现代农业科技Issue(2)：227-229,3.
顺义地区一次大风天气过程分析
Process Analysis of Gale Weather in Shunyi Area
摘要
Abstract
Using the regular meteorological data to analyze the gale occurred in Shunyi area on March 23,2012. The results showed that the upper trough as the main influential system was the reason for this gale. The cold air brought by 500 hPa upper-air circulation was directed by northerly winds heading down south,which caused this gale. With the ground frontal passage and the increased barometric gradient in Beijing upstream,the gale occurred in Shunyi area. When the air pressure in Shunyi area dramatically increased,the windy weather ended. The physical quantity analysis showed that Beijing at the back of low pressure which meant that the northwest wind prevailed and was not favorable for the water-vapor transfer of lower layers. The water vapor of upper air was in poor condition. Therefore,the influence of the above synoptic situation on Shunyi area was the gale without precipitation.关键词
大风/天气形势/物理量/北京顺义Key words
gale/synoptic situation/physical quantity/Shunyi Beijing分类
天文与地球科学引用本文复制引用
杨保华..顺义地区一次大风天气过程分析[J].现代农业科技,2015,(2):227-229,3.
