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中国沙漠 ›› 1995, Vol. 15 ›› Issue (4): 332-338.

• 论文 • 上一篇    下一篇

我国西北地区“94.4”沙尘暴成因探讨

王式功1, 杨德保1, 周玉素2, 巴特尔2, 辛春兰3   

  1. 1. 兰州大学大气科学系, 兰州 730000;
    2. 兰州市气象局, 兰州 730020;
    3. 甘肃省科学院, 兰州 730000
  • 收稿日期:1994-10-17 修回日期:1995-03-15 出版日期:1995-12-20 发布日期:1995-12-20
  • 基金资助:
    国家自然科学基金资助项目(49475268)和甘肃省自然科学基金资助

ANALYSIS ON THE FORMATIVE CAUSES OF SAND-DUST STORMS IN THE NORTHWEST CHINA DURING 3~12 APRIL 1994

wang Shigong1, Yang Debao1, Zhou Yusu2, Ba Teer2, Xin Chunlan3   

  1. 1. Department of Atmospheric Science, Lanzhou University, Lanzhou 730000;
    2.Lanzhou Meterorological Service Lanzhou.730020;
    3. Gansn Acadermy of Sciences, Lanzhou 730000
  • Received:1994-10-17 Revised:1995-03-15 Online:1995-12-20 Published:1995-12-20

摘要: 1994年4月3日~12日,在我国西北地区发生了历史上罕见的以浮尘天气为主的沙尘暴。本文通过对造成这次灾害天气过程的大尺度环境形势、主要天气系统和前期气候背景与下垫面条件的全面系统分析,揭示了有别于其它沙尘暴天气过程的某些成因机制以及大风、浮尘、扬沙和沙暴等天气观象的日变化特征。

关键词: 西北地区, 沙尘暴, 成因探讨

Abstract: on 3~12 April 1994,an exceptionanlly severe sand-dust storm dominated by suspended dust swept over the Northwest China. Through systematic analysis on the large-scale environment situation, major synoptic system, pre-stage climatic background and underlying surface condition resulted in such disastrous synoptic processes, this paper reveals some formation mechanisms of the sand-dust weather and diurnal variation features of synoptic phenomena such as whole gale, suspended dust, sand-blowing and sand-dust storm etc., which are different from other sand-dust storms.

Key words: Northwest China, Sand-dust storm, Formative cause