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北半球におけるZonal indexの季節別経年変動について
http://hdl.handle.net/10424/993
http://hdl.handle.net/10424/9936e61cdb0-e368-40a3-8068-32ba7174f9f8
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
kenshi535765.pdf (569.3 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2009-01-13 | |||||
| タイトル | ||||||
| タイトル | 北半球におけるZonal indexの季節別経年変動について | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 | departmental bulletin paper | |||||
| その他のタイトル | ||||||
| その他のタイトル | The seasonal variability of zonal index in the Northern Hemisphere | |||||
| 著者 |
大和田, 道雄
× 大和田, 道雄× 畔柳, 洋子 |
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| 研究者総覧へのリンク | ||||||
| 大和田, 道雄 | ||||||
| https://souran.aichi-edu.ac.jp/person/c0c7c76d30bd3dcaefc96f40275bdc0aja.html | ||||||
| 著者(別言語) | ||||||
| Owada, Michio | ||||||
| 著者(別言語) | ||||||
| Kuroyanagi, Yoko | ||||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In order to research the cause of recent unusual weather, this study investigated the variation of westerlies by zonal index, using NCEP-NCAR reanalysis dataset after the Climate shift. We analysed zonal index (from 40°N to 60°N) over planetary wave fields (Europe, East Asia, East Pacific and North America ) at 500hPa geopotential height fields in four seasons in the Northern Hemisphere. The results are summarized as follows. (1) There were apparent differences in the distribution of subtropical high pressure belts at between 200hPa and 500hPa geopotential height field in summer. Subtropical high pressure belts at 500hPa geopotential height field was influenced by subtropical jet stream flowing north of south Asian subtropical high centered at the Tibetan Plateau at 200hPa geopotential height field. (2) Therefore, we attempted to research the feature of pressure fields at 500hPa mean geopotential height field in high and low index years respectively, by standard deviation for 21 years mean 500hPa geopotential height field. In high index year, the deviation in mid-latitude showed positive anomaly field, and negative anomaly field in high-latitude. On the contrary, positive anomaly appeared in high-latitude, and negative anomaly in mid-latitude in low index year. These anomalous fields were corresponded to planetary wave fields where zonal index was high. (3) In planetary wave fields, zonal index in East Asia area and East Pacific area were high in autumn, although North America area indicated high zonal index in winter and low in spring. In Europe area, zonal index was high in autumn and winter, low in spring and summer. | |||||
| 書誌事項 |
愛知教育大学研究報告. 自然科学 巻 53, p. 57-65, 発行日 2004-03-01 |
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| 出版者 | ||||||
| 出版者 | 愛知教育大学 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0365-3722 | |||||
| 書誌情報 | ||||||
| 愛知教育大学研究報告, 自然科学編. 2004, 53, p.57-65. | ||||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN0000681X | |||||
| 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 | |||||
| 著者別名 | ||||||
| オオワダ, ミチオ | ||||||
| 著者別名 | ||||||
| クロヤナギ, ヨウコ | ||||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | text | |||||
