城市化和西太平洋副热带高压增强对中国复合热浪的协同作用  

The synergy of urbanization and western Pacific subtropical high intensification on compound heat waves in China

作　　者：高焕妍 沈新勇[1,2] 董伟 赵亮 罗亚丽[4] 王咏青[1] GAO Huanyan;SHEN Xinyong;DONG Wei;ZHAO Liang;LUO Yali;WANG Yongqing(Key Laboratory of Meteorological Disaster,Ministry of Education(KLME)/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&Technology,Nanjing 210044,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519082,China;State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China;State Key Laboratory of Severe Weather(LASW),Chinese Academy of Meteorological Sciences,Beijing 100081,China)

机构地区：[1]南京信息工程大学气象灾害教育部重点实验室/气候与环境变化国际合作联合实验室/气象灾害预报预警与评估协同创新中心,江苏南京210044 [2]南方海洋科学与工程广东省实验室(珠海),广东珠海519082 [3]中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室,北京100029 [4]中国气象科学研究院灾害天气国家重点实验室,北京100081

出　　处：《大气科学学报》2023年第1期119-131,共13页Transactions of Atmospheric Sciences

基　　金：国家重点研发计划项目(2019YFC1510400);国家自然科学基金资助项目(41975054,41930967,41790471);中国科学院战略性先导科技专项(XDA20100304)。

摘　　要：基于黑球湿球温度识别了中国复合热浪,并定量分析了城市化和西太平洋副热带高压(简称西太副高)对中国复合热浪的协同作用。结果表明:1979—2019年中国复合热浪的发生天数、强度和影响范围都在逐步上升,尤其在2010年以后出现跃升,比20世纪80年代增大了4倍左右;城市化快速发展和西太副高增强协同加剧了中国复合热浪;较早发展的城市化对热浪天数、强度、范围增长的贡献分别是9.2%、12.5%、7.5%,而同期西太副高的增强对三类热浪指数有约30%的正贡献,甚至在考虑全球变暖对西太副高的加强作用时,西太副高的贡献增至70%左右。这表明,快速发展的城市化和全球变暖背景下增强的西太副高的协同作用可以解释80%以上21世纪初中国复合热浪的跃升。Compound heat waves consider the effect of temperature,humidity,wind speed and radiation simultaneously,and have a major impact on human health and ecological diversity.Based on the wet-bulb globe temperature(WBGT),this paper identifies the compound heat waves in China,and quantitatively analyzes the synergy of urbanization and the Western Pacific subtropical high(WPSH)intensification on the compound heat waves in China.Results show that the number of days,intensity and impact range of compound heat waves in China are gradually increasing from 1979 to 2019,especially after 2010,which are about four times larger than those in the 1980s.The synergy of urbanization rapid development and WPSH intensification has intensified the compound heat waves in China.The early urbanization has contributed 9.2%,12.5%and 7.5%to the increases in the number of days,intensity and impact range of the compound heat waves,respectively.During the same period,WPSH has a positive contribution of about 30%to the three heat wave indexes,and the contribution can be up to about 70%when the strengthening effect of global warming on WPSH is considered.It suggests that the synergy of the rapid urbanization and the enhanced WPSH under the background of global warming can explain more than80%of the jump in the compound heat waves in China at the beginning of the 21st century.

关 键 词：复合热浪 城市化 西太平洋副热带高压 协同作用 

分 类 号：P423[天文地球—大气科学及气象学]