“2007．07．07”江淮地区特大暴雨过程过程的地形敏感性试验分析  

Analysis of ＂2007.07.07＂ Jianghuai area rainstorm process the terrain sensitivityexperiment

作　　者：赵瑜[1] 赵桂香[1] 苗春生[2] 薄燕青[1] 

机构地区：[1]山西省气象台,太原030006 [2]南京信息工程大学气象台,南京210044

出　　处：《山西气象》2014年第4期1-5,共5页Shanxi Meteorological Quarterly

摘　　要：为了更好地探究暴雨强度和落区对农业防灾减灾的重要作用。本文利用WRF模式对2007年7月7—8日江淮地区的特大暴雨进行了地形人为变化的影响和模式地形分辨率的影响地形敏感性试验。得出控制试验和三个对比试验的雨带均呈现西北-东南走向带状分布；此次暴雨过程中,九华山、天目山、黄山一带的地形对江苏西部的强降水中心位置影响很大，使得其位置向东偏移了一个纬度左右，但对安徽境内的暴雨落区影响不大；幕阜山对此次暴雨过程影响最小；大别山一带的地形对安徽西北部的降雨量影响较大。采用较低分辨率的地形时，安徽西北部的强降雨中心降雨量明显偏小，而对江苏北部的强降雨中心降雨量并无影响；采用较高分辨率的地形时，两个强降雨中心的降雨量均未发生变化。In order to better explore the rainstorm intensity and falling area that is of great importance role to agricuhural disaster prevention and mitigation.This study by using the WRF model for 2007 July 7 - 8 days jianghuai rainstorms of terrain artificially change and terrain resolution change to terrain sensitivity experiment. The results show that： the control experiment and three contrast experiments showed the rain belt of Northwest- southeast direction of zonal distribution.Thestorm rainfallproeess ,JiuHuaMountain, Mountainhavegrea.t effect in the west of Jiangsu of the prec partial to one latitude or so , but have little influence on ipitation cell position the rainstorm area of Tian Mu Mountain, HuangShan , make its position toward the east be Anhui.MuFu Mountain has the least influence to this time Torrential Rain process ; The terrain of DaBieMountain has great influence on the north-west of Anhui precipitation. Using the higher resolution terrain, two strong rainfall center precipitation have been no changes.

关 键 词：WRF模式 暴雨落区 地形影响试验 

分 类 号：P458.121.1[天文地球—大气科学及气象学]