文献类型：期刊文献

英文题名：Opposite responses of the diurnal amplitude of sea surface temperature to the Madden-Julian Oscillation

作者：Yan, Yunwei[1];Ling, Zheng[2];Chen, Changlin[3]

机构：[1]State Ocean Adm, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou, Zhejiang, Peoples R China;[2]Guangdong Ocean Univ, Guangdong Key Lab Coastal Ocean Variabil & Disast, Zhanjiang, Peoples R China;[3]Fudan Univ, Dept Environm Sci & Engn, Inst Atmospher Sci, Shanghai, Peoples R China

年份：2017

卷号：130

起止页码：30

外文期刊名：DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS

收录：SCI-EXPANDED(收录号：WOS:000423246200003)、、EI(收录号：20174604412200)、Scopus(收录号：2-s2.0-85033802844)、WOS

基金：This study is supported by the National Natural Science Foundation of China (Grants 91428206, 41606017, 41621064, and 91528304), the National Key Research and Development Program of China (2016YFC1401601). The authors wish to express their appreciation to Dr. Zuojun Yu for English modification.

语种：英文

外文关键词：Opposite responses; Diurnal amplitude of sea surface temperature; Madden-Julian Oscillation; Opposing wind speed anomalies

外文摘要：Both observations and empirical model results show that the responses of the diurnal amplitude of sea surface temperature (DSST) to the Madden-Julian Oscillation (MJO) in the tropical regions are opposite on the two sides of a pivot longitude, which varies seasonally. This pivot longitude occurs at 180 degrees in boreal winter, but moves to 150 degrees E in boreal summer. When the active convection center of the MJO is located to the west of the pivot longitude, reduced solar insolation and enhanced wind speed decrease DSST; when the active convection center moves to the east of the pivot longitude, reduced wind speed increases DSST. Due to the opposing wind speed anomalies across the pivot longitude, opposite responses to the MJO can be seen in latent heat flux anomalies, evaporation rate anomalies and surface roughness anomalies. These findings suggest that opposite responses in the tropical regions on the west and east of the pivot longitude to the MJO be common for variables that are closely related to wind speed.