This paper statistically analyzed the data of gale and duststorms from 1960 to 2004 observed at the six weather stations in Zhangye City in central Hexi Corridor during the past 45 years,then analyzed in detail the space-time distribution and forming cause of gale and duststorm weather,and has concluded their formative atmospheric circulation situation characteristics and influencing system.
统计了1960—2004年甘肃河西走廊中部张掖市6个气象站近45 a的实测大风沙尘暴资料,详细分析了该市大风沙尘暴天气的时空分布及形成原因,并归纳出其形成的大气环流形势特征和影响系统。