Updated on 2023/09/28

写真a

 
SAKAI, Akiko
 
Organization
Graduate School of Environmental Studies Department of Earth and Environmental Sciences Global Environmental Variation 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. 博士(理学) ( 2001.3   名古屋大学 ) 

Research Interests 3

  1. Glacier

  2. High Mountain Asia

  3. Discharge from glacier

Research Areas 1

  1. Natural Science / Atmospheric and hydrospheric sciences  / Glacier

Current Research Project and SDGs 2

  1. 氷河融解を加速する3大光吸収性不純物の定量評価

  2. ヒマラヤの氷河湖の拡大過程

Professional Memberships 2

  1. 日本雪氷学会

  2. 水文・水資源学会

Awards 2

  1. 平田賞受賞

    2014.9   日本雪氷学会   アジア高山域におけるデブリ氷河・氷河湖の特性解明と氷河データベースの作成

     More details

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

  2. 中谷宇吉郎科学奨励賞受賞

    2001.2   加賀市:雪氷学会に推薦依頼   ヒマラヤにおける大型氷河の融解過程の解明

     More details

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

 

Papers 59

  1. Up-glacier propagation of surface lowering of Yala Glacier, Langtang Valley, Nepal Himalaya

    Sunako Sojiro, Fujita Koji, Izumi Takeki, Yamaguchi Satoru, Sakai Akiko, Kayastha Rijan Bhakta

    JOURNAL OF GLACIOLOGY   Vol. 69 ( 274 ) page: 425 - 432   2023.4

     More details

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

    DOI: 10.1017/jog.2022.118

    Web of Science

  2. Up-glacier propagation of surface lowering of Yala Glacier, Langtang Valley, Nepal Himalaya. Reviewed International coauthorship

    Sunako S, Fujita K, Izumi T, Yamaguchi S, Sakai A, Kayastha RB

    Journal of Glaciology   Vol. 69 ( 274 ) page: 425 - 432   2023.1

     More details

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

    DOI: doi:10.1017/jog.2022

  3. Land- to lake-terminating transition triggers dynamic thinning of a Bhutanese glacier. Reviewed International coauthorship

    Sato Y, Fujita K, Inoue H, Sakai A, Karma

    The Cryosphere   Vol. 16 ( 6 ) page: 2643 - 2654   2022.7

     More details

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

    DOI: doi:10.5194/tc-16-2643-2022

  4. Mass Balance of Four Mongolian Glaciers: In-situ Measurements, Long-Term Reconstruction and Sensitivity Analysis

    Khalzan Purevdagva, Sakai Akiko, Fujita Koji

    FRONTIERS IN EARTH SCIENCE   Vol. 9   2022.1

     More details

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

    DOI: 10.3389/feart.2021.785306

    Web of Science

  5. Ice cliff dynamics of debris-covered Trakarding Glacier in the Rolwaling region, Nepal Himalaya. Reviewed

    Sato Y, Fujita K, Inoue H, Sunako S, Sakai A, Tsushima A, Podolskiy EA, Kayastha R, Kayastha RB

