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  1. 学術雑誌論文
  2. その他
  1. 部局別インデックス
  2. 理学部

Simultaneous Optimization of Air̶Sea Exchange Coefficients and Initial Conditions near a Tropical Cyclone Using JNoVA

http://hdl.handle.net/20.500.12000/37530
http://hdl.handle.net/20.500.12000/37530
07c3b82a-a002-4938-b701-3b864c7e835a
名前 / ファイル ライセンス アクション
Journal_of_the_Meteorological_Society_of_Japan_Vol91p337.pdf Journal_of_the_Meteorological_Society_of_Japan_Vol91p337.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2018-01-12
タイトル
タイトル Simultaneous Optimization of Air̶Sea Exchange Coefficients and Initial Conditions near a Tropical Cyclone Using JNoVA
言語 ja
作成者 Ito, Kosuke

× Ito, Kosuke

en Ito, Kosuke

Kawabata, Takuya

× Kawabata, Takuya

en Kawabata, Takuya

Teruyuki, Kato

× Teruyuki, Kato

en Teruyuki, Kato

Honda, Yuki

× Honda, Yuki

en Honda, Yuki

Ishikawa, Yoichi

× Ishikawa, Yoichi

en Ishikawa, Yoichi

Awaji, Toshiyuki

× Awaji, Toshiyuki

en Awaji, Toshiyuki

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
主題
言語 ja
主題Scheme Other
主題 air̶sea interaction
内容記述
内容記述タイプ Other
内容記述 The impact ofoptimizing the air̶sea exchange coefficients and the initial state is examined for a tropical cyclone (TC) with the aim ofimproving an operational mesoscale four-dimensional variational data assimilation system. In our optimization approach for TC Chaba that approached the Ryukyu Islands in October 2010, the drag coefficient values are adjusted so that they saturate at extreme conditions, while the first guess increases with increasing wind speed. In addition, the latent heat exchange coefficient values are adjusted so that they significantly increase under extreme conditions relative to the first guess. Consequently, the term of the cost function, which represents the discrepancy between the model results and the observational data, decreases by 4.1̶22.4% relative to the existing system after some spin-up cycles. The intensity and location ofthe TC are brought close to those ofthe corresponding best track produced at the Japan Meteorological Agency. Our optimization approach has the potential to improve the forecast skill.
内容記述タイプ Other
内容記述 論文
出版者
言語 ja
出版者 公益社団法人日本気象学会
言語
言語 eng
資源タイプ
資源タイプ journal article
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/37530
識別子タイプ HDL
関連情報
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.2151/jmsj.2013-307
関連識別子
識別子タイプ DOI
関連識別子 info:doi/10.2151/jmsj.2013-307
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 2186-9057
収録物名
言語 en
収録物名 Journal of the Meteorological Society of Japan
書誌情報
巻 91, 号 3, p. 337-353
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