利用与非静力平衡中尺度气象模式完全耦合的区域沙尘数值模式，模拟研究这次强沙尘天气过程中沙尘浓度的空间分布结构和时间演变趋势。
The spatial and temporal distribution and development of dust concentration and structure were simulated by a coupled dust model with non-hydrostatic mesoscale model.
作者从干旱气候背景、环流状况、沙尘源、沙尘路径及天气系统等方面进行了分析，并集中对引发强沙尘暴的蒙古气旋进行了诊断分析。
This study was conducted in the aspects, such as, dry climatic background, circulation conditions, possible sand-dust sources, paths of sand transportation, and synoptic systems.
中国每年遭受的强沙尘暴天气由50年代的5次增加到了90年代的23次。
Every year China suffered strong sandstorm weather increased from 50 s five times in the 90 s of the 23 times.
根据地面冷空气入侵陕西的路径分析，将造成陕西强沙尘暴天气的冷空气路径分为西路、西北路、北路三条。
According to path analysis upon the invading cold air on surface, the cold air paths causing heavy sand storm processes in Shaanxi are divided into the west, the northwest, and the north way.
近年来，在我国的沙尘天气总体呈下降趋势的情况下，宁夏却呈现出高浓度、强降尘的沙尘天气转活跃的趋势。
In recent years, sandstorm weather tends to decrease on the whole in our country, however, Ningxia tams up the active tendency of sandstorm weather.
随沙尘天气强度逐渐加强（即从背景大气到浮尘、扬沙、沙尘暴、强及特强沙尘暴），它们的地面沙尘浓度约按3倍的比率依次递增；
With the intensifying of the dust weathers, the dust thickness, total suspended particulates (TSP) of dust at the surface will increase in geometric series at the rate of 3 times.
随沙尘天气强度逐渐加强（即从背景大气到浮尘、扬沙、沙尘暴、强及特强沙尘暴），它们的地面沙尘浓度约按3倍的比率依次递增；
With the intensifying of the dust weathers, the dust thickness, total suspended particulates (TSP) of dust at the surface will increase in geometric series at the rate of 3 times.
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