    Frontiers in Earth Science   Vol. 9 ( 623623 )   2021.6

     More details

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

    DOI: doi.org/10.3389/feart.2021.623623

  6. Projected land ice contributions to twenty-first-century sea level rise. Reviewed International coauthorship

    Edwards TL, Nowicki S, Marzeion B, Hock R, Goelzer H, Seroussi H, Jourdain NC, Slater DA, Turner F, Smith CJ, McKenna CM, Simon E, Abe-Ouchi A, Gregory JM, Larour E, Lipscomb WH, Payne AJ, Shepherd A, Agosta C, Alexander P, Albrecht T, Anderson B, Asay-Davis X, Aschwanden A, Barthel A, Bliss A, Calov R, Chambers C, Champollion N, Choi YM, Cullather R, Cuzzone J, Dumas C, Felikson D, Fettweis X, Fujita K, Galton-Fenzi BK, Gladstone R, Golledge NR, Greve R, Hattermann T, Hoffman MJ, Humbert A, Huss M, Huybrechts P, Immerzeel WW, Kleiner T, Kraaijenbrink P, Le clec'h S, Lee V, Leguy GR, Little CM, Lowry DP, Malles JH, Martin DF, Maussion F, Morlighem M, O'Neill JF, Nias I, Pattyn F, Pelle T, Price SF, Quiquet A, Radić V, Reese R, Rounce DR, Rückamp M, Sakai A, Shafer C, Schlegel NJ, Shannon S, Smith RS, Straneo F, Sun S, Tarasov L, Trusel LD, van Breedam J, van de Wal RSW, van den Broeke M, Winkelmann R, Zekollari H, Zhao C, Zhang T, Zwinger T

    Nature   Vol. 593   page: 74 - 82   2021.5

     More details

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

    DOI: doi:10.1038/s41586-021-03302-y

  7. Partitioning the uncertainty of ensemble projections of global glacier mass change. Reviewed International coauthorship

    Marzeion B, Hock R, Anderson B, Bliss A, Champollion N, Fujita K, Huss M, Immerzeel WW, Kraaijenbrink P, Malles JH, Maussion F, Radić V, Rounce DR, Sakai A, Shannon S, van de Wal RSW, Zekollari H

    Earth's Future   Vol. 8 ( 7 )   2020.4

     More details

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

    DOI: 10.1029/2019EF001470

  8. Oxygen stable isotopes of a network of shrubs and trees as high-resolution plaeoclimatic proxies in Northwestern China. Reviewed International coauthorship

    Li Q, Liu Y, Nakatsuka T, Zhang QB, Ohnishi K, Sakai A, Kobayashi O, Pan YN, Song HM, Liu RS, Sun CF, Fang CX

    Agricultural and Forest Meteorology     2020.2

     More details

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

    DOI: 10.1016/j.agrformet.2020

  9. Contrasting thinning patterns between lake- and land-terminating glaciers in the Bhutanese Himalaya. Reviewed International coauthorship

    Tsutaki S, Fujita K, Nuimura T, Sakai A, Sugiyama S, Komori J, Tshering P

    The Cryosphere   Vol. 13 ( 10 ) page: 2733 - 2750   2019.10

     More details

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

    DOI: 10.5194/tc-13-2733-2019

  10. Brief communication: Updated GAMDAM Glacier Inventory over the High Mountain Asia. Reviewed

    Akiko Sakai

    The Cryosphere   Vol. 13 ( 7 ) page: 2043-2049   2019.7

     More details

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

    DOI: 10.5194/tc-13-2043-2019

  11. Mass balance of Trambau Glacier, Rolwaling region, Nepal Himalaya: in-situ observations, long-term reconstruction and mass-balance sensitivity Reviewed International coauthorship

    Sunako S, Fujita K, Sakai A, Kayastha RB

    Journal of Glaciology   Vol. 65 ( 252 ) page: 605 - 616   2019.6

     More details

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

    DOI: 10.1017/jog.2019.37,

  12. Surface lowering of the debris-covered area of Kanchenjunga Glacier in the eastern Nepal Himalaya since 1975, as revealed by Hexagon KH-9 and ALOS satellite observations

    Lamsal Damodar, Fujita Koji, Sakai Akiko

    CRYOSPHERE   Vol. 11 ( 6 ) page: 2815-2827   2017.12

     More details

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

    DOI: 10.5194/tc-11-2815-2017

    Web of Science

    Scopus

  13. Contrasting glacier responses to recent climate change in high-mountain Asia

    Sakai Akiko, Fujita Koji

    SCIENTIFIC REPORTS   Vol. 7 ( 1 ) page: 13717   2017.10

     More details

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

    DOI: 10.1038/s41598-017-14256-5

    Web of Science

    Scopus

    PubMed

  14. Downwasting of the debris-covered area of Lirung Glacier in Langtang Valley, Nepal Himalaya, from 1974 to 2010

    Nuimura Takayuki, Fujita Koji, Sakai Akiko

    QUATERNARY INTERNATIONAL   Vol. 455   page: 93-101   2017.10

     More details

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

    DOI: 10.1016/j.quaint.2017.06.066

    Web of Science

    Scopus

  15. Topographic controls on the debris-cover extent of glaciers in the Eastern Himalayas: Regional analysis using a novel high-resolution glacier inventory

