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。
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 conditionresulted in such disastrous synoptic processes, this paper reveals some formation mechanisms of thesand-dust weather and diurnal variation features of synoptic phenomena such as whole gale, suspendeddust, sand-blowing and sand-dust storm etc., which are different from other sand-dust storms.
出处
《中国沙漠》
CSCD
北大核心
1995年第4期332-338,共7页
Journal of Desert Research
基金
国家自然科学基金资助项目
甘肃省自然科学基金资助
关键词
西北地区
沙尘暴
成因
Northwest China Sand-dust storm Formative cause
