安徽农业科学2011，Vol.39Issue(31)：19446-19448,19484,4.
卫星资料在强对流性天气诊断分析中的应用
Application of Satellite Data in Diagnosis and Analysis of Severe Convective Weather
康桂红 1杨夯 2杨帆2
作者信息
- 1. 山东省泰安市气象局,山东泰安271000
- 2. 重庆大学电气工程学院,重庆400044
- 折叠
摘要
Abstract
Convection compound formed and developed by shear line cloud system were analyzed, the application of satellite data in the analysis of severe convective weather diagnosis were discussed to reveal the characteristics of severe convective wealher under the influence of shear line. The results showed that this severe convective weather process was generated by the influence of shear line of lower layers under the control of northwest airstream in the high; the stratification of up cold and low warm resulted in slrong convection, and generated thunder and the stronger of low-level jet stream, ensured the supply of rainstorm. The stratification of up cold and low warm led to strong convection, resulting in thunder and lightning, strengthened the development of low-level jet, and ensured supply of water vapor of Shandong, finally causing the heavy rain. Low-level heavy south warm and wet airflow went northward, the northern edge of which was wet tongue and high-energy tongue areas with unstable atmospheric stratification; in view of power field, warm shear line located in northern of Shandong, wind direction converged as well as wind speed, resulting in strong vertical movement. Strong warm and wet airflow caused development of inverted trough on the ground. This shear line storm was impacted by two convective clouds. One is low-level jet-generated convective clouds, formed by convective clouds generated in southwest of Shandong at 01 :00 am on 8th corresponding with top of low-level southwest warm and wet airflow, which moved to south of central Shandong and formed convective convergence MCC. The odier one is the convective clouds corresponding with low-level warm shear line in northwest of Shandong, which combined with the MCC in south of middle Shandong and formed one powerful MCC which impacted the whole area of Shandong Province. The slrong convective weather was mainly caused by the generation, combination and extension of the second shear line convective clouds and its strengthening to the continuance of the first MCC, and finally resulted in the generation of strong convective weather.关键词
卫星资料/天气形势/强对流性天气/诊断分析Key words
Satellite data/ Weather situation/ Strong convective weather/Diagnosis and analysis分类
天文与地球科学引用本文复制引用
康桂红,杨夯,杨帆..卫星资料在强对流性天气诊断分析中的应用[J].安徽农业科学,2011,39(31):19446-19448,19484,4.
