Influence of winter and summer surface wind anomalies on summer Arctic sea ice extent

Ogi, Masayo; Yamazaki, Koji; Wallace, John M.

Geophysical Research Letters, 2010, 37, L07701

Permalink : https://hdl.handle.net/2115/48180

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アクセス権	open access
URI	https://hdl.handle.net/2115/48180
タイトル	Influence of winter and summer surface wind anomalies on summer Arctic sea ice extent
著者	Ogi, Masayo ; Yamazaki, Koji ; Wallace, John M.
著者名 Ogi, Masayo
著者名 Yamazaki, Koji
著者名 Wallace, John M.
言語	英語
発行日	2010-04-02
出版者	American Geophysical Union
収録物名	Geophysical Research Letters
巻(号)	37
ページ	L07701
抄録	Based on a statistical analysis incorporating 925‐hPa wind fields from the NCEP/NCAR Reanalyses, it is shown that the combined effect of winter and summer wind forcing accounts for 50% of the variance of the change in September Arctic sea ice extent from one year to the next (ΔSIE) and it also explains roughly 1/3 of the downward linear trend of SIE over the past 31 years. In both seasons meridional wind anomalies to the north and east of Greenland are correlated with September SIE, presumably because they modulate the export of ice through Fram Strait. Anticyclonic wind anomalies over the Beaufort Sea during summer favor low September SIE and have contributed to the record-low values in recent summers, perhaps by enhancing the flux of ice toward Fram Strait in the trans-polar drift.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright 2010 by the American Geophysical Union.
PISSN	0094-8276
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1029/2009GL042356