    Ojha Sunal, Fujita Koji, Sakai Akiko, Nagai Hiroto, Lamsal Damodar

    QUATERNARY INTERNATIONAL   Vol. 455   page: 82-92   2017.10

     More details

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

    DOI: 10.1016/j.quaint.2017.08.007

    Web of Science

    Scopus

  16. Evaluating the Scale and Potential of GLOF in the Bhutan Himalayas Using a Satellite-Based Integral Glacier-Glacial Lake Inventory

    Nagai Hiroto, Ukita Jinro, Narama Chiyuki, Fujita Koji, Sakai Akiko, Tadono Takeo, Yamanokuchi Tsutomu, Tomiyama Nobuhiro

    GEOSCIENCES   Vol. 7 ( 3 )   2017.9

     More details

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

    DOI: 10.3390/geosciences7030077

    Web of Science

    Scopus

  17. Debris-covered glacier anomaly? Morphological factors controlling changes in the mass balance, surface area, terminus position, and snow line altitude of Himalayan glaciers

    Salerno Franco, Thakuri Sudeep, Tartari Gianni, Nnimura Takayuki, Sunako Sojiro, Sakai Akiko, Fujita Koji

    EARTH AND PLANETARY SCIENCE LETTERS   Vol. 471   page: 19-31   2017.8

     More details

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

    DOI: 10.1016/j.epsl.2017.04.039

    Web of Science

    Scopus

  18. Anomalous winter-snow-amplified earthquake-induced disaster of the 2015 Langtang avalanche in Nepal

    Fujita Koji, Inoue Hiroshi, Izumi Takeki, Yamaguchi Satoru, Sadakane Ayako, Sunako Sojiro, Nishimura Kouichi, Immerzeel WalterW., Shea Joseph M., Kayastha Rijan B., Sawagaki Takanobu, Breashears David F., Yagi Hiroshi, Sakai Akiko

    NATURAL HAZARDS AND EARTH SYSTEM SCIENCES   Vol. 17 ( 5 ) page: 749-764   2017.5

     More details

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

    DOI: 10.5194/nhess-17-749-2017

    Web of Science

    Scopus

  19. Geomorphic and geologic controls of geohazards induced by Nepal's 2015 Gorkha earthquake

    Kargel J. S., Leonard G. J., Shugar D. H., Haritashya U. K., Bevington A., Fielding E. J., Fujita K., Geertsema M., Miles E. S., Steiner J., Anderson E., Bajracharya S., Bawden G. W., Breashears D. F., Byers A., Collins B., Dhital M. R., Donnellan A., Evans T. L., Geai M. L., Glasscoe M. T., Green D., Gurung D. R., Heijenk R., Hilborn A., Hudnut K., Huyck C., Immerzeel W. W., Jiang Liming, Jibson R., Kaab A., Khanal N. R., Kirschbaum D., Kraaijenbrink P. D. A., Lamsal D., Liu Shiyin, Lv Mingyang, McKinney D., Nahirnick N. K., Nan Zhuotong, Ojha S., Olsenholler J., Painter T. H., Pleasants M., Pratima K. C., Yuan Q. I., Raup B. H., Regmi D., Rounce D. R., Sakai A., Donghui Shangguan, Shea J. M., Shrestha A. B., Shukla A., Stumm D., van der Kooij M., Voss K., Xin Wang, Weihs B., Wolfe D., Wu Lizong, Yao Xiaojun, Yoder M. R., Young N.

