   2021.4

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

    DOI: 10.1073/pnas.2020719118

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  11. Global-scale constraints on light-absorbing anthropogenic iron oxide aerosols Reviewed International coauthorship International journal

    Lamb, K. D., Matsui, H., Katich, J. M., Perring, A. E., Spackman, J. R., Weinzierl, B., Dollner, M., Schwarz, J. P.

    NPJ CLIMATE AND ATMOSPHERIC SCIENCE   Vol. 4 ( 1 )   2021.3

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

    DOI: 10.1038/s41612-021-00171-0

    Web of Science

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  12. Studies on Arctic aerosols and clouds during the ArCS project Reviewed International journal

    Koike M., Goto-Azuma K., Kondo, Y. Matsui, H., Mori, T., Moteki, N., Ohata, S., Okamoto, H., Oshima, N., Sato, K., Takano, T., Tobo, Y., Ukita, J., Yoshida, A.

    Polar Science   Vol. 27   2021.3

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

    DOI: 10.1016/j.polar.2020.100621

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  13. Improved Simulations of Global Black Carbon Distributions by Modifying Wet Scavenging Processes in Convective and Mixed-Phase Clouds Reviewed International journal

    Liu Mingxu, Matsui Hitoshi

    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   Vol. 126 ( 3 )   2021.2

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1029/2020JD033890

    Web of Science

    Scopus

  14. Aerosol absorption in global models from AeroCom Phase III International coauthorship International journal

    Sand, M., Samset, B. H., Myhre, G., Gliss, J., Bauer, S. E., Bian, H., Chin, M., Checa-Garcia, R., Ginoux, P., Kipling, Z., Kirkevag, A., Kokkola, H., Le Sagar, P., Lund, M. T., Matsui, H., van Noije, T., Remy, S., Schulz, M., Stier, P., Stjern, C. W., Takemura, T., Tsigaridis, K., Tsyro, S. G., Watson-Parris, D.

    ATMOSPHERIC CHEMISTRY AND PHYSICS DISCUSSIONS     2021.2

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

  15. AeroCom phase III multi-model evaluation of the aerosol life cycle and optical properties using ground- and space-based remote sensing as well as surface in situ observations Reviewed International coauthorship International journal

    Gliss Jonas, Mortier Augustin, Schulz Michael, Andrews Elisabeth, Balkanski Yves, Bauer Susanne E., Benedictow Anna M. K., Bian Huisheng, Checa-Garcia Ramiro, Chin Mian, Ginoux Paul, Griesfeller Jan J., Heckel Andreas, Kipling Zak, Kirkevag Alf, Kokkola Harri, Laj Paolo, Le Sager Philippe, Lund Marianne Tronstad, Myhre Cathrine Lund, Matsui Hitoshi, Myhre Gunnar, Neubauer David, van Noije Twan, North Peter, Olivi Dirk J. L., Remy Samuel, Sogacheva Larisa, Takemura Toshihiko, Tsigaridis Kostas, Tsyro Svetlana G.

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 21 ( 1 ) page: 87 - 128   2021.1

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

    DOI: 10.5194/acp-21-87-2021

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  16. Resolving aerosol mixing state increases accuracy of black carbon respiratory deposition estimates Reviewed International journal

    Ching Joseph, Kajino Mizuo, Matsui Hitoshi

    One Earth   Vol. 3 ( 6 ) page: 763 - 776   2020.12

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

    DOI: 10.1016/j.oneear.2020.11.004

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  17. Seasonal Trends of Atmospheric Ice Nucleating Particles Over Tokyo Reviewed International journal

    Tobo Yutaka, Uetake Jun, Matsui Hitoshi, Moteki Nobuhiro, Uji Yasushi, Iwamoto Yoko, Miura Kazuhiko, Misumi Ryohei

    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   Vol. 125 ( 23 )   2020.12

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

    DOI: 10.1029/2020JD033658

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  18. Black Carbon Absorption Efficiency Under Preindustrial and Present-Day Conditions Simulated by a Size- and Mixing-State-Resolved Global Aerosol Model Reviewed International journal

    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   Vol. 125 ( 18 )   2020.9

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

    DOI: 10.1029/2019JD032316

    Web of Science

    Scopus

  19. Recent (1980 to 2015) Trends and Variability in Daily-to-Interannual Soluble Iron Deposition from Dust, Fire, and Anthropogenic Sources Reviewed International coauthorship International journal

    Hamilton Douglas S., Scanza Rachel A., Rathod Sagar D., Bond Tami C., Kok Jasper F., Li Longlei, Matsui Hitoshi, Mahowald Natalie M.

    GEOPHYSICAL RESEARCH LETTERS   Vol. 47 ( 17 )   2020.9

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

    DOI: 10.1029/2020GL089688

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  20. A global model-measurement evaluation of particle light scattering coefficients at elevated relative humidity Reviewed International coauthorship International journal

    Burgos Maria A., Andrews Elisabeth, Titos Gloria, Benedetti Angela, Bian Huisheng, Buchard Virginie, Curci Gabriele, Kipling Zak, Kirkevag Alf, Kokkola Harri, Laakso Anton, Letertre-Danczak Julie, Lund Marianne T., Matsui Hitoshi, Myhre Gunnar, Randles Cynthia, Schulz Michael, van Noije Twan, Zhang Kai, Alados-Arboledas Lucas, Baltensperger Urs, Jefferson Anne, Sherman James, Sun Junying, Weingartner Ernest, Zieger Paul

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 20 ( 17 ) page: 10231 - 10258   2020.9

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

    DOI: 10.5194/acp-20-10231-2020

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  21. High Sensitivity of Arctic Black Carbon Radiative Effects to Subgrid Vertical Velocity in Aerosol Activation Reviewed International journal

    Matsui Hitoshi, Moteki Nobuhiro

    GEOPHYSICAL RESEARCH LETTERS   Vol. 47 ( 16 )   2020.8

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

    DOI: 10.1029/2020GL088978

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  22. Seasonal Variation of Wet Deposition of Black Carbon in Arctic Alaska Reviewed International coauthorship International journal

    Mori T., Kondo Y., Ohata S., Zhao Y., Sinha P. R., Oshima N., Matsui H., Moteki N., Koike M.

