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中国沙漠 ›› 2003, Vol. 23 ›› Issue (6): 642-645.

• 研究论文 • 上一篇    下一篇

环流及冷空气类型与宁夏沙尘暴落区的对应关系

赵光平1,2, 陈楠2, 杨建玲2, 李艳春2   

  1. 1. 中国气象局 兰州干旱气象研究所, 甘肃 兰州 730030;
    2. 宁夏气象防灾减灾重点实验室, 宁夏 银川 750002
  • 收稿日期:2002-11-25 修回日期:2003-01-13 出版日期:2003-12-20 发布日期:2003-12-20
  • 作者简介:赵光平(1962-),男(汉族),山东牟平市人,高级工程师,主要从事天气预报业务及灾害性天气防灾减灾对策研究。E-mail:zgpnet@sina.com
  • 基金资助:
    国家自然科学基金项目(40065002);宁夏自然科学基金项目(A1017)共同资助

Corresponding Relationship of Circulation and Cold Air Types with Predicted Area of Sand storm

ZHAO Guang-ping1,2, CHEN Nan2, YANG Jian-ling2, LI Yan-chun2   

  1. 1. Lanzhou Insitute of Arid Metorelogy, China Meteorological Bureau, Lanzhou 730000, China;
    2. The Ningxia Laboratory for Meteorological Disaster Prevention and Reduction, Yinchuan 750002, China
  • Received:2002-11-25 Revised:2003-01-13 Online:2003-12-20 Published:2003-12-20

摘要: 利用台站1970-1997年常规地面观测资料及NCEP/NCAR(1970-1997年)逐日全球再分析资料,按不同分类标准,对同期发生的沙尘暴天气过程的环流背景、冷空气路径及影响系统等进行合成对比诊断分析。结果表明:在相同的大尺度环流背景和冷空气路径下,由于影响系统的类型、强度、位置等不同,其影响区域会有所差异,且高低层大气的温度距平场及纬向风距平场的不同分布,与沙尘暴的落区也有密切关系。同时,依据诊断分析的结果,简要给出了宁夏沙尘暴天气的预报着眼点。

关键词: 沙尘暴, 落区, 环流, 冷空气路径, 宁夏

Abstract: The circulation background,path of cold air and correlation system of sandstorm weather process were analyzed according to different classified methods and in term of composite diagnostic analysis by using the normal meteorological data which came from selected weather station and global reanalyzed daily data of NCEP/NCAR from 1970 to 1997.The results show that,on the condition of same large scale circulation background and path of cold air,the affected area of sandstorm will be different,and there have affinity between different distribution of anomaly fields of temperature and wind with area of sandstorm due to the difference of the type,the intensity and the position of correlation system.At the same time,we got the outline for forecasting the sandstorm in Ningxia based on the result of diagnostic analysis.

Key words: sandstorm, predicted area, circulation, path of cold air, Ningxia

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