異常気象をもたらす大気の大波「北極振動」と2010年猛暑の関係
In 2010, the Northern Hemisphere, in particular Russia and Japan, experienced an abnormally hot summer characterized by record-breaking warm temperatures and associated with a strongly positive Arctic Oscillation （AO）, that is, low pressure in the Arctic and high pressure in the midlatitudes. In con...
| Main Authors: | , , , , , |
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| Format: | Report |
| Language: | Japanese |
| Published: |
三重大学大学院生物資源学研究科
2012
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10076/11844 https://mie-u.repo.nii.ac.jp/?action=repository_uri&item_id=6177 https://mie-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6177&item_no=1&attribute_id=17&file_no=1 |
| Summary: | In 2010, the Northern Hemisphere, in particular Russia and Japan, experienced an abnormally hot summer characterized by record-breaking warm temperatures and associated with a strongly positive Arctic Oscillation （AO）, that is, low pressure in the Arctic and high pressure in the midlatitudes. In contrast, the AO index the previous winter and spring （2009/2010） was record-breaking negative. The AO polarity reversal that began in summer 2010 can explain the abnormally hot summer. The AO-related summertime tropical oceanic warm temperature anomaly might have been a remote cause of the formation of blocking highs in the Europe, thus amplifying the positive summertime AO. Understanding of this interseasonal linkage may aid in the long-term prediction of such abnormal summer events. |
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