期刊
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
卷 115, 期 -, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2009JD013574
关键词
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资金
- Gary Comer Science and Education Foundation
- NSF [ATM-0555326]
- Japan Agency for Marine-Earth Science and Technology
- National Science Foundation [ARC-0652838]
- National Oceanic and Atmospheric Administration [NA06OAR4310147]
- Directorate For Geosciences
- Office of Polar Programs (OPP) [1023592] Funding Source: National Science Foundation
A lagged maximum covariance analysis is applied to investigate linear covariability between monthly sea ice concentration (SIC) and atmosphere circulation in the Northern Hemisphere. The dominant signal is the atmospheric forcing of SIC anomalies throughout the year, but a wintertime atmospheric signal resembling the negatively polarized Arctic Oscillation/North Atlantic Oscillation is significantly correlated with persistently reduced SIC anomalies in the North Atlantic and Pacific sides of Arctic Shelf seas up to the preceding summer. The leading time of SIC anomalies provides an implication for skillful predictability of wintertime atmospheric variability.
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