    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   Vol. 125 ( 16 )   2020.8

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

    DOI: 10.1029/2019JD032240

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  23. Abundances and Microphysical Properties of Light-Absorbing Iron Oxide and Black Carbon Aerosols Over East Asia and the Arctic Reviewed International journal

    Yoshida Atsushi, Moteki Nobuhiro, Ohata Sho, Mori Tatsuhiro, Koike Makoto, Kondo Yutaka, Matsui Hitoshi, Oshima Naga, Takami Akinori, Kita Kazuyuki

    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   Vol. 125 ( 15 )   2020.8

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

    DOI: 10.1029/2019JD032301

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  24. 降水雲の過飽和度を観測から制約する:エアロゾル空間分布の予測のために Reviewed

    茂木信宏、森樹大、松井仁志、大畑祥

    大気化学研究   Vol. 41   page: 041A03   2019.7

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

  25. Evaluation of global simulations of aerosol particle and cloud condensation nuclei number, with implications for cloud droplet formation Reviewed International coauthorship International journal

    Fanourgakis George S, Kanakidou Maria, Nenes Athanasios, Bauer Susanne E, Bergman Tommi, Carslaw Ken S, Grini Alf, Hamilton Douglas S, Johnson Jill S, Karydis Vlassis A, Kirkevag Alf, Kodros John K, Lohmann Ulrike, Luo Gan, Makkonen Risto, Matsui Hitoshi, Neubauer David, Pierce Jeffrey R, Schmale Julia, Stier Philip, Tsigaridis Kostas, van Noije Twan, Wang Hailong, Watson-Parris Duncan, Westervelt Daniel M, Yang Yang, Yoshioka Masaru, Daskalakis Nikos, Decesari Stefano, Gysel-Beer Marti

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 19 ( 13 ) page: 8591 - 8617   2019.7

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

    DOI: 10.5194/acp-19-8591-2019

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    PubMed

  26. Observational constraint of in-cloud supersaturation for simulations of aerosol rainout in atmospheric models Reviewed International journal

    Moteki Nobuhiro, Mori Tatsuhiro, Matsui Hitoshi, Ohata Sho

    NPJ CLIMATE AND ATMOSPHERIC SCIENCE   Vol. 2 ( 1 )   2019.2

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

    DOI: 10.1038/s41612-019-0063-y

    Web of Science

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  27. Impacts of New Particle Formation on Short-term Meteorology and Air Quality as Determined by the NPF-explicit WRF-Chem in the Midwestern United States Reviewed International coauthorship International journal

    Dong Can, Matsui Hitoshi, Spak Scott, Kalafut-Pettibone Alicia, Stanier Charles

    AEROSOL AND AIR QUALITY RESEARCH   Vol. 19 ( 2 ) page: 204 - 220   2019.2

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

    DOI: 10.4209/aaqr.2018.05.0163

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  28. Black carbon radiative effects highly sensitive to emitted particle size when resolving mixing-state diversity. Reviewed International coauthorship International journal

    Matsui H, Hamilton DS, Mahowald NM

    Nature communications   Vol. 9 ( 1 ) page: 3446   2018.8

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

    DOI: 10.1038/s41467-018-05635-1

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    PubMed

  29. New particle formation leads to cloud dimming Reviewed International coauthorship International journal

    Ryan C. Sullivan, Paola Crippa, Hitoshi Matsui, L. Ruby Leung, Chun Zhao, Abhinav Thota and Sara C. Pryor

    NPJ CLIMATE AND ATMOSPHERIC SCIENCE   Vol. 1   page: 9   2018.5

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

    DOI: doi:10.1038/s41612-018-0019-7

  30. Impacts of Aerosol Dry Deposition on Black Carbon Spatial Distributions and Radiative Effects in the Community Atmosphere Model CAM5 Reviewed International coauthorship International journal

    Mingxuan Wu, Xiaohong Liu, Leiming Zhang, Chenglai Wu, Zheng Lu, Po-Lun Ma, Hailong Wang, Simone Tilmes, Natalie Mahowald, Hitoshi Matsui, Richard C. Easter

    Journal of Advances in Modeling Earth Systems   Vol. 10 ( 5 ) page: 1150 - 1171   2018.5

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Blackwell Publishing Ltd  

    Dry deposition is an important process affecting the lifetime and spatial distributions of atmospheric aerosols. Black carbon (BC) plays an important role in the Earth's climate, but is subject to large bias in remote regions in model simulations. In this study, to improve the BC simulations, the scheme of Petroff and Zhang () (PZ10) is implemented into the Community Atmospheric Model version 5 (CAM5), and model simulations using PZ10 are compared with the one using the default scheme of Zhang et al. () (Z01) and observations. The PZ10 scheme predicts much lower dry deposition velocity (Vd) than Z01 for fine particles in Aitken, primary carbon, and accumulation modes, resulting in 73.0% lower of global mean BC dry deposition fluxes and 23.2% higher of global mean BC column burdens. CAM5 with PZ10 increases modeled BC concentrations at all altitudes and latitudes compared to Z01, which improves the agreement with observations of BC profiles in the lower troposphere in the Arctic. It also improves the simulation of surface BC concentrations in high-latitudes remote regions and its seasonality in the Arctic. The global annual mean radiative effects due to aerosol-radiation interactions (REari) and aerosol-cloud interactions (REaci) of BC from the CAM5 experiment using Z01 are 0.61 ± 0.007 and −0.11 ± 0.02 W m−2, respectively, compared to slightly larger REari (0.75 ± 0.01 W m−2) and REaci (–0.14 ± 0.02 W m−2) from CAM5 using PZ10. The results suggest that Brownian diffusion efficiency is a key factor for the predictions of Vd, which requires better representation in the global climate models.

