摘要
利用浙江省34站1960—2009年3—5月累积降水量及NCEP/NCAR 2.5°×2.5°的多个再分析气象资料,采用趋势分析、相关分析以及合成分析等方法,对浙江省春季降水量的时空分布、影响浙江省春季降水的整层大气的水汽水平输送特征、各层水汽垂直输送以及各边界的水汽输送等特征进行了分析。揭示了利于浙江省春季降水的水汽水平输送路径、垂直输送的相关区域,并阐述了影响春季降水量的环流特征以及区域各边界的水汽输送对浙江省春季降水的正、负作用。
By means of the precipitation data from 34 stations in Zhejiang Province and NCEP/NCAR monthly mean reanalysis data from March to May of 1960 to 2009,the climate characteristics of spring precipitation and the horizontal transportation in the whole atmospheric,the vertical transportation at various levels in the troposphere,and the regional cross-boundary transportation of water vapor over Zhejiang Province are investigated,using the methods of trend analysis and correlation analysis and comprehensive analysis.The primary transporting paths and the areas related to vertical transportation of water vapor,as well as the circulation patterns influencing the spring precipitation,are expatiated.It is found that water vapor transportation fluxes through different boundaries have different contributions to spring precipitation in Zhejiang Province.
出处
《气象科技》
北大核心
2011年第2期141-146,共6页
Meteorological Science and Technology
基金
浙江省重大项目"三江流域定量降水及其引发灾害预报方法研究"资助
关键词
春季降水
趋势分析
水汽输送
spring precipitation
water vapor transportation
trend analysis