    SCIENCE   Vol. 351 ( 6269 )   2016.1

     More details

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

    DOI: 10.1126/science.aac8353

    Web of Science

  20. Comparison of multiple glacier inventories with a new inventory derived from high-resolution ALOS imagery in the Bhutan Himalaya

    Nagai H., Fujita K., Sakai A., Nuimura T., Tadono T.

    CRYOSPHERE   Vol. 10 ( 1 ) page: 65-85   2016

     More details

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

    DOI: 10.5194/tc-10-65-2016

    Web of Science

  21. Glacier area shrinkage in eastern Nepal Himalaya since 1992 using high-resolution inventories from aerial photographs and ALOS satellite images

    Ojha Sunal, Fujita Koji, Asahi Katsuhiko, Sakai Akiko, Lamsal Damodar, Nuimura Takayuki, Nagai Hiroto

    JOURNAL OF GLACIOLOGY   Vol. 62 ( 233 ) page: 512-524   2016

     More details

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

    DOI: 10.1017/jog.2016.61

    Web of Science

  22. Climate regime of Asian glaciers revealed by GAMDAM glacier inventory

    Sakai A., Nuimura T., Fujita K., Takenaka S., Nagai H., Lamsal D.

    CRYOSPHERE   Vol. 9 ( 3 ) page: 865 - 880   2015

     More details

    Publishing type:Research paper (scientific journal)  

    DOI: 10.5194/tc-9-865-2015

    Web of Science

  23. The GAMDAM glacier inventory: a quality-controlled inventory of Asian glaciers

    Nuimura T., Sakai A., Taniguchi K., Nagai H., Lamsal D., Tsutaki S., Kozawa A., Hoshina Y., Takenaka S., Omiya S., Tsunematsu K., Tshering P., Fujita K.

    CRYOSPHERE   Vol. 9 ( 3 ) page: 849 - 864   2015

     More details

    Publishing type:Research paper (scientific journal)  

    DOI: 10.5194/tc-9-849-2015

    Web of Science

  24. Formation conditions of supraglacial lakes on debris-covered glaciers in the Himalayas. Reviewed

    Sakai A, Fujita K

    Journal of Glaciology   Vol. 568 ( 195 ) page: 177-181   2010

     More details

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

  25. Reconstructions of annual discharge and equilibrium line altitude of glaciers at Qilian Shan, northwest China, from 1978 to 2002. Reviewed

    Sakai A, Fujita K, Narama C, Kubota J, Nakawo M, Yao T

    Hydrological Processes   Vol. 24 ( 19 ) page: 2798-2806   2010

     More details

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

  26. Recent changes in Imja Glacial Lake and its damming moraine in the Nepal Himalaya revealed by in-situ surveys and multi-temporal ASTER imagery. Reviewed

    Fujita K, Sakai A, Nuimura T, Yamaguchi S, Sharma RR

    Environmental Research Letters   Vol. 4   page: doi:10.1088/1748-9326/4/4/045205   2009

     More details

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

  27. A shallow ice core re-drilled on the Dunde Ice Cap, western China: recent changes in the Asian high mountains. Reviewed

    Takeuchi N, Miyake T, Nakazawa F, Narita H, Fujita K, Sakai A, Nakawo M, Fujii Y, Duan KQ, Yao TD

    Environmental Research Letters   Vol. 4   page: 045207. doi:10.1088/1748-9326/4/4/045207   2009

     More details

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

  28. Simplification of heat balance calculation and its application to the glacier runoff from the July 1st Glacier in northwest China since the 1930s. Reviewed

    Sakai A, Fujita K, Nakawo M, Yao T

    Hydrological Processes   Vol. 23   page: 585-596   2009

     More details

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

  29. Onset of calving at supraglacial lakes on debris covered glaciers of the Nepal Himalayas. Reviewed

    Sakai A, Nishimura K, Kadota T, Takeuchi N

    Journal of Glaciology   Vol. 55 ( 193 ) page: 909-917   2009

     More details

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

  30. Performance of ASTER and SRTM DEMs, and their potential for assessing glacier lakes in the Lunana region, Bhutan Himalayas. Reviewed

