Can a state of the art atmospheric general circulation model reproduce recent NAO related variability at the air-sea interface?

被引：16

作者：

Josey, SA ^{[1
]}

Kent, EC ^{[1
]}

Sinha, B ^{[1
]}

机构：

[1] Southampton Oceanog Ctr, James Rennell Div Ocean Circulat & Climate, Southampton SO14 3ZH, Hants, England

来源：

GEOPHYSICAL RESEARCH LETTERS | 2001年 / 28卷 / 24期

关键词：

D O I：

10.1029/2001GL013200

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Recent studies claim that useful predictability of the North Atlantic Oscillation (NAO) up to several years in advance may be possible using atmospheric models in which the sea surface temperature (SST) is specified from observations. Achieving this goal requires that such models adequately capture the observed variation in the NAO at interannual as well as interdecadal timescales. We investigate whether this is the case by comparing interannual variability in the HadAM3 atmospheric model with observations in the SOC air-sea flux dataset for 1980-1995. We find that the model NAO time variation does not correspond to that observed, thus claims of multiannual predictability need to be viewed with caution. In addition, analysis of the observations reveals that NAO related SST anomalies do not exert a significant heat flux feedback on the atmosphere at seasonal to interannual timescales.

引用

页码：4543 / 4546

页数：4

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