Warm-sector heavy rainfall （WSHR） events in China have been investigated for many years. Studies have investigated the synoptic weather conditions during WSHR formation, the categories and general features, the triggering mechanism,and structural features of mesoscale convective systems during these rainfall events. The main results of WSHR studies in recent years are summarized in this paper. However, WSHR caused by micro-to mesoscale systems often occurs abruptly and locally, making both numerical model predictions and objective forecasts difficult. Further research is needed in three areas:（1） The mechanisms controlling WSHR events need to be understood to clarify the specific effects of various factors and indicate the influences of these factors under different synoptic background circulations. This would enable an understanding of the mechanisms of formation, maintenance, and organization of the convections in WSHR events.（2） In addition to South China, WSHR events also occur during the concentrated summer precipitation in the Yangtze River-Huaihe River Valley and North China. A high spatial and temporal resolution dataset should be used to analyze the distribution and environmental conditions, and to further compare the differences and similarities of the triggering and maintenance mechanisms of WSHR events in different regions.（3） More studies of the mechanisms are required, as well as improvements to the model initial conditions and physical processes based on multi-source observations, especially the description of the triggering process and the microphysical parameterization. This will improve the numerical prediction of WSHR events.
类型: 期刊论文
作者: Jianhua SUN,Yuanchun ZHANG,Ruixin LIU,Shenming FU,Fuyou TIAN
来源: Advances in Atmospheric Sciences 2019年12期
年度: 2019
分类: 基础科学
专业: 气象学
单位: Key Laboratory of Cloud-Precipitation Physics and Severe Storms, Institute of Atmospheric Physics,Chinese Academy of Sciences,Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,National Meteorological Center China Meteorological Administration
基金: supported by the National Natural Science Foundation of China (Grant No. 41675045),National Key R&D Program of China (Grant No. 2018YFC1507200),the Jiangxi Key Basic Research and Development Project of China (Grant No. 20171BBG70005)
分类号: P426.62
页码: 1299-1307
总页数: 9
文件大小: 704K
下载量: 31
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