文献类型：期刊文献

英文题名：Large-scale dynamic, heat and moisture structures of monsoon-influenced precipitation in the East Asian monsoon rainy area

作者：Zhang, Chunyan[1,2];Wang, Donghai[1,2];Pang, Zihao[3];Zhang, Yu[4];Jiang, Xiaoling[5];Zeng, Zhilin[1,2];Wu, Zhenzhen[1,2]

机构：[1]Sun Yat Sen Univ, Sch Atmospher Sci, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou, Peoples R China;[2]Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China;[3]China Meteorol Adm, Natl Meteorol Informat Ctr, Beijing, Peoples R China;[4]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang, Peoples R China;[5]China Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China

年份：2021

卷号：147

期号：735

起止页码：1007

外文期刊名：QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY

收录：SCI-EXPANDED(收录号：WOS:000605767500001)、、EI(收录号：20210209761355)、Scopus(收录号：2-s2.0-85099112376)、WOS

基金：National Natural Science Foundation of China and Macau Science and Technology Development Joint Fund (NSFC-FDCT), China and Macau, Grant/Award Number: 41861164027; Science and Technology Planning Project of Guangdong Province of China, Grant/Award Number: 2017B020244002; National Natural Science Foundation of China, Grant/Award Numbers: 41705140, 91437221

语种：英文

外文关键词：constrained variational analysis; heating profile; large-scale structures; monsoon-influenced precipitation; upward motion

外文摘要：This study investigated large-scale dynamic structures along with heat and moisture budgets associated with monsoon-influenced precipitation over a typical rainy domain in the East Asian monsoon region. Large-scale dynamically and thermodynamically consistent forcing data based on multiple measurements were produced by a one-dimensional constrained variational analysis method. Using the forcing data, distinct characteristics of large-scale states were documented for cases of notable pre-monsoon rainfall before the South China Sea monsoon onset (SCSMO), extreme rainfall during SCSMO, and persistent strong rainfall after SCSMO. The pre-monsoon period mainly resulted from weak and discrete cloud regimes. The extreme-rain period was associated with a severe deep convective system moving from the west, and the persistent-rain period was related to moderate convective cells separated from the strong convective system over the northern South China Sea. Large-scale features including vertical velocity, wind convergence, and diabatic heating and drying were the strongest (weakest) during the extreme-rain (pre-monsoon) period. For the pre-monsoon and persistent-rain periods, the period-averaged profiles of vertical velocity and diabatic heating and drying showed a one-peak structure. However, during the extreme-rain period, a leap-forward mutation was seen in the vertical structure and magnitude of these large-scale states. The multiple peaks shown in the vertical profiles of vertical velocity and diabatic heating during the extreme-rain period may indicate various convective cloud systems co-existed. The diabatic heating profiles of extreme rainfall indicated that the first rainfall peak was related to the successive occurrence of stratiform anvils and convective clouds, while the second rainfall peak, which was most intense, was associated with shallow convective clouds, severe deep convective clouds, and detraining stratiform anvils.