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JOURNAL OF DESERT RESEARCH ›› 2003, Vol. 23 ›› Issue (6): 642-645.

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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

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

CLC Number: