气象科学2017，Vol.37Issue(6)：776-783,8.DOI:10.3969/2015jms.0091
北半球夏季对流性降水特征及其与厄尔尼诺的关系
Characteristics of summer convective precipitation in the northern hemisphere and its relationship with El Ni(n)o
摘要
Abstract
Based on 3-hour CMORPH satellite precipitation data during 2003-2014,the convective precipitation characteristics of spatial distribution,occurrence probability,diurnal variation and its response to the E1 Ni(n)o were analysed.Results show that the convective precipitation is mainly distributed on the ocean near ITCZ,central North America,Southeast Asia and tropical Africa,etc.The convective precipitation occurrence probability is the largest between the intensity of 10-11 mm·h-1,and the probability of extreme strong convective precipitation of land is greater than that of ocean.The diurnal variation of convective precipitation is presented with two peaks on land,in the evening(18-20 LST) and midnight(22-01 LST).And its occurrence probability is lager between midnight and morning on ocean.The convective precipitation increases on ocean and decreases on land in developing years of El Ni(n)o,while the weakening years are opposite.Nonconvective precipitation on the eastern part of China is more during the El Ni(n)o years than that during normal years,and the results are different form the response of the convective precipitation.关键词
对流性降水/空间分布/日变化/厄尔尼诺Key words
Convective precipitation/Spatial distribution/Diurnal variation/El Ni(n)o分类
天文与地球科学引用本文复制引用
孙齐颖,余锦华,祁淼,张婉莹..北半球夏季对流性降水特征及其与厄尔尼诺的关系[J].气象科学,2017,37(6):776-783,8.基金项目
国家重点基础研究计划(973计划)项目(2015CB453200) （973计划）
国家自然科学基金资助项目(41730961 （）
41575083 （）
41575108) （）
