堀田大介

Hotta Daisuke

所属機関・部署：
職名：主任研究官
ホームページURL (2件)： https://www.mri-jma.go.jp/Member/obs/kehottadaisukeh.html , https://www.mri-jma.go.jp/Member/obs/kehottadaisukeh_en.html

研究分野 (3件)：応用数学、統計数学 , 数学基礎 , 大気水圏科学

競争的資金等の研究課題 (3件)：

論文 (19件)：

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

MISC (21件)：

堀田大介. ネスト可能でマルチグリッド法の利用に適した二次元球面上の格子系と求積法. JACM メールマガジン. 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

書籍 (2件)：

講演・口頭発表等 (27件)：

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)

学歴 (4件)：

学位 (4件)：

経歴 (7件)：

全件表示

委員歴 (2件)：

受賞 (4件)：

所属学会 (3件)：

日本計算力学連合 , 日本地球惑星科学連合 , 日本気象学会

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堀田 大介