沙漠与绿洲气象2016，Vol.10Issue(2)：25-30,6.DOI:10.3969/j.issn.1002-0799.2016.02.004
2013年北京地区一次强对流天气过程分析
Analysis of One Severe Convective Weather Process with Hails in 2013 in Beijing
摘要
Abstract
A severe convective weather along with hails, short term heavy rain occurred in Beijing from 08:00 June 11, 2013 to 08:00 June 12, 2013, synoptic scale environmental conditions, physical parameter fields. Doppler radar base reflectivity, velocity and one hour precipitation, wind profile and 5-minutes intensified automatic surface weather observation system data are analyzed. Results are showed as follows.(1)Temperature trough lagging behind height trough over the baroclinic zone in the troposphere is favorable to system developing.(2)Warm moist air continuous transportation from east coast supplied adequate water vapor and unstable energy.(3)The accumulation of unstable energy is trigger and sustainable condition for the severe convection weather.(4)There are some typical characteristics before hail falling in Tanghekou station, Huairou, such as meso-cyclone shown in radar velocity, hook echo shown in radar reflectivity, and echo pendency and three-body scatter spike shown in corresponding vertical cross-section.(5)The south wind components becoming obviously is beneficial to water vapor transportation. The existence of mesoscale shear line is favorable to air stream convergence. Strong maintaining and still echo is