DOI: 10.1007/s00382-016-2978-x
Scopus记录号: 2-s2.0-84955258550
论文题名: Sensitivity of Asian Summer Monsoon precipitation to tropical sea surface temperature anomalies
作者: Fan L. ; Shin S.-I. ; Liu Z. ; Liu Q.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 47, 期: 2017-07-08 起始页码: 2501
结束页码: 2514
语种: 英语
英文关键词: East Asian Summer Monsoon
; Indian Summer Monsoon
; Precipitation
; Sensitivity
; Tropical SST anomalies
英文摘要: Sensitivity of Asian Summer Monsoon (ASM) precipitation to tropical sea surface temperature (SST) anomalies was estimated from ensemble simulations of two atmospheric general circulation models (GCMs) with an array of idealized SST anomaly patch prescriptions. Consistent sensitivity patterns were obtained in both models. Sensitivity of Indian Summer Monsoon (ISM) precipitation to cooling in the East Pacific was much weaker than to that of the same magnitude in the local Indian–western Pacific, over which a meridional pattern of warm north and cold south was most instrumental in increasing ISM precipitation. This indicates that the strength of the ENSO–ISM relationship is due to the large-amplitude East Pacific SST anomaly rather than its sensitivity value. Sensitivity of the East Asian Summer Monsoon (EASM), represented by the Yangtze–Huai River Valley (YHRV, also known as the meiyu–baiu front) precipitation, is non-uniform across the Indian Ocean basin. YHRV precipitation was most sensitive to warm SST anomalies over the northern Indian Ocean and the South China Sea, whereas the southern Indian Ocean had the opposite effect. This implies that the strengthened EASM in the post-Niño year is attributable mainly to warming of the northern Indian Ocean. The corresponding physical links between these SST anomaly patterns and ASM precipitation were also discussed. The relevance of sensitivity maps was justified by the high correlation between sensitivity-map-based reconstructed time series using observed SST anomaly patterns and actual precipitation series derived from ensemble-mean atmospheric GCM runs with time-varying global SST prescriptions during the same period. The correlation results indicated that sensitivity maps derived from patch experiments were far superior to those based on regression methods. © 2016, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53519
Appears in Collections: 过去全球变化的重建
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作者单位: Key Laboratory of Physical Oceanography/Collaborative Innovation Center of Marine Science and Technology, Ocean University of China, Qingdao, China; CIRES Climate Diagnostics Center, University of Colorado, Boulder, CO, United States; NOAA/Earth System Research Laboratory, Boulder, CO, United States; Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, United States; Laboratory of Climate, Ocean and Atmospheric Studies, Peking University, Beijing, China
Recommended Citation:
Fan L.,Shin S.-I.,Liu Z.,et al. Sensitivity of Asian Summer Monsoon precipitation to tropical sea surface temperature anomalies[J]. Climate Dynamics,2016-01-01,47(2017-07-08)