气象2017，Vol.43Issue(4)：495-500,6.DOI:10.7519/j.issn.1000-0526.2017.04.012
2016年秋季中国气候特征及其可能成因
Features of Climatic Anomalies in China During the Fall of 2016 and the Possible Causes
摘要
Abstract
During the autumn of 2016,accompanied by higher surface air temperature,the national average of precipitation for China was much more than normal,ranked as the first since 1961.Particularly in the region to east of 110°E,the rainfall was 50％ more for near half of the weather stations.These anomalies were closely associated with the air-sea background in this season.When cold tongue developed in the equatorial middle and eastern Pacific in autumn,the western Pacific subtropical high would be stronger,stretching more westward and northward.Thus,more water vapor was transported to the north of China,coupled with the cold air activities carried by the northeast cold vortexes in early autumn and persistent trough near Baikal Lake later,giving rise to excessive rainfall.In addition,higher sea surface temperature in the equatorial western Pacific and warm pool intensified convections and increased typhoon activities,leading to more precipitation in east areas from South China to Yangtze-Huaihe River Valley.关键词
降水偏多/海温异常/西太平洋副热带高压/台风Key words
excessive precipitation/anomalous sea surface temperature/the western Pacific subtropical high/typhoon分类
天文与地球科学引用本文复制引用
竺夏英,宋文玲..2016年秋季中国气候特征及其可能成因[J].气象,2017,43(4):495-500,6.基金项目
国家重点基础研究发展计划(973计划)(2013CB430203)、公益性行业(气象)科研专项(GYHY201406024)、国家科技支撑计划项目(2015BAC03B04)和中国气象局核心业务发展专项(CMAHX20160503)共同资助 （973计划）
