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The Relationship between the Arctic Sea-ice Recovery and Atmospheric Circulations in Autumn
http://hdl.handle.net/10076/13044
http://hdl.handle.net/10076/1304431614144-5fea-4ffd-9c2c-a4c4a797b6e0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
2011M321.pdf (2.0 MB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||
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| 公開日 | 2013-06-11 | |||||||
| タイトル | ||||||||
| タイトル | The Relationship between the Arctic Sea-ice Recovery and Atmospheric Circulations in Autumn | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_46ec | |||||||
| 資源タイプ | thesis | |||||||
| 著者 |
Ito, Masashi
× Ito, Masashi
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | As the sea-ice extent decreases during summer over the Arctic, it tends to recover quickly during autumn. I investigated a relationship between the sea-ice recovery and atmospheric circulations over the Arctic in the beginning of freezing season. The object domain is the Pacific sector (70°-90°N, 270°-90°E) in the Arctic Ocean. I analyzed the sea-ice growth rates per day each month (Sep. Oct. Nov.) and the conditions of atmospheric pressure patterns when the sea-ice is generated in autumn from 1979-2010 with ERA-Interim. reanalysis data. The sea-ice growth rates tend to increase recent years. The sea surface atmosphere cold temperature is important for the sea-ice generation. In addition, a cyclone or an anticyclone needs to be located at the cold temperature area. Because the cyclones exist on sea-ice with cold advection to the Arctic ice edge, the upward heat flux from the Arctic Ocean activates the freezing the sea ice. Therefore, the cold air of the lower troposphere and circulations with cyclones or anticyclones on the cold air is needed to generate the sea-ice. Recently, the pressure pattern has changed. The rate of sea-ice generation has increased on October, because signature pressure pattern occurs rather than few decades ago. Additionally, the decreasing horizontal temperature flux roles cooling the Arctic. Both factors affect the much sea-ice generation recent years. | |||||||
| 内容記述 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 三重大学大学院生物資源学研究科博士前期課程共生環境学専攻 | |||||||
| 内容記述 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 35 | |||||||
| 書誌情報 |
発行日 2011-01-01 |
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| フォーマット | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | application/pdf | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| その他のタイトル | ||||||||
| 秋季における北極の海氷回復と大気循環の関係 | ||||||||
| 出版者 | ||||||||
| 出版者 | 三重大学 | |||||||
| 修士論文指導教員 | ||||||||
| 寄与者識別子Scheme | WEKO | |||||||
| 寄与者識別子 | 26422 | |||||||
| 姓名 | Tachibana, Yoshihiro | |||||||
| 言語 | en | |||||||
| 資源タイプ（三重大） | ||||||||
| Master's Thesis / 修士論文 | ||||||||