    Fujita K, Suzuki R, Nuimura T, Sakai A

    Journal of Glaciology   Vol. 54 ( 185 ) page: 220-228   2008

     More details

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

  31. Five decades of shrinkage of the July 1st Glacier, Qilian Mountains, China. Reviewed

    Sakai A, Fujita K, Duan K, Pu J, Nakawo M, Yao T

    Journal of Glaciology   Vol. 52 ( 176 ) page: 11-16   2006

     More details

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

  32. Preliminary observations of sub-surface and shallow ice core at July 1st Glacier, China in 2002-2004. Reviewed

    Uetake J, Sakai A, Matsuda Y, Fujita K, Narita H, Matoba S, Duan K, Nakawo M, Yao T

    Bulletin of Glaciological Research   Vol. 23   page: 85-93   2006

     More details

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

  33. Thirty-year history of glacier melting in the Nepal Himalayas. Reviewed

    Fujita K, Thompson LG, Ageta Y, Yasunari T, Kajikawa Y, Sakai A, Takeuchi N.

    Journal of Geophysical Research – Atmospheres   Vol. 111(D3)   page: doi:10.1029/2005JD005894   2006

     More details

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

  34. Meteorological observation at July 1st Glacier in northwest China from 2002 to 2005. Reviewed

    Sakai A, Matsuda Y, Fujita K, Matoba S, Uetake J, Satow K, Duan K, Pu J, Nakawo M, Yao T

    Bulletin of Glaciological Research   Vol. 23   page: 23-31   2006

     More details

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

  35. Estimation of atmospheric transmissivity of solar radiation from precipitation in the Himalayas and Tibetan Plateau. Reviewed

    Matsuda Y, Fujita K, Ageta Y, Sakai A

    Annals of Glaciology   Vol. 43   page: 344-350   2006

     More details

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

  36. Hydrological observations at July 1st Glacier in northwest China from 2002 to 2004. Reviewed

    Sakai A, Matsuda Y, Fujita K, Duan K, Pu J, Yamaguchi S, Nakawo M, Yao T

    Bulletin of Glaciological Research   Vol. 23   page: 33-39   2006

     More details

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

  37. Topographical survey of July 1st Glacier in Qilian Mountains, China. Reviewed

    Fujita K, Sakai A, Matsuda Y, Narama C, Naito N, Yamaguchi S, Hiyama K, Pu J, Yao T, Nakawo M

    Bulletin of Glaciological Research   Vol. 23   page: 63-67   2006

     More details

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

  38. A large amount of biogenic surface dust (cryoconite) on a glacier in the Qilian Mountains, China. Reviewed

    Takeuchi N, Matsuda Y, Sakai A, Fujita K.

    Bulletin of Glaciological Research   Vol. 21   page: 1-8   2004

     More details

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

  39. Glaciological observations on July 1st glacier in Qilian Mountains of west China during summer 2002. Reviewed

    Matsuda Y, Sakai A, Fujita K, Nakawo M, Duan K, Pu J, Yao T

    Bulletin of Glaciological Research   Vol. 21   page: 31-36   2004

     More details

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

  40. Evaporation and percolation effect on melting at debris-covered Lirung Glacier, Nepal Himalayas, 1996. Reviewed

    Sakai A, Fujita K, Kubota J.

    Bulletin of Glaciological Research   Vol. 21   page: 9-15   2004

     More details

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

  41. Positive degree-day factors for ice ablation on four glaciers in the Nepalese Himalayas. Reviewed

    Kayastha RB, Ageta Y, Nakawo M, Fujita K, Sakai A, Matsuda Y.

    Bulletin of Glaciological Research   Vol. 20   page: 7-14   2003

     More details

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

  42. Distribution Characteristics and Energy Balance of Ice Cliffs on Debris-covered Glaciers, Nepal Himalaya. Reviewed

    Sakai A, Nakawo M, Fujita K.

