标题:
东疆春季一次大风沙尘天气成因分析The Cause Analysis of a Windy Dust Weather in Spring in Eastern Xinjiang
作者:
冯瑶
关键字:
大风, 沙尘, 物理量, 成因分析Gale, Sand-Dust, Physical Quantity, Cause Analysis
期刊名称:
《Climate Change Research Letters》, Vol.5 No.2, 2016-04-05
摘要:
本文利用常规观测资料、数值预报和自动气象站资料，对东疆地区2015年春季一次大风沙尘天气进行了分析，结果表明：此次大风沙尘天气是高空低压槽、地面冷锋和冷高压移动过境所致，强的热力和动力条件是大风沙尘形成和维持的主要因素，大风沙尘发生的区域，大气处于高能不稳定状态，涡度、散度、总温度都有明显的指示意义。
Using the conventional observation data, numerical prediction and automatic weather stations data, this paper analyzed the windy dust weather in spring of 2015 in Eastern Xinjiang. The results showed that: the windy dust resulted from the upper low trough, surface cold front and moving cold high pressure, strong thermal and dynamic conditions were the main factors for the formation and maintenance of windy dust. In occurred area, the atmosphere is in a state of high energy. Vorticity, divergence and total temperature have obvious implications.