    DOI: 10.1029/2017MS001219

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  31. Anthropogenic combustion iron as a complex climate forcer Reviewed International coauthorship International journal

    Matsui, H., N. M. Mahowald, N. Moteki, D. S. Hamilton, S. Ohata, A. Yoshida, M. Koike, R. A. Scanza, and M. G. Flanner

    NATURE COMMUNICATIONS   Vol. 9   page: 1593   2018.4

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

    DOI: 10.1038/s41467-018-03997-0

  32. New particle formation leads to cloud dimming Reviewed International coauthorship International journal

    Ryan C. Sullivan, Paola Crippa, Hitoshi Matsui, L. Ruby Leung, Chun Zhao, Abhinav Thota, Sara C. Pryor

    npj Climate and Atmospheric Science   Vol. 1 ( 1 ) page: 9   2018

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Nature  

    DOI: 10.1038/s41612-018-0019-7

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  33. Observed and modeled mass concentrations of organic aerosols and PM2.5 at three remote sites around the East China Sea: Roles of chemical aging Reviewed

    Kanaya, Y., H. Matsui, F. Taketani, X. Pan, Y. Komazaki, Z. Wang, L. Chang, D. Kang, M. Choi, S.-Y. Kim, C.-H. Kang, A. Takami, H. Tanimoto, K. Ikeda, and K. Yamaji

    AEROSOL AND AIR QUALITY RESEARCH   Vol. 17 ( 12 ) page: 3091-3105   2017.12

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

    DOI: 10.4209/aaqr.2016.12.0573

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  34. Development of a global aerosol model using a two-dimensional sectional method: 2. Evaluation and sensitivity simulations Reviewed International coauthorship International journal

    H. Matsui, N. Mahowald

    JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS   Vol. 9 ( 4 ) page: 1887 - 1920   2017.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:AMER GEOPHYSICAL UNION  

    Global aerosol simulations are conducted by using the Community Atmosphere Model version 5 with the Aerosol Two-dimensional bin module for foRmation and Aging Simulation version 2 (CAM5-chem/ ATRAS2) which was developed in part 1. The model uses a two-dimensional (2-D) section representation with 12 size bins from 1 nm to 10 lm and 8 black carbon (BC) mixing state bins, and it can calculate detailed aerosol processes and their interactions with radiation and clouds. The simulations have similar or better agreement with aerosol observations (e.g., aerosol optical depth, absorption aerosol optical depth (AAOD), aerosol number concentrations, mass concentrations of each species) compared with the simulations using the Modal Aerosol Model with three modes. Sensitivity simulations show that global mean AAOD is reduced by 15% by resolving BC mixing state as a result of two competing effects (optical and lifetime effects). AAOD is reduced by 10-50% at low and midlatitudes in the 2-D sectional simulation because BC absorption enhancement by coating species is reduced by resolving pure BC, thinly coated BC, and BC-free particles in the model (optical effect). In contrast, AAOD is enhanced by 5-30% at high-latitudes because BC concentrations are enhanced by 40-200% over the regions by resolving less CCN active particles (lifetime effect). The simulations also suggest a model which resolves more than 3 BC categories (including BC-free particles) is desirable to calculate the optical and lifetime effects accurately. The complexity of aerosol representation is shown to be especially important for simulations of BC and CCN concentrations and AAOD.

    DOI: 10.1002/2017MS000937

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  35. Development of a global aerosol model using a two-dimensional sectional method: 1. Model design Reviewed International journal

    H. Matsui

    Journal of Advances in Modeling Earth Systems   Vol. 9 ( 4 ) page: 1921 - 1947   2017.8

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    Authorship:Lead author, Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Blackwell Publishing Ltd  

    This study develops an aerosol module, the Aerosol Two-dimensional bin module for foRmation and Aging Simulation version 2 (ATRAS2), and implements the module into a global climate model, Community Atmosphere Model. The ATRAS2 module uses a two-dimensional (2-D) sectional representation with 12 size bins for particles from 1 nm to 10 μm in dry diameter and 8 black carbon (BC) mixing state bins. The module can explicitly calculate the enhancement of absorption and cloud condensation nuclei activity of BC-containing particles by aging processes. The ATRAS2 module is an extension of a 2-D sectional aerosol module ATRAS used in our previous studies within a framework of a regional three-dimensional model. Compared with ATRAS, the computational cost of the aerosol module is reduced by more than a factor of 10 by simplifying the treatment of aerosol processes and 2-D sectional representation, while maintaining good accuracy of aerosol parameters in the simulations. Aerosol processes are simplified for condensation of sulfate, ammonium, and nitrate, organic aerosol formation, coagulation, and new particle formation processes, and box model simulations show that these simplifications do not substantially change the predicted aerosol number and mass concentrations and their mixing states. The 2-D sectional representation is simplified (the number of advected species is reduced) primarily by the treatment of chemical compositions using two interactive bin representations. The simplifications do not change the accuracy of global aerosol simulations. In part 2, comparisons with measurements and the results focused on aerosol processes such as BC aging processes are shown.

    DOI: 10.1002/2017MS000936

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  36. Enhancement of aerosol responses to changes in emissions over East Asia by gas-oxidant-aerosol coupling and detailed aerosol processes Reviewed

    Matsui, H. and M. Koike

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 121   page: 7161-7171   2016.6

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

    DOI: 10.1002/2015JD024671

  37. Black carbon simulations using a size- and mixing-state-resolved three-dimensional model: 1. Radiative effects and their uncertainties Reviewed

    Matsui, H.

