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Frontogenesis Elevates the Maximum Chlorophyll a Concentration at the Subsurface Near the Kuroshio During Well-Stratified Seasons
https://fra.repo.nii.ac.jp/records/2000158
https://fra.repo.nii.ac.jp/records/2000158cf2a8831-7155-4fd7-9974-fd1127b97c34
| 名前 / ファイル | ライセンス | アクション |
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Ito et al Frontogenesis elevates the maximun chlorophyll a.pdf (13.2 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||
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| 公開日 | 2024-02-14 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Frontogenesis Elevates the Maximum Chlorophyll a Concentration at the Subsurface Near the Kuroshio During Well-Stratified Seasons | |||||||||||
| 言語 | en | |||||||||||
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| 言語 | eng | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | frontogenesis; subsurface chlorophyll maximum; in situ observation; satellite altimeter; the Kuroshio; mesoscale eddies | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| 著者 |
伊藤, 大樹
× 伊藤, 大樹× 児玉, 武稔
WEKO
411
× 清水, 勇吾× 瀬藤, 聡× 日髙, 清隆× 安倍, 大介× 寒川, 清佳 |
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | The contribution that fronts and frontogenesis make to subsurface chlorophyll a (CHL) concentration was investigated near the Kuroshio using data from multiple surveys across the Kuroshio during summer and fall and satellite sea surface height (SSH) data alongside high-resolution reanalysis data set. An intensive survey was conducted during a period of frontogenesis as seen from the in-situ and satellite-derived velocity data as well as the analysis of the reanalysis data set. Physical and biological observation showed shoaling of the nitracline and a subsurface CHL maximum (SCM) near the evolving front. The CHL concentration at the SCM (CHLSCM) was large near the front compared with the concentration in ambient water. Sections of 10 repeat seasonal surveys also captured the frontal structure, the shoaling of the nitracline, and the increase in CHLSCM as well as their interrelationship. The CHLSCM was large, and the depth of the SCM (ZSCM) was shallow above a large horizontal density gradient (i.e., marked mesoscale frontal structure) in the ocean interior. In addition, we demonstrate that the lateral strain rate, which is a measure of frontogenesis obtained from the SSH, can be used to estimate ZSCM and CHLSCM. Frontogenesis, secondary circulation, symmetric instability, and vertical diffusion were considered to cause the nutrient supply to the subsurface layer. The surveys and analysis indicate that fronts and frontogenesis increase CHLSCM, and the physical data obtained from both in-situ and satellite observations can be used to estimate CHL distribution in the ocean interior. | |||||||||||
| 言語 | en | |||||||||||
| 書誌情報 |
en : Journal of Geophysical Research: Oceans 巻 128, 号 5, p. e2022JC018940, 発行日 2023-05-10 |
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| 出版者 | ||||||||||||
| 出版者 | American Geophysical Union | |||||||||||
| 言語 | en | |||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||
| 収録物識別子 | 2169-9291 | |||||||||||
| DOI | ||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1029/2022JC018940 | |||||||||||
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| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | Local | |||||||||||
| 関連識別子 | 23235014 | |||||||||||
| 言語 | ja | |||||||||||
| 関連名称 | 水産資源研究所 水産資源研究センター 海洋環境部 | |||||||||||
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| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | URI | |||||||||||
| 関連識別子 | https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022JC018940 | |||||||||||
| 言語 | en | |||||||||||
| 関連名称 | AGU JGR Oceans | |||||||||||
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| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
