Remote impacts from the tropical Indian Ocean on haze pollution in January over the Yangtze River Delta

作     者：Shuwei Xia Zhicong Yin Huijun Wang Shuwei Xia;Zhicong Yin;Huijun Wang

作者机构：Key Laboratory of Meteorological DisasterMinistry of Education/Joint International Research Laboratory of Climate and Environment Change(ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD)Nanjing University of Information Science&TechnologyNanjingChina Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)ZhuhaiChina Nansen-Zhu International Research CenterInstitute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina 

出 版 物：《Atmospheric and Oceanic Science Letters》 (大气和海洋科学快报（英文版）)

年 卷 期：2021年第14卷第3期

页      面：49-53页

核心收录：

学科分类：0710[理学-生物学] 0908[农学-水产] 07[理学] 0707[理学-海洋科学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 0816[工学-测绘科学与技术] 0825[工学-航空宇航科学与技术] 

基　　金：The National Key Research and Development Plan[grant number 2016YFA0600703] the National Natural Science Foundation of China[grant numbers 41705058,91744311,and 41991283] funding from the Jiangsu Innovation and Entrepreneurship team,supported this research 

主　　题：Sea surface temperature Tropical indian ocean Haze pollution CESM-LE 

摘      要：Haze events in the Yangtze River Delta(YRD)region have recently been occurring more frequently and with dramatic damages inflicted on human and ecosystem *** this study,observational analyses and numerical experiments are used to investigate the meteorological conditions associated with haze pollution,with the main emphasis on the impacts of the preceding sea surface temperature(SST)in the tropical Indian Ocean(TIO).The results show that the December SST in the TIO has a significant positive correlation with the number of haze days in January over the YRD,especially during 1999–*** December,the positive SST anomalies in the TIO heat the overlying air,and then in the following January provoke a Matsuno–Gill-like pattern and a series of Rossby wave–like trains in the upper troposphere,transmitting signals to the YRD and downstream through the Sea of Japan and Aleutian *** cyclonic anomalies in the YRD seem to significantly weaken the East Asian jet stream by means of anomalous easterlies,and subsequently affect the climate in the *** the surface,the increased surface air temperature and southerly winds,along with the decreased surface wind speed,accompanied by influences from upstream areas,are conducive to the occurrence of *** observational results were also reproduced well in CESM-LE simulations.