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 121   page: 1793-1807   2016.2

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

    DOI: 10.1002/2015JD023998

  38. Black carbon simulations using a size- and mixing-state-resolved three-dimensional model: 2. Aging timescale and its impact over East Asia Reviewed

    Matsui, H.

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 121   page: 1808-1821   2016.2

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

    DOI: 10.1002/2015JD023999

  39. Modeling particle nucleation and growth over northern California during the 2010 CARES campaign Reviewed

    Lupascu, A., R. Easter, R. Zaveri, M. Shrivastava, M. Pekour, J. Tomlinson, Q. Yang, H. Matsui, A. Hodzic, Q. Zhang, and J. D. Fast

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 15   page: 12283-12313   2015.11

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

    DOI: 10.5194/acp-15-12283-2015

  40. エアロゾルの数・粒径・混合状態を予測する新世代モデルの開発と検証 Reviewed

    松井 仁志

    天気   Vol. 62 ( 7 ) page: 569-580   2015.7

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  41. An evaluation of simulated particulate sulfate over East Asia through global model intercomparison Reviewed

    Goto, D., T. Nakajima, T. Dai, T. Takemura, M. Kajino, H. Matsui, A. Takami, S. Hatakeyama, N. Sugimoto, A. Shimizu, and T. Ohara

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 120 ( 12 ) page: 6247-6270   2015.6

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    DOI: 10.1002/2014JD021693

    Web of Science

  42. Modeling ultrafine particle growth at a pine forest site influenced by anthropogenic pollution during BEACHON-RoMBAS 2011 Reviewed

    Cui, Y. Y., A. Hodzic, J. N. Smith, J. Ortega, J. Brioude, H. Matsui, E. J. T. Levin, A. Turnipseed, P. Winkler, and B. de Foy

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 14   page: 11011-11029   2014.10

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    DOI: 10.5194/acp-14-11011-2014

  43. Development of an aerosol microphysical module: Aerosol Two-dimensional bin module for foRmation and Aging Simulation (ATRAS) Reviewed

    Matsui, H., M. Koike, Y. Kondo, J. D. Fast, and M. Takigawa

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 14   page: 10315-10331   2014.9

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    DOI: 10.5194/acp-14-10315-2014

  44. Volatility basis-set approach simulation of organic aerosol formation in East Asia: implications for anthropogenic-biogenic interaction and controllable amounts Reviewed

    Matsui, H., M. Koike, Y. Kondo, A. Takami, J. D. Fast, Y. Kanaya, and M. Takigawa

    ATMOSPHERIC CHEMISTRY AND PHYSICS   Vol. 14   page: 9513-9535   2014.9

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    DOI: 10.5194/acp-14-9513-2014

  45. Wet deposition of black carbon at a remote site in the East China Sea Reviewed

    Mori, T., Y. Kondo, S. Ohata, N. Moteki, H. Matsui, N. Oshima, and A. Iwasaki

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 119   page: 10485-10498   2014.9

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    DOI: 10.1002/2014JD022103

  46. 次世代エアロゾルモデルの開発と検証:「数・粒径・混合状態」の予測への挑戦 Reviewed

    松井 仁志

    低温科学   Vol. 72   page: 49-64   2014.4

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  47. Case study of absorption aerosol optical depth closure of black carbon over the East China Sea Reviewed

    Koike, M., N. Moteki, P. Khatri, T. Takamura, N. Takegawa, Y. Kondo, H. Hashioka, H. Matsui, A. Shimizu, and N. Sugimoto

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 119   page: 122-136   2014.1

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    DOI: 10.1002/2013JD020163

  48. Vertical transport mechanisms of black carbon over East Asia in spring during the A-FORCE campaign Reviewed

    Oshima, N., M. Koike, Y. Kondo, H. Nakamura, N. Moteki, H. Matsui, N. Takegawa, and K. Kita

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 118   page: 13175-13198   2013.12

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    DOI: 10.1002/2013JD020262

  49. Spatial and temporal variations of new particle formation in East Asia using an NPF-explicit WRF-chem model: North-south contrast in new particle formation frequency Reviewed

    Matsui, H., M. Koike, N. Takegawa, Y. Kondo, A. Takami, T. Takamura, S. Yoon, S.-W. Kim, H.-C. Lim, and J. D. Fast

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 118   page: 11647-11663   2013.10

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    DOI: 10.1002/jgrd.50821

  50. Seasonal variations of Asian black carbon outflow to the Pacific: Contribution from anthropogenic sources in China and biomass burning sources in Siberia and Southeast Asia Reviewed

    Matsui, H., M. Koike, Y. Kondo, N. Oshima, N. Moteki, Y. Kanaya, A. Takami, and M. Irwin

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 118   page: 9948-9967   2013.9

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    DOI: 10.1002/jgrd.50702

  51. Seasonal variations of black carbon observed at the remotemountain site Happo in Japan Reviewed

    Liu, X., Y. Kondo, K. Ram, H. Matsui, K. Nakagomi, T. Ikeda, N. Oshima, R. L. Verma, N. Takegawa, M. Koike, and M. Kajino

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 118   page: 3709-3722   2013.5

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    DOI: 10.1002/jgrd.50317

  52. Development and validation of a black carbon mixing state resolved three-dimensional model: Aging processes and radiative impact Reviewed

    Matsui, H., M. Koike, Y. Kondo, N. Moteki, J. D. Fast, and R. A. Zaveri

    JOURNAL OF GEOPHYSICAL RESEARCH ATMOSPHERES   Vol. 118   page: 2304-2326   2013.3

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    DOI: 10.1029/2012JD018446

  53. Measurements of regional-scale aerosol impacts on cloud microphysics over the East China Sea: Possible influences of warm sea surface temperature over the Kuroshio ocean current Reviewed

