摘要
为了解台风降水云团的动力和热力结构及微物理特性,利用TRMM卫星观测资料,结合NCEP再分析资料,综合分析了"麦莎"台风的降水水平和垂直结构特征,并对TRMM 3B42给出的台风降水时空分布特征进行了评估分析。结果表明:(1)"麦莎"台风以层云降水为主,对总降水量的贡献也最大,雨强集中在20 mm/h以下,且降水有明显的不对称性;台风成熟时,有2个或2个以上的螺旋雨带,外螺旋雨带更为深厚;随着台风增强,强雨带收缩,登陆减弱后,强雨带由中心向外围扩展,降水高度减小。(2)由于融合了地面观测降水,TRMM 3B42降水产品给出的"麦莎"台风降水与地面自动站有着更为相似的时空分布特征。
The paper aims to understand the dynamic and thermodynamic structure and microphysicalproperties of typhoon precipitation and cloud cluster. The authors studied the horizontal and vertical structureof precipitation of typhoon＂Matsa＂by using TRMM satellite and NCEP data, and then the temporal-spatialdistribution of precipitation measured by TRMM 3B42 was analyzed and assessed. The results showed that：firstly, stratus precipitation made the greatest contribution to the total precipitation, which concentrated below20 mm/h, and the precipitation distribution had obvious asymmetry; there were two or more strong spiralrainfall belts in typhoon mature stage and the outside one was deeper, which shrank to the center with typhoonstrengthened and extended from the typhoon eye to the periphery once it hit land, in addition, the maximumprecipitation height decreased with the enhancement of typhoon; secondly, due to the integration of the groundobservation precipitation, temporal-spatial distributional characteristics of＂Matsa＂precipitation measured byTRMM 3B42 products were more similar with that of ground automatic station.
出处
《中国农学通报》
2016年第26期143-156,共14页
Chinese Agricultural Science Bulletin
基金
行业专项(气象)"非均匀下垫面下雷暴和强对流生消发展的影响"(GYHY201006004)
中国气象局预报员专项"利用卫星和地面观测资料的台风暴雨个例分析"(CMAYBY2015-033)
