Pressure level of maximum radiative heating enhancement in response to increasing CO_2 over the global monsoon area
Pressure level of maximum radiative heating enhancement in response to increasing CO_2 over the global monsoon area
复制标题
DOI：
10.1016/j.aosl.2021.100037
复制
发表时间：
2021
影响因子：
2.3
通讯作者：
Wang Xiaocong
中科院分区：
文献类型：
--
作者：
Qu Xia;Huang Gang;Wang Xiaocong
Based on the 1%CO_2 experiment of CMIP6, in response to increasing CO_2, 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.
