Recent progress in understanding the interaction between ENSO and the East Asian winter monsoon: A review
Recent progress in understanding the interaction between ENSO and the East Asian winter monsoon: A review
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DOI：
10.3389/feart.2023.1098517
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发表时间：
2023-01
期刊：
影响因子：
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通讯作者：
Tianjiao Ma;Wen Chen
中科院分区：
文献类型：
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作者：
Tianjiao Ma;Wen Chen
本文综述了东亚冬季风（EAWM）与El Niño-Southern涛动（ENSO）相互作用的最新研究进展。研究成果可归纳为两个方面：1)ENSO对EAWM的影响；2)EAWM对ENSO的影响。结果表明：当前气候模式模拟ENSO对EAWM影响的偏差普遍较观测值偏弱；中太平洋型ENSO对EAWM的影响总体弱于东太平洋型ENSO；热带印度洋降水异常对东亚ENSO遥相关的季内转换有促进作用；ENSO-EAWM关系是不稳定的，并受到海洋状态和温带大气现象（包括太平洋年代际涛动和北极涛动）的非线性调制。关于第二方面，研究表明，独立于ENSO信号的“纯”EAWM（简称EAWMres）可以导致西太平洋热带对流、东亚局地Hadley环流和赤道纬Walker环流的显著变化；CMIP6模型可以很好地预产生上述EAWMres效应，但偏差较弱。与EAWMres相关的热带对流和温带纬向流的变化对北美ENSO大气遥相关具有显著的调节作用。强东亚季风和强澳大利亚夏季风共同为厄尔Niño的出现提供了有利条件。
This paper reviews recent advances in understanding the interaction between the East Asian winter monsoon (EAWM) and El Niño-Southern Oscillation (ENSO). The achievements are summarized into two aspects: 1) the impacts of ENSO on the EAWM, and 2) effects of the EAWM on ENSO. For the first aspect, the results show that: the current climate model simulations of ENSO impacts on the EAWM have a common weaker bias than in the observations; The influence of central Pacific type ENSO on the EAWM is generally weaker than that of the eastern Pacific type ENSO; The precipitation anomalies in the tropical Indian Ocean tend to contribute to the intra-seasonal transition of ENSO teleconnection over East Asia; The ENSO-EAWM relationship is unstable and subject to non-linear modulation by the state of oceans and extratropical atmospheric phenomena, which include the Pacific Decadal Oscillation and the Arctic Oscillation. Regarding the second aspect, studies have shown that the “pure” EAWM (denoted as EAWMres), which is independent of the ENSO signal, can lead to significant variations in the tropical convection over the western Pacific, the local Hadley circulation over East Asia, and the Walker circulation over the equatorial latitudes; The CMIP6 models can preproduce the above EAWMres effects well, although with some weaker bias. The changes in tropical convection and extratropical zonal flow associated with the EAWMres tend to have a significant modulating effect on the ENSO atmospheric teleconnection over North America. A strong EAWM and a strong Australian summer monsoon coherently provide favorable conditions for the onset of El Niño.