摘要
利用常规天气资料和数值预报产品,应用天气学分析和诊断方法,结合宁夏冬季寒潮预报指标,对2008-2009年冬季2次寒潮天气从天气实况、环流背景、影响系统、天气成因等方面进行了对比分析。揭示了宁夏冬季2次寒潮天气的主要特点和成因,得到了一些宁夏冬季寒潮预报的指示信息。
On the basis of daily observation data and products of numerical forecast, two cold wave weather cases occurred in winter of 2008 -2009 in Ningxia region were discussed by using synoptic analysis method and combining cold wave forecast index in winter of Ningxia, including the circulation background, the influence system, synoptic formation cause, ect. The major features and formation causes of two cold wave were revealed, and some instructive information about cold wave forecast in winter in Ningxia region was obtained.
出处
《干旱气象》
2009年第2期142-147,共6页
Journal of Arid Meteorology
关键词
寒潮
天气成因
预报指标
cold wave
formation cause
forecast index
