宁夏中北部一次区域暴雨天气过程分析  

Analysis of the Regional Rainstorm Process in Central and Northern Parts of Ningxia

作　　者：王巍 毛文书[2] 毛睿 WANG Wei;MAO Wen-shu;MAO Rui(Meteorological Bureau of Fushan District,Yantai,Shandong 265500;College of Atmospheric Sciences,Chengdu University of Information Science and Technology,Chengdu,Sichuan 610225;Meteorological Bureau of Neijiang City,Neijiang,Sichuan 641000)

机构地区：[1]山东省烟台市福山区气象局,山东烟台265500 [2]成都信息工程大学大气科学学院,四川成都610225 [3]四川省内江市气象局,四川内江641000

出　　处：《安徽农业科学》2018年第36期142-145,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(41775079);宁夏气象防灾减灾重点实验室开放基金项目(2014)

摘　　要：利用常规气象观测资料和NCEP的1°×1°再分析资料,对2012年7月29—30日发生在宁夏中北部地区的一次暴雨天气过程的环流形势、物理量进行诊断分析。结果表明,此次暴雨是受西太平洋副热带高压和短波槽以及低层切变线的影响,配合充沛水汽产生的;有利的高低空环流背景场和中尺度系统(切变线)的共同作用,满足了暴雨的产生、持续发展所需的强烈的上升运动、充沛的水汽来源和不稳定发展的热力条件。The conventional meteorological observations and NCEP 1° × 1° reanalysis data were used to diagnose the circulation situation and physical quantity of a rainstorm weather process occurring in the central and northern parts of Ningxia during July 29-30,2012.Results showed that the rainstorm was influenced by the western Pacific subtropical high and short wave trough and low-rise shear line,which were generated by the abundant water vapor; the advantage that high and low air circulation background field and mesoscale system( shear line) work together,which met the condition of the heavy rain,sustainable development of ascending motion,abundant water vapor sources and the thermal condition of the unstable development.

关 键 词：暴雨 环流形势 物理量 诊断分析 宁夏中北部 

分 类 号：P458[天文地球—大气科学及气象学]