    Koike, M., N. Takegawa, N. Moteki, Y. Kondo, H. Nakamura, K. Kita, H. Matsui, N. Oshima, M. Kajino, and T. Y. Nakajima

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 117   page: D17205   2012.9

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    DOI: 10.1029/2011JD017324

  54. Size dependence of wet removal of black carbon aerosols during transport from the boundary layer to the free troposphere Reviewed

    Moteki, N., Y. Kondo, N. Oshima, N. Takegawa, M. Koike, K. Kita, H. Matsui, and M. Kajino

    GEOPHYSICAL RESEARCH LETTERS   Vol. 39   page: L13802   2012.7

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    DOI: 10.1029/2012GL052034

  55. New source and process apportionment method using a three-dimensional chemical transport model: Process, age, and source region chasing algorithm (PASCAL) Reviewed

    Matsui, H. and M. Koike

    ATMOSPHERIC ENVIRONMENT   Vol. 55   page: 399-409   2012.2

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    DOI: 10.1016/j.atmosenv.2012.02.080

  56. Wet removal of black carbon in Asian outflow: Aerosol Radiative Forcing in East Asia (A-FORCE) aircraft campaign Reviewed

    Oshima, N., Y. Kondo, N. Moteki, N. Takegawa, M. Koike, K. Kita, H. Matsui, M. Kajino, H. Nakamura, J. S. Jung, and Y. J. Kim

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 117   page: D03204   2012.2

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    DOI: 10.1029/2011JD016552

  57. Seasonal variations of the transport of black carbon and carbon monoxide from the Asian continent to the western Pacific in the boundary layer Reviewed

    Verma, R. L., Y. Kondo, N. Oshima, H. Matsui, K. Kita, L. K. Sahu, S. Kato, Y. Kajii, A. Takami, and T. Miyakawa

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 116   page: D21307   2011.11

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    DOI: 10.1029/2011JD015830

  58. Accumulation-mode aerosol number concentrations in the Arctic during the ARCTAS aircraft campaign: Long-range transport of polluted and clean air from the Asian continent Reviewed

    Matsui, H., Y. Kondo, N. Moteki, N. Takegawa, L. K. Sahu, M. Koike, Y. Zhao, H. E. Fuelberg, W. R. Sessions, G. Diskin, B. E. Anderson, D. R. Blake, A. Wisthaler, M. J. Cubison, and J. L. Jimenez

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 116   page: D20217   2011.10

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    DOI: 10.1029/2011JD016189

  59. Impact of new particle formation on the concentrations of aerosols and cloud condensation nuclei around Beijing Reviewed

    Matsui, H., M. Koike, Y. Kondo, N. Takegawa, A. Wiedensohler, J. D. Fast, and R. A. Zaveri

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 116   page: D19208   2011.10

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    DOI: 10.1029/2011JD016025

  60. Emissions of black carbon, organic, and inorganic aerosols from biomass burning in North America and Asia in 2008 Reviewed

    Kondo, Y., H. Matsui, N. Moteki, L. Sahu, N. Takegawa, M. Kajino, Y. Zhao, M. J. Cubison, J. L. Jimenez, S. Vay, G. S. Diskin, B. Anderson, A. Wisthaler, T. Mikoviny, H. E. Fuelberg, D. R. Blake, G. Huey, A. J. Weinheimer, D. J. Knapp, and W. H. Brune

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 116   page: D08204   2011.4

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    DOI: 10.1029/2010JD015152

  61. Seasonal variation of the transport of black carbon aerosol from the Asian continent to the Arctic during the ARCTAS aircraft campaign Reviewed

    Matsui, H., Y. Kondo, N. Moteki, N. Takegawa, L. K. Sahu, Y. Zhao, H. E. Fuelberg, W. R. Sessions, G. Diskin, D. R. Blake, A. Wisthaler, and M. Koike

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 116   page: D05202   2011.3

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    DOI: 10.1029/2010JD015067

  62. Spatial and temporal variations of aerosols around Beijing in summer 2006: 2. Local and column aerosol optical properties Reviewed

    Matsui, H., M. Koike, Y. Kondo, N. Takegawa, J. D. Fast, U. Pöschl, R. M. Garland, M. O. Andreae, A. Wiedensohler, N. Sugimoto, and T. Zhu

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 115   page: D22207   2010.11

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    DOI: 10.1029/2010JD013895

  63. Formation and transport of aerosols in Tokyo in relation to their physical and chemical properties: A review Reviewed

    Kondo, Y., T. Nobuyuki, H. Matsui, T. Miyakawa, M. Koike, Y. Miyazaki, Y. Kanaya, M. Mochida, M. Kuwata, Y. Morino, and M. Shiraiwa

    JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN   Vol. 88 ( 4 ) page: 597-624   2010.2

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    DOI: 10.2151/jmsj.2010-401

    Web of Science

  64. Spatial and temporal variations of aerosols around Beijing in summer 2006: Model evaluation and source apportionment Reviewed

    Matsui, H., M. Koike, Y. Kondo, N. Takegawa, K. Kita, Y. Miyazaki, M. Hu, S.-Y. Chang, D. R. Blake, J. D. Fast, R. A. Zaveri, D. G. Streets, Q. Zhang, and T. Zhu

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 114   page: D00G13   2009.8

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    DOI: 10.1029/2008JD010906

  65. Secondary organic aerosol formation in urban air: Temporal variations and possible contributions from unidentified hydrocarbons Reviewed

    Matsui, H., M. Koike, N. Takegawa, Y. Kondo, R. J. Griffin, Y. Miyazaki, Y. Yokouchi, and T. Ohara

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 114   page: D04201   2009.2

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    DOI: 10.1029/2008JD010164

  66. Seasonal variation of carbon monoxide in northern Japan: Fourier transform IR measurements and source-labeled model calculations Reviewed

