Rchr
J-GLOBAL ID：201701016982667164   Update date: Feb. 27, 2024

Hotta Daisuke

Hotta Daisuke
Affiliation and department：
Meteorological Research Institute

About Meteorological Research Institute


Job title： Senior Scientist
Homepage URL  (2)： https://www.mri-jma.go.jp/Member/obs/kehottadaisukeh.html ,  https://www.mri-jma.go.jp/Member/obs/kehottadaisukeh_en.html
Research field  (3)： Applied mathematics and statistics ,  Basic mathematics ,  Atmospheric and hydrospheric science
Research theme for competitive and other funds  (3)：
  • 2021 - 2026 Innovating assimilation of non-Gaussian image-like observations
  • 2021 - 2024 集中豪雨の発達機構を解明する水物質同化手法の研究
  • 2017 - 2019 背景誤差共分散のモデル空間直接局所化による遠隔・高密度観測データのLETKF同化
Papers (19)：
  • Daisuke Hotta, Katrin Lonitz, Sean Healy. Forward operator for polarimetric radio occultation measurements. Atmospheric Measurement Techniques. 2024
  • Daisuke Hotta, Takashi Kadowaki, Hitoshi Yonehara, Toshiyuki Ishibashi. Twin-analysis verification: A new verification approach to alleviate pitfalls of own-analysis verification. QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY. 2023. 149. 752. 924-932
  • Le Duc, Kazuo Saito, Daisuke Hotta. Analysis and design of covariance inflation methods using inflation functions. Part 2: adaptive inflation. QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY. 2021. 147. 737. 2375-2394
  • Daisuke Hotta, Yoichiro Ota. Why does EnKF suffer from analysis overconfidence? An insight into exploiting the ever-increasing volume of observations. QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY. 2021. 147. 735. 1258-1277
  • Le Duc, Kazuo Saito, Daisuke Hotta. Analysis and design of covariance inflation methods using inflation functions. Part 1: Theoretical framework. QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY. 2020
ｍore...
MISC (21)：
  • Nestable and multigrid-friendly grid and quadrature on a 2-dimensional sphere. 2022. 51. 2-3
  • Daisuke Hotta, Yoichiro Ota. What limits the number of observations that can be effectively assimilated by EnKF?. 2020
  • 瀬古 弘, 和田 章義, 村田 昭彦, 宮川 知己, 竹見 哲也, 福井 真, 川畑 拓矢, 北村 祐二, 清木 達也, 堀田 大介. 第5回非静力学モデルに関する国際ワークショップの報告. 天気. 2019. 66. 7. 501-506
  • 氏家 将志, 堀田 大介, 黒木 志洸. 力学過程の改良. 数値予報課報告・別冊. 2019. 65
  • H. Yonehara, R. Sekiguchi, T. Kanehama, K. Saitou, T. Kinami, A. Shimokobe, D. Hotta, R.Nagasawa, H. Sato, M. Ujiie, et al. Upgrade of JMA's s operational global NWP system. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling. 2018. 48. 6-15-6-16
ｍore...
Books (2)：
  • 氣象術語事典:全方位解析天氣預報等最尖端的氣象學知識
    台灣東販 2020
  • ニュース・天気予報がよくわかる気象キーワード事典
    ベレ出版 2019 ISBN:9784860645915
Lectures and oral presentations  (27)：
  • Accounting for multi-scale vertical error correlation within ETKF through spectral-space covariance localization
    (7th International Symposium on Data Assimilation(ISDA) 2019)
  • A nestable, multigrid-friendly grid on a sphere for global spectral models based on Clenshaw-Curtis quadrature
    (The 5th International Workshop on Nonhydrostatic Models 2018)
  • EFSO and DFS diagnostics for JMA's global Data Assimilation system: their caveats and potential pitfalls
    (Workshop on Sensitivity Analysis and Data Assimilation in Meteorology and Oceanography 2018)
  • A nestable, multigrid-friendly grid on a sphere for global spectral models based on Clenshaw-Curtis quadrature
    (2018 JpGU Meeting 2018)
  • Toward improved LETKF assimilation of non-local and dense observation by direct covariance localization in model space
    (2018 JpGU Meeting 2018)
ｍore...
Education (4)：
  • 2011 - 2014 University of Maryland, College Park Applied Mathematics, Statistics and Scientific Computing Program M.S. (May 2013), PhD (Aug. 2014)
  • 2004 - 2006 University of Tokyo Graduate school of Science Earth and Plenetary Science, MS (Mar. 2006)
  • 2002 - 2004 University of Tokyo Faculty of Science Department of Earth and Planetary Physics
  • 2000 - 2002 University of Tokyo College of Art and Science Science I
Professional career (4)：
  • PhD (University of Maryland)
  • MS (University of Maryland)
  • MS (The University of Tokyo)
  • BA (The University of Tokyo)
Work history (7)：
  • 2019/04 - 現在 Meteorological Research Institute Department of Observation & Data Assimilation senior research scientist
  • 2022/03 - 2023/03 European Centre for Medium-Range Weather Forecasts Visiting Scientist
  • 2017/10 - 2019/04 Meteorological Research Institute Forecast Research Department Senior Research Scientist
  • 2017/04 - 2017/09 Meteorological Research Institute Forecast Research Department Research Scientist
  • 2011/04 - 2017/03 Japan Meteorological Agency Numerical Prediction Division, Forecast Department Senior Scientific Officer
Show all
Committee career (2)：
  • 2017/07 - 2018/06 日本気象学会 2018年度春季大会実行委員
  • 2008/04 - 2011/08 日本気象学会 講演企画委員
Awards (4)：
  • 2021/07 - Japan Association for Computational Mechanics JACM Young Investigator Award
  • 2018/03 - Royal Meteorological Society QJRMS Editor's highlight
  • 2017/06 - Japan Meteorological Agency Director-General's Award
  • 2011/08 - Personnel Office, Government of Japan Long-term overseas Fellowship
Association Membership(s) (3)：
Japan Association for Computational Mechanics ,  JAPAN GEOSCIENCE UNION ,  the Meteorological Society of Japan
※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

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