    Arctic, Antarctic, and Alpine Research   Vol. 34 ( 1 ) page: 12-29   2002

     More details

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

  43. Surface lowering over the ablation area of Lirung Glacier, Nepal Himalayas. Reviewed

    Naito N, Kadota T, Fujita K, Sakai A, Nakawo M.

    Bulletin of Glaciological Research   Vol. 19   page: 41-46   2002

     More details

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

  44. Glacial Lakes and their outburst flood assessment in the Bhutan Himalaya. Reviewed

    Iwata S, Ageta Y, Naito N, Sakai A, Narama C, Karma.

    Global Environmental Research   Vol. 6 ( 1 ) page: 3-17   2002

     More details

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

  45. Isotope studies of inner snow layers in a temperate region. Reviewed

    Hashimoto S, Shiqiao Z, Nakawo M, Sakai A, Ageta Y, Ishikawa N, Narita H.

    Hydrological Processes   Vol. 16 ( 11 ) page: 2209-2220   2002

     More details

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

  46. Thermal regime of a moraine-dammed glacial lake, Tsho Rolpa, in Rolwaling Himal, Nepal Himalaya. Reviewed

    Sakai A, Yamada T, Chikita K.

    Bulletin of Glaciological Research   Vol. 18   page: 37-44   2001

     More details

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

  47. Expansion of a moraine-dammed glacier lake, Tsho Rolpa, in Rolwaling Himal, Nepal Himalaya. Reviewed

    Sakai A, Chikita K, Yamada T.

    Limnology & Oceanography   Vol. 45 ( 6 ) page: 1401-1408   2000

     More details

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

  48. Air temperature environment on debris-covered area of Lirung Glacier, Langtang Valley, Nepal Himalayas. Reviewed

    Fujita K. Sakai A.

    International Association of Hydrological Sciences   Vol. 264   page: 83-88   2000

     More details

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

  49. Seasonal changes in dissolved chemical composition and flux of meltwater draining from Lirung Glacier in Nepal Himalaya. Reviewed

    Bhatt, MP, Masuzawa T, Yamamoto M, Sakai A, Fujita K.

    International Association of Hydrological Sciences   Vol. 264   page: 277-288   2000

     More details

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

  50. Expansion of glacier lakes in recent decades in the Bhutan Himalayas. Reviewed

    Ageta Y, Iwata S, Naito N, Sakai A, Narama C, Karma.

    International Association of Hydrological Sciences   Vol. 264   page: 165-175   2000

     More details

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

  51. Role of supraglacial pond in the ablation process of a debris-covered glacier in the Nepal Himalayas. Reviewed

    Sakai A, Takeuchi N, Fujita K, Nakawo M.

    International Association of Hydrological Sciences   Vol. 264   page: 119-130   2000

     More details

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

  52. Characteristic of Khumbu Glacier, Nepal Himalaya: recent change in the debris-covered area. Reviewed

    Nakawo M, Yabuki H, Sakai A.

    Annals of Glaciology   Vol. 28   page: 118-122   1999

     More details

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

  53. Melt rate of ice cliffs on the Lirung Glacier, Nepal Himalayas, 1996. Reviewed

    Sakai A, Nakawo M, Fujita K.

    Bulletin of Glacier Research   Vol. 16   page: 57-66   1998

     More details

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

  54. Changing surface features of Khumbu Glacier, Nepal Himalayas revealed by SPOT images. Reviewed

    Seko K, Yabuki H, Nakawo M, Sakai A, Kadota T, Yamada Y.

    Bulletin of Glacier Research   Vol. 16   page: 33-41   1998

     More details

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

  55. Surface flow on the ablation area of the Lirung Glacier in Langtang Valley, Nepal Himalayas. Reviewed

    Naito N, Nakawo M, Aoki T, Asahi K, Fujita K, Sakai A, Kadota T, Shiraiwa T, Seko K.

