摘要
利用常规观测资料及自动站资料对2014年4月23日敦煌强沙尘暴天气过程进行分析。结果表明:该次强沙尘暴天气过程地面影响系统为地面冷高压和地面热低压及两者过渡地带产生的地面强冷锋,冷空气促进暖空气进入敦煌,受地形影响,风速增大,再加上敦煌具备充足沙源,推动强沙尘暴天气发生。
Based on the conventional observation data and automatic station data, the process of strong sandstorm weather in Dunhuang on April 23, 2014 was analyzed. The results showed that the ground impact system of the strong sandstorm was a strong ground cold front generated by the ground cold high pressure and the ground hot low pressure and the transitional zone between the two. The cold air promoted the warm air to enter Dunhuang. Affected by the terrain, the wind speed increased, as well as there was sufficient source of sand in Dunhuang, the occurrence of strong sandstorm weather was promoted.
出处
《农业灾害研究》
2017年第9期52-53,共2页
Journal of Agricultural Catastrophology
关键词
敦煌
强沙尘暴
天气过程
分析
Dunhuang
Strong sandstorm
Weather process
Analysis
