Multimodel Estimates of Atmospheric Response to Modes of SST Variability and Implications for Droughts
Multimodel Estimates of Atmospheric Response to Modes of SST Variability and Implications for Droughts
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DOI：
10.1175/2010jcli3295.1
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发表时间：
2010-08
影响因子：
4.9
通讯作者：
P. Pegion;Arun Kumar
中科院分区：
文献类型：
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作者：
P. Pegion;Arun Kumar
作为世界气候研究计划(CLIVAR)美国气候变异性和可预测性部分干旱工作组的一部分，几个建模中心进行了一组理想化的全球模式实验。这些实验的目的是评估海洋表面温度变化的主要模式对大陆气候的作用，特别强调海洋表面温度变化对美国表面气候变化和干旱的影响。基于几个模型的分析使结果更可信，因为它依赖于对不同模型中稳健的影响的评估。分析了3种海温变率模式对协调大气环流模式的影响。结果表明，美国中部海温强迫降水变率以太平洋中部负荷最大的海温模式为主。在亚特兰蒂号上装载的SST模式...
Abstract A set of idealized global model experiments was performed by several modeling centers as part of the Drought Working Group of the U.S. Climate Variability and Predictability component of the World Climate Research Programme (CLIVAR). The purpose of the experiments was to assess the role of the leading modes of sea surface temperature (SST) variability on the climate over the continents, with particular emphasis on the influence of SSTs on surface climate variability and droughts over the United States. An analysis based on several models gives more creditability to the results since it relies on the assessment of impacts that are robust across different models. Coordinated atmospheric general circulation model (AGCM) simulations forced with three modes of SST variability were analyzed. The results show that the SST-forced precipitation variability over the central United States is dominated by the SST mode with maximum loading in the central Pacific Ocean. The SST mode with loading in the Atlanti...