    Koike, M., N. B. Jones, P. I. Palmer, H. Matsui, Y. Zhao, Y. Kondo, Y. Matsumi, and H. Tanimoto

    JOURNAL OF GEOPHYSICAL RESEARCH   Vol. 111   page: D15306   2006.8

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    DOI: 10.1029/2005JD006643

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Presentations 1

  1. Sulfate aerosol composition and flux during 1970's derived from the SE-Dome ice core, Greenland

    Iizuka Yoshinori, Uemura Ryu, Matsui Hitoshi, Oshima Naga, Matoba Sumito

    Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research  2020  The Japanese Society of Snow and Ice / Japan Society for Snow Engineering

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Research Project for Joint Research, Competitive Funding, etc. 4

  1. 地球温暖化に関わる北極ブラックカーボンとダスト粒子の動態と放射効果

    2017.4 - 2020.3

    環境省環境研究総合推進費・環境問題対応型 

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    Grant type:Competitive

  2. エアロゾルの次世代型全球モデルの開発とその気候影響・多圏相互作用に関する研究

    2016.1 - 2018.1

    日本学術振興会海外特別研究員制度 

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    Grant type:Competitive

  3. 北極気候に関わるブラックカーボン等エアロゾルの動態・発生源と雲・放射影響

    2015.4 - 2020.3

    文部科学省環境技術等研究開発推進事業・北極域研究推進プロジェクト(ArCSプロジェクト) 

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    Grant type:Competitive

  4. 地球温暖化に関わるブラックカーボン放射効果の総合的評価

    2014.4 - 2017.3

    環境省環境研究総合推進費・環境問題対応型 

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    Grant type:Competitive

KAKENHI (Grants-in-Aid for Scientific Research) 22

  1. Quantitative evaluation of the three major light-absorbing impurities accelerating glacier ablation

    Grant number:20H00196  2020.4 - 2025.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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  2. 北極におけるエアロゾルの動態と気候影響

    Grant number:20H00638  2020.4 - 2024.3

    科学研究費助成事業  基盤研究(A)

    近藤 豊, 小池 真, 松井 仁志, 大畑 祥, 東 久美子, 森 樹大

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    北極の温暖化には、温室効果の増加に加え、エアロゾルによる放射効果も寄与しているが、その不確定性は大きい。エアロゾルの気候影響の理解には、加熱効果のある光吸収性エアロゾルと、冷却効果のある光散乱性エアロゾルの効果の推定が重要である。本研究では、北極エアロゾルの分布・変動と降水除去過程を高精度観測から明らかにする。また、先端的な全球モデルを改良し、北極エアロゾルの気候影響を定量的に解明する。

  3. 植生-エアロゾル-気候間の相互作用解明に向けた欧州北方林エアロゾルの吸湿性解析

    Grant number:19KK0265  2019.10 - 2023.3

    科学研究費補助金  国際共同研究加速基金(国際共同研究強化(B))

    持田 陸宏

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    Grant amount:\3133000 ( Direct Cost: \2410000 、 Indirect Cost:\723000 )

    陸域植生から大気に放出される揮発性有機化合物の一部は、光化学反応により生物起源有機エアロゾル(BSOA)となり、雲凝結核としての働きなどにより放射収支に関与し、気候ひいては陸域植生に影響を及ぼすというフィードバック機構を形作ると指摘されている。しかし、エアロゾルの放射影響に関わる有機エアロゾルの吸湿性の推定値には大きな幅があり、BSOAの吸湿性や、その雲粒生成への寄与には大きな不確かさがある。そこで本研究では、北方森林圏を対象としてBSOAの吸湿性とその全エアロゾルの吸湿性に対する寄与を定量する。そして、北方林におけるBSOAの放射への寄与を評価し、上記のフィードバック機構について考察する。
    本研究では、フィンランドのヒューティアラ森林フィールドステーションにおいて大気エアロゾルの採取を行い、その化学組成と吸湿性を解析することで、植生由来の揮発性有機化合物から生成する生物起源二次有機エアロゾル(BSOA)の吸湿性や全エアロゾルの吸湿性に対するBSOAの寄与を定量すること、さらにはBSOAの放射収支への影響の評価や、BSOAが気候、ひいては陸域植生に及ぼすフィードバックを考察することを目標としている。エアロゾルの吸湿性の情報から放射収支への影響を議論する上では、エアロゾルに含まれる界面活性物質による粒子表面張力の低下が雲凝結核能力に及ぼす影響が考慮の対象となり、今年度、国内(名古屋)で採取された大気エアロゾル試料を用いて、この表面張力低下の現象について検討した。具体的には、水で抽出した大気エアロゾル成分の水溶液や硫酸アンモニウムを加えたエアロゾル抽出物の水溶液に対して、懸滴法により表面張力の測定を行い、硫酸アンモニウム・界面活性物質の濃度と表面張力の関係についてデータを得た。この実験結果は、大気エアロゾルの雲凝結核活性の評価において塩析効果をどのように取り扱うかを判断する上で、参考になると考えられる。
    なお、研究代表者の持田は、3月にヘルシンキ大学およびヒューティアラ森林フィールドステーションを訪問することを予定していたが、新型コロナウイルスの感染拡大の問題が発生したため、今年度の訪問を中止した。
    新型コロナウイルスの感染拡大により、研究代表者によるヘルシンキ大学訪問を中止することとなり、ヘルシンキ大学のヒューティアラ森林フィールドステーションにおける観測研究について詳細を議論するには至らなかった。
    新型コロナウィルスの感染拡大のため、ヒューティアラ森林フィールドステーションにおける大気エアロゾル採取の日程調整に至っていない。感染の状況が落ち着いた場合には、試料採取の詳細について相談を進めたい。今後の状況によっては、当初検討していた令和2年度の試料採取を見送り、令和3年度以降の採取に基づいて研究を進めることを検討する可能性がある。

