大气和海洋科学快报（英文版）2021，Vol.14Issue(3)：19-24,6.
CO2浓度增加背景下季风区大气辐射加热响应的差异
Pressure level of maximum radiative heating enhancement in response to increasing CO2 over the global monsoon area
摘要
Abstract
Based on the 1％CO2 experiment of CMIP6,in response to increasing CO2,the summer-mean radiative heating (RH) over the global monsoon area (MA) generally features an increasing response in the mid-troposphere and a decreasing response in the lower and upper troposphere.The pressure level of the maximum RH increase over the Asian MA is the highest and largest in range (500-775 hPa);the maximum increases over the North African,South American,and Australian MA are at 550-600 hPa;throughout the North American MA,the maximum heating increase is at 600 hPa;and the levels of the maximum over South Africa are 600 and 775 hPa.For most of the global MA,the maximum enhancement of RH is at 500,550,and 600 hPa.It is mainly led by the increase in cloud water at and above the maximum level and the decrease in cloud water below,which leads to similar changes in total cloud mass.Because of the longwave heating (cooling) effect at the cloud base (top),the RH enhancements peak at those levels.For the northeast part of the Asian MA and southeast part of the South African MA,RH enhancement peaks at 700 and 775 hPa,mainly attributable to the cloud water reduction below.The reduction leads to similar changes in total cloud.Due to the longwave cooling effect at the cloud top,the reduction contributes to the RH enhancement at the corresponding maximum levels.关键词
大气辐射加热/季风区/C02/云Key words
Radiative heating/Increasing CO2/Global monsoon area/Cloud引用本文复制引用
Xia Qu,Gang Huang,Xiaocong Wang..CO2浓度增加背景下季风区大气辐射加热响应的差异[J].大气和海洋科学快报（英文版）,2021,14(3):19-24,6.基金项目
The study was supported by the National Natural Science Foundation of China[grant numbers 41831175 and 41530425],the Strategic Priority Research Program of the Chinese Academy of Sciences[grant number XDA20060501],the Key Deployment Project of the Centre for Ocean Mega-Research of Science,Chinese Academy of Sciences[grant number COMS2019Q03],and the Second Tibetan Plateau Scientific Expedition and Research (STEP) program[grant number 2019QZKK0102]. （STEP）
