Precipitation Responses to Radiative Effects of Ice Clouds:A Cloud-Resolving Modeling Study of a Pre-Summer Torrential Precipitation Event  

作　　者：Xinyong SHEN Wenyan HUANG Chunyan GUO Xiaocen JIANG 

机构地区：[1]Key Laboratory of Meteorological Disaster,Ministry of Education/Joint International Research Laboratory ofClimate and Environment Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,Nanjing,Jiangsu 210044,China [2]Changzhou Meteorological Bureau,Changzhou,Jiangsu 213022,China [3]Inner Mongolia Meteorological Service Center,Hohhot,Inner Mongolia 010051,China

出　　处：《Advances in Atmospheric Sciences》2016年第10期1137-1142,共6页大气科学进展（英文版）

基　　金：supported by the National Key Basic Research and Development Project of China(Grant Nos.2013CB430103 and 2015CB453201);the National Natural Science Foundation of China(Grant Nos.41375058 and 41530427);Jiangsu Natural Science Key Project(Grant No.BK20150062);the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)

摘　　要：The precipitation responses to the radiative effects of ice clouds are investigated through analysis of five-day and hori- zontally averaged data from 2D cumulus ensemble model experiments of a pre-summer torrential precipitation event. The exclusion of the radiative effects of ice clouds lowered the precipitation rate through a substantial reduction in the decrease of hydrometeors when the radiative effects of water clouds were switched on, whereas it increased the precipitation rate through hydrometeor change from an increase to a decrease when the radiative effects of ice clouds were turned off. The weakened hydrometeor decrease was associated with the enhanced longwave radiative cooling mainly through the decreases in the melt- ing of non-precipitating ice to non-precipitating water. The hydrometeor change from an increase to a decrease corresponded to the strengthened longwave radiative cooling in the upper troposphere through the weakened collection of non-precipitating water by precipitation water.The precipitation responses to the radiative effects of ice clouds are investigated through analysis of five-day and hori- zontally averaged data from 2D cumulus ensemble model experiments of a pre-summer torrential precipitation event. The exclusion of the radiative effects of ice clouds lowered the precipitation rate through a substantial reduction in the decrease of hydrometeors when the radiative effects of water clouds were switched on, whereas it increased the precipitation rate through hydrometeor change from an increase to a decrease when the radiative effects of ice clouds were turned off. The weakened hydrometeor decrease was associated with the enhanced longwave radiative cooling mainly through the decreases in the melt- ing of non-precipitating ice to non-precipitating water. The hydrometeor change from an increase to a decrease corresponded to the strengthened longwave radiative cooling in the upper troposphere through the weakened collection of non-precipitating water by precipitation water.

关 键 词：hydrometeor change precipitation rate longwave radiative cooling local atmospheric cooling 

分 类 号：P426.6[天文地球—大气科学及气象学]