  4. 雲・エアロゾルを介した中緯度大気海洋相互作用

    Grant number:19H05699  2019.6 - 2024.3

    科学研究費補助金  新学術領域研究(研究領域提案型)

    小池 真

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    領域研究全体の中で当計画研究の位置づけは、中緯度の大気海洋相互作用の担い手としてエアロゾルという物質科学を導入することである。本研究では、西部北太平洋などの下層雲の変動を、海面温度を含む気象場および海洋からのエアロゾル供給などの観点から,他の海域の下層雲との対比を含めて明らかにする。このために、航空機や船舶の現場観測による微物理プロセス(エアロゾルの雲・降水影響など)の解明、客観解析データ・人工衛星データ解析による各海域での雲量や雲水量の動態解明、そして数値モデルによるエアロゾルや海面温度などの下層雲への影響の定量化という統合的な研究を実施する。
    本計画研究の目的は、西部北太平洋などの下層雲の変動を、海表面温度(SST)を含む気象場および海洋からのエアロゾル供給などの観点から、他の海域の下層雲との対比を含めて明らかにすることである。この目的を達成するために、本研究では3つのサブテーマにより研究を進めている。
    サブテーマ(i) 「雲・エアロゾルの現場観測によるプロセス研究」では、2021年度夏に実施予定の航空機観測・船舶観測で用いるためのエアロゾル観測装置の開発・整備を実施した。とくに粒子の物性(複素屈折率)・形状・粒径分布を同時に実時間測定できる「単一粒子光消散法」の原理を確立した。さらに航空機観測において使用するレーザー光散乱による全エアロゾル粒径分布測定装置を改良するための準備を行った。また船上観測に適したエアロゾル数密度サイズ分布計測機器を選定・購入し、調整したうえで基準機器と比較するなど性能評価を行った。
    サブテーマ(ii) 「客観解析データ・人工衛星データ解析による動態研究」では、衛星データを用いて夏季北西太平洋域の雲の日変化を解析し,中層雲量が早朝に最大となることを明らかにした。またJAXA/GCOM-C衛星搭載のSGLIセンサから得られた雲物理特性のデータプロダクトを用いて、下層雲の微物理過程を水平的にマッピングする手法を開発した。
    サブテーマ(iii) 「数値モデル計算による大気海洋相互作用の評価」では、MIROC数値気候モデルの降雨生成の微物理過程において、サブ格子スケールの雲水の変動を考慮するスキームを開発し、その導入による全球気候への影響を定量的に評価した。また下層雲が亜熱帯高気圧にどのように影響するかを調査した。そして従来言われてきた下層雲の雲頂冷却が亜熱帯高気圧を強化するという説は、最新のモデルでは支持されないことを示した。
    本研究では、現場観測、客観解析データ・人工衛星データ解析、数値モデル計算により、エアロゾル・雲を通じた大気海洋相互作用の研究を進めている。2019年度には、この現場観測のために必要となる各種測定装置の整備を、予定通りにすすめることができた。単一粒子消散法の理論的基礎、装置の基本設計、データ解析手法を確立した。またエアロゾル数密度サイズ分布計測機器の評価結果も良好であった。客観解析データ・人工衛星データ解析では、予定どおりに本プロジェクトの目的である中緯度下層雲の動態を調べるための衛星解析の手法の開発を進めることができた。また気象衛星ひまわり8号のデータ解析から下層雲の日周期の解析を開始した。数値モデル研究では、予定どおりに下層雲の生成・消滅に関わる降雨生成過程の表現を高度化するモデル改良を実施できた。また自然起源の海洋性エアロゾルとアジアの人為起源エアロゾルの下層雲形成に果たす役割を評価するために、海洋からの有機エアロゾルの放出メカニズムを導入する準備を進めた。
    以上のように、本研究はおおむね順調に進展していると言える。
    本研究では、現場観測、客観解析データ・人工衛星データ解析、数値モデル計算により、エアロゾル・雲を通じた大気海洋相互作用の研究を進めている。現場観測では、2021年夏の航空機と船舶の同時観測へ向けての測定器の準備と観測計画の検討を進める。航空機観測においてエアロゾルの詳細な特性を実時間測定するため、航空機搭載型の空気流用の単一粒子消散法の装置を開発する。また船舶観測において大気中の固体エアロゾル・海水中の微粒子をそれぞれ実時間測定するため、水流用の単一粒子消散法の装置を開発する。他の船舶観測で使用する予定の機器についても更なる開発・整備を進めるとともに、これまでに得られた航海観測データを評価し、本研究での主要航海観測に向けた準備を推進する。客観解析データ・人工衛星データ解析では、開発した衛星解析手法を本課題の対象である西部北太平洋の下層雲に適用し、その微物理過程が海水面温度(SST)やエアロゾルにどのように関係しているのか調べる。またひまわり衛星データの解析により、下層雲の日周期変動の動態把握を進めるとともに,黒潮上の梅雨前線帯の雲降水系の日変化の機構を明らかにする。数値モデル研究では、改良されたMIROC数値気候モデルを用いて、西部北太平洋を含む様々な領域において、下層雲がエネルギー収支にもたらす影響を定量的に評価する。また海洋からの有機エアロゾルの放出メカニズムを全球エアロゾルモデルに導入し、その下層雲への影響を評価する。

  5. Deepening the quantitative understanding of the hygroscopicity of atmospheric organic aerosol: Its relationship to chemical structures and sources

    Grant number:19H04253  2019.4 - 2022.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Coinvestigator(s)  Grant type:Competitive

  6. 全球モデルを用いたダストの発生源分布と長距離輸送過程の高精度化についての研究

    Grant number:31C2005  2019.4 - 2021.3

    鳥取大学乾燥地研究センター共同研究  一般研究

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\460000 ( Direct Cost: \460000 )

