Hotta Daisuke

Affiliation and department：
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)：

Papers (20)：

Milan Klöwer, Maximilian Gelbrecht, Daisuke Hotta, Justin Willmert, Simone Silvestri, Gregory L Wagner, Alistair White, Sam Hatfield, Tom Kimpson, Navid C Constantinou, et al. SpeedyWeather.jl: Reinventing atmospheric general circulation models towards interactivity and extensibility. Journal of Open Source Software. 2024
Daisuke Hotta, Katrin Lonitz, Sean Healy. Forward operator for polarimetric radio occultation measurements. Atmospheric Measurement Techniques. 2023
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

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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

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Books (2)：

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)

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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)：

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

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Committee career (2)：

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

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