摘要
金州地区是设施农业发展应用较广泛的地区,2013年3月9日金州地区出现大风降温天气,设施农业损失严重。本文利用MICAPS常规观测资料、区域自动站资料和天气学原理对本次金州地区致灾大风降温天气进行分析。结果表明,500 h Pa高空环流形势为两槽一脊型。变压造成的气压梯度风是这次地面大风形成的主要原因。强盛的高压向南移动的过程中,其前缘下沉气流及由强变压梯度造成的变压风共同作用导致金州地区出现大风降温天气。
Jinzhou District is widely use facility agriculture area. Facility agriculture lost seriously on March 9,2013,because there were a strong wind and cooling in Jinzhou District.Based on the MICAPS daily observation data,regional automatic station data and the principle of synoptic meteorology,a strong wind and cool weather which resulted in a disaster in Jinzhou District have been analyzed.The result showed that,500 hPa circulation situation of high altitude showed two troughs and one ridge.Pressure gradient wind which resulted from variable pressure was the main reason for the strong wind on the ground.In the process of puissant high pressure moved to south,downdraft of front edge and isallobaric wind caused by strong pressure gradient wind together led to strong wind weather in Jinzhou District.
出处
《现代农业科技》
2015年第3期272-273,共2页
Modern Agricultural Science and Technology