    Bulletin of Glacier Research   Vol. 16   page: 67-73   1998

     More details

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

  56. Water discharge from the Lirung Glacier in Langtang Valley, Nepal Himalayas, 1996. Reviewed

    Sakai A, Fujita K, Aoki T, Asahi K, Nakawo M.

    Bulletin of Glacier Research   Vol. 15   page: 79-83   1997

     More details

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

  57. Hydrodynamic effects on the basin expansion of Tsho Rolpa Glacier Lake in the Nepal Himalaya. Reviewed

    Chikita, K, Yamada T, Sakai A, Ghimire RP.

    Bulletin of Glacier Research   Vol. 15   page: 59-69   1997

     More details

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

  58. Meteorological observation in Langtang Valley, 1996. Reviewed

    Fujita K, Sakai A, Chhetri TB.

    Bulletin of Glacier Research   Vol. 15   page: 71-78   1997

     More details

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

  59. Establishment of the GEN Automatic Whether Station (AWS) in Khumbu region, Nepal Himalayas. Reviewed

    Ueno K, Iida H, Yabuki H, Seko K, Sakai A, Lhakupa GS, Kayastha RB, Pokhrel AP, Shrestha ML, Yasunari T, Nakawo M.

    Bulletin of Glacier Research   Vol. 14   page: 13-22   1996

     More details

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

▼display all

Books 2

  1. ヒマラヤと地球温暖化 消えゆく氷河

    中尾正義編( Role: Joint author)

    昭和堂  2007.3 

     More details

    Language:Japanese

    6章 デブリをかぶった氷河の縮小 を担当

  2. 中国辺境の50年 -黒河流域の人びとから見た現代史-

    中尾正義、フフバートル、小長谷有紀編( Role: Joint author)

    東方書店  2007.3 

     More details

    Language:Japanese

Presentations 15

  1. GAMDAM Glacier Inventory covering High Mountain Asia: 2011 - 2018 Invited International conference

    Akiko Sakai

    IGS Global Seminar Series  2023.2.15  Tavi Murray

     More details

    Event date: 2023.2

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

    Venue:On line   Country:United Kingdom  

  2. 風化氷作成実験I

    坂井亜規子, 石田直也, 根本征樹, 鈴木紘一, 砂子宗次朗, 飯塚芳徳, 八久保晶弘

    雪氷研究大会  2022.10.3 

     More details

    Event date: 2022.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:札幌  

  3. 風化氷と鉱物ダスト量を考慮した氷面アルベドのモデル化

    坂井亜規子, 竹内望

    雪氷研究大会  2022.10.3 

     More details

    Event date: 2022.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:札幌  

  4. 氷河変動を制御する気候因子について

    坂井亜規子, 藤田耕史

    雪氷研究大会  2021.9.14  日本雪氷学会、日本雪工学会

     More details

    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:千葉・オンライン  

  5. Updated GAMDAM Glacier Inventory over the High Mountain Asia. Invited International conference

    Akiko Sakai

    American Geophysical Union Fall Meeting 

     More details

    Event date: 2019.12

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

    Venue:San Francisco   Country:United States  

  6. Mass balance sensitivity to temperature change for globe glaciers. International conference

    Sakai A, Fujita K

    American Geophysical Union Fall Meeting 2018 

     More details

    Event date: 2018.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Washington DC   Country:Japan  

  7. 全球規模での氷河縮小と海水準上昇の将来予測

    藤田耕史, 坂井亜規子

    日本地球惑星科学連合大会 

     More details

    Event date: 2018.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:幕張   Country:Japan  

  8. ネパールヒマラヤ・トランバウ氷河における二年間の質量収支現場観測

    砂子宗次朗, 藤田耕史, 坂井亜規子

    日本地球惑星科学連合大会 

     More details

    Event date: 2018.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:幕張   Country:Japan  

