基于ECMWF再分析资料和中国地面观测资料，分析了1979 ~ 2001年春季蒙古气旋对同期中国北方沙尘暴的影响。
Based on the ECMWF reanalysis data and surface observation data of dust storms in China in 1979 ~ 2001, impact of Mongolian Cyclone on dust storms over Northern China in spring have been researched.
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.
引起本区域大风的天气系统主要有寒潮（冷锋）、蒙古（东北）低压、气旋、台风及雷雨。
The weather systems which cause the gales in the area are mainly cold wa- ve (cold front), low pressure zone in Mongolia(northeast), cyclone, typhoon and rainstorm.
结果表明：春季北方气旋活动频繁，存在明显的两个高值中心，分别位于蒙古国的中部和我国东北北部地区。
Results show that in spring Northern Cyclones have high frequencies and there are two distinct high value centers: one locates in the middle of Mongolia; the other in the north of northeast China.
结果表明：春季北方气旋活动频繁，存在明显的两个高值中心，分别位于蒙古国的中部和我国东北北部地区。
Results show that in spring Northern Cyclones have high frequencies and there are two distinct high value centers: one locates in the middle of Mongolia; the other in the north of northeast China.
应用推荐