安徽农业科学2011，Vol.39Issue(31)：19471-19473,3.
山东西北部两次局地大暴雨过程对比分析
Comparative Analysis of Two Local Heavy Rains in Northwestern Shandong
朱义青 1曹兴锋 1刘英杰 1孙长征 2胡顺起1
作者信息
- 1. 山东省临沂市气象局,山东临沂276004
- 2. 山东省济南市气象局,山东济南250002
- 折叠
摘要
Abstract
[Objective] The aim was to comparatively analysis two local heavy rains in northwestern Shandong Province. [ Method] By using observation data from automatic weather station, sounding data and NCEP reanalysis data, two local heavy rains at night on July 18 and August 9 in 2010 in northwestern Shandong was comparatively analyzed from the aspects of circulation situation, influence system and physical field, and the internal structure and possible formation mechanism of local heavy rain in Shandong were discussed further. [Result] The two heavy rains occurred in the forepart of southwest air in front of 500 hPa trough, and there was stronger atmospheric baroclinicity in front zone near 850 hPa. The two heavy rains were affected by southwest warm and humid airflow at low level and shear line at 850 hPa; heavy rain often appeared in intensive area behind high energy tongue, and heavy rain area corresponded with the area with high vertical speed. From the differences, during the previous heavy rain process, there was obvious southwest low level jet and shear line at 700 hPa, and the area with large precipitation was located in the south of warm shear line at 700 hPa; during the latter heavy rain process, there was no obvious southwest low level jet and shear line, and the area with large precipitation was between two high presures. [Conclusion] The study could provide valuable thinking for the forecast for this kind of rainstorm in the further.关键词
局地大暴雨/天气过程/对比分析/山东西北部Key words
Local heveavy rain/ Weather process/ Comparative analysis/ Northwestern Shandong分类
天文与地球科学引用本文复制引用
朱义青,曹兴锋,刘英杰,孙长征,胡顺起..山东西北部两次局地大暴雨过程对比分析[J].安徽农业科学,2011,39(31):19471-19473,3.