  9. Structure from Motion技術を用いたネパールヒマラヤ・トランバウ氷河における2007-2017年の表面標高変化

    佐藤洋太, 藤田耕史, 井上公, 砂子宗次朗, 對馬あかね, 坂井亜規子

    日本地球惑星科学連合大会 

     More details

    Event date: 2018.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:幕張   Country:Japan  

  10. ネパール・ヒマラヤ トランバウ氷河における UAV-SfMより作成された数値標高モデルの精度検証

    佐藤洋太, 藤田耕史, 井上公, 對馬あかね, 砂子宗次朗, 坂井亜規子, Kayastha RB

    日本リモートセンシング学会 

     More details

    Event date: 2018.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:柏   Country:Japan  

  11. Contrasting glacier responses to recent climate change in High Mountain Asia. International conference

    Sakai A, Fujita K

    International Symposium on the Cryosphere in a Changing Climate 

     More details

    Event date: 2017.2

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Wellington, New Zealand   Country:Japan  

  12. The GAMDAM Glacier Inventory: a quality controlled inventory of Asian glaciers. International conference

    Sakai A, Nuimura T, Taniguchi K, Nagai H, Lamsal D, Tsutaki S, Hoshina Y, Takenaka S, Omiya S, Tsunematsu K, Tshering P, Fujita K

    International Union of Geodesy and Geophysics General Assembly 2015 

     More details

    Event date: 2015.6 - 2015.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Prague, Czech   Country:Japan  

  13. Climate regime of Asian glaciers revealed by GAMDAM glacier inventory. Invited International conference

    Sakai A, Nuimura T, Fujita K, Takenaka S, Taniguchi K, Nagai H, Lamsal D, Tsutaki S, Hoshina Y, Omiya S, Tsunematsu K, Tshering P, Kozawa A

    Asia Oceania Geosciences Society 2014 Annual Meeting 

     More details

    Event date: 2014.7 - 2014.8

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

    Venue:Sapporo, Japan   Country:Japan  

  14. Supraglacial lakes on Himalayan debris-covered glacier. Invited International conference

    Sakai A, Fujita K

    American Geophysical Union Fall Meeting 2013 

     More details

    Event date: 2013.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:San Francisco   Country:Japan  

  15. Quality controlled glacier inventory in high Asian mountains. International conference

    Sakai A, Nuimura T, Taniguchi K, Lamsal D, Nagai H, Tsutaki S, Kozawa A, Hoshina Y, Takenaka S, Omiya S, Tsunematsu K, Tshering P, Fujita K, Okamoto S

    American Geophysical Union Fall Meeting 2013 

     More details

    Event date: 2013.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:San Francisco   Country:Japan  

▼display all

KAKENHI (Grants-in-Aid for Scientific Research) 2

  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)

      More details

    Authorship:Principal investigator 

    Grant amount:\45370000 ( Direct Cost: \34900000 、 Indirect Cost:\10470000 )

  2. Investigation of state and fluctuation mechanisms of glaciers in high mountain Asia

    Grant number:26257202  2014.4 - 2018.3

    Fujita Koji

      More details

    Authorship:Other 

    To better understand fluctuations and their mechanisms of large glaciers in high mountain Asia, we conducted in-situ observations in the Nepal and Bhutan Himalayas with analyses of remotely sensed satellite data and of numerical modelling. We developed a numerical model for debris-covered glaciers, in which distribution of debris thermal resistance was estimated with remotely sensed data as a proxy of debris thickness, and then ice melting was calculated by considering heat balance. By analyzing high resolution remotely sensed satellite data, we revealed mass changes in a couple of Himalayan glaciers. In addition, we compiled glacier inventory covering high mountain Asia, and then revealed areal changes in glaciers in the eastern Himalayas. We also revealed that debris-cover extent was highly correlated with upper glacier-free slope facing southwest at which diurnal freeze-thaw cycle could produce and supply debris material on glacier.

 

Teaching Experience (On-campus) 1

  1. 地球惑星科学セミナーⅠ

    2021

Teaching Experience (Off-campus) 1

  1. 地学2

    2018.9 - 2018.3 Meijo University)