  7. 光吸収性エアロゾルの混合状態を解像した全球エアロゾルモデルの開発と気候影響評価

    Grant number:17H04709  2017.4 - 2021.3

    科学研究費補助金  若手研究(A)

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\22490000 ( Direct Cost: \17300000 、 Indirect Cost:\5190000 )

  8. 光吸収性エアロゾルの混合状態を解像した全球エアロゾルモデルの開発と気候影響評価

    2017.4 - 2021.3

    日本学術振興会  科学研究費助成事業  若手研究(A)

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    Grant type:Competitive

  9. 地球温暖化に関わる北極ブラックカーボンとダスト粒子の動態と放射効果

    Grant number:2-1703  2017.4 - 2020.3

    環境省  環境省環境研究総合推進費・環境問題対応型 

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    Grant type:Competitive

    Grant amount:\8255000 ( Direct Cost: \6350000 、 Indirect Cost:\1905000 )

  10. 北極の気候影響に関わるブラックカーボンの挙動の解明

    Grant number:16H01770  2016.4 - 2020.3

    科学研究費補助金  基盤研究(A)

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    Authorship:Coinvestigator(s) 

    Grant amount:\2340000 ( Direct Cost: \1800000 、 Indirect Cost:\540000 )

  11. 北極の気候影響に関わるブラックカーボンの挙動の解明

    2016.4 - 2020.3

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Grant type:Competitive

  12. International Observation of Asian Dust and Environmental Regime shift over the Source Regions

    Grant number:16H02703  2016.4 - 2019.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    Kai Kenji

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    Authorship:Coinvestigator(s)  Grant type:Competitive

    Grant amount:\390000 ( Direct Cost: \300000 、 Indirect Cost:\90000 )

    In recent years, international environmental problems occur due to the Asian dust, which is potentially affected by microorganisms and air pollutants, to be transported long distances. The 2014-2016 JSPS “Asia-Africa Science Platform on Asian dust and environmental regime shift” was applied for an international observation of the Asian dust from the Gobi Desert and Mongolian Grassland to Japan. A lidar network observation in the Gobi Desert showed a transport of the Asian dust from the atmospheric boundary layer to the free troposphere by a cold frontal system, moving across the desert. A new approach to investigate the Asian dust as bioaerosols was employed. A gene analysis of the bioaerosols showed that the Asian dust is a significant vehicle for long‐range transport of microorganisms. An evidence of the environmental regime shift was found in the Mongolian Grassland.

  13. エアロゾルの次世代型全球モデルの開発とその気候影響・多圏相互作用に関する研究

    2016.1 - 2018.1

    日本学術振興会  日本学術振興会海外特別研究員制度 

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    Grant type:Competitive

  14. 北極気候に関わるブラックカーボン等エアロゾルの動態・発生源と雲・放射影響

    2015.4 - 2020.3

    文部科学省  文部科学省環境技術等研究開発推進事業・北極域研究推進プロジェクト(ArCSプロジェクト) 

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    Grant type:Competitive

  15. 東アジアの人為起源エアロゾルの間接効果

    2014.4 - 2018.3

    科学研究費補助金  基盤研究(A)

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    Authorship:Coinvestigator(s) 

  16. 次世代型エアロゾル統合モデルの開発による直接・間接効果の高精度評価

    Grant number:26740014  2014.4 - 2018.3

    科学研究費補助金  若手研究(B)

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\3900000 ( Direct Cost: \3000000 、 Indirect Cost:\900000 )

  17. Development of a next-generation aerosol model and evaluation of aerosol impacts on climate

    Grant number:26740014  2014.4 - 2018.3

    Matsui Hitoshi

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\3900000 ( Direct Cost: \3000000 、 Indirect Cost:\900000 )

    The interaction of atmospheric aerosol particles with radiation and cloud processes is one of the largest uncertainties in predicting climate change. In this study, I developed a next-generation aerosol model, which can represent number concentration, size distribution, and chemical composition of each particle sufficiently, and validated the aerosol model through comparisons with various aerosol observations in the atmosphere. Then, I evaluated the impact of aerosol particles on climate, such as the heating effect of black carbon (soot) aerosols and its uncertainty and the response of aerosols to changes in emissions from the past to the future, by focusing on related microphysical and chemical processes of aerosols.

  18. Indirect effects of anthropogenic aerosols in East Asia

    Grant number:26241003  2014.4 - 2018.3

    KOIKE Makoto

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    Authorship:Coinvestigator(s)  Grant type:Competitive

    By serving as cloud condensation nuclei, aerosols affect cloud microphysics, and as a consequence, they can affect cloud albedo, cloud amount, and precipitation. In this study we show using satellite-derived cloud data that cloud droplet number concentration increases over the East China sea where the Kuroshio ocean current with high sea surface temperature (SST) is located especially when cold air outbreak takes place. We also show using aircraft data that aerosol number concentration and vertical structure of cloud liquid water content are very different in precipitating clouds as compared with those in non-precipitating clouds. Using improved numerical models, we show that these observed features of influences of aerosols and SST on clouds and precipitation can be successfully reproduced.

  19. 東アジアの人為起源エアロゾルの間接効果

    2014.4 - 2018.3

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Grant type:Competitive

  20. 次世代型エアロゾル統合モデルの開発による直接・間接効果の高精度評価

    2014.4 - 2018.3

    日本学術振興会  科学研究費助成事業  若手研究(B)

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    Grant type:Competitive

  21. 地球温暖化に関わるブラックカーボン放射効果の総合的評価

    2014.4 - 2017.3

    環境省  環境省環境研究総合推進費・環境問題対応型 

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    Grant type:Competitive

  22. アジアのエアロゾル・雲・降水システムの観測・モデルによる統合的研究

    2011.4 - 2015.3

    科学研究費補助金  基盤研究(S)

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    Authorship:Coinvestigator(s) 

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