黑龙江省初夏与盛夏2次极端暴雨过程对比分析  

Analysis of Infrequent Regional Heavy Rainfall in Heilongjiang Province in the First Month of Summer and Midsummer

作　　者：孔繁艳[1,2] 张杰[3] 吴英[4] 

机构地区：[1]南京大学大气科学学院,江苏南京210093 [2]黑龙江省七台河市气象局,黑龙江七台河154600 [3]中国气象局,北京100081 [4]黑龙江省气象台,黑龙江哈尔滨150030

出　　处：《安徽农业科学》2011年第9期5515-5517,共3页Journal of Anhui Agricultural Sciences

摘　　要：2009年6月18～19日和2010年8月14～15日,在东北冷涡的影响下,黑龙江省出现初夏和盛夏历史同期罕见的区域暴雨。利用常规观测和NCEP/NCAR再分析等资料对比分析,结果表明2次极端暴雨过程相同之处在于大降水都出现在500 hPa冷涡中心的东侧,850 hPa暖湿切变线北侧,700 hPa和850 hPa风向风速辐合线之间,湿层深厚的区域和假相当位温梯度大值处。区别在于初夏暴雨对于系统强度、水汽、不稳定能量和低空急流的要求均高于盛夏暴雨。From June 18th to 19th 2009 and from August 14th to 15th 2010,there were two infrequent regional heavy rainfalls in Heilongjiang province.It was analyzed with basic observation data and NCEP/NCAR data.The rainfalls occured with the east part of the low vortex on 500 hPa.The rainstorm belt happened in the north of the shear line on 850 hPa and the convergence area of wind direction or speed between 700 and 850 hPa.The rainstorm needs deep moisture air layer.The intensity,water vapor,energy and the low jet streams are more in the month of summer.

关 键 词：初夏暴雨 盛夏暴雨 水汽输送 中尺度分析 

分 类 号：P458.121.1[天文地球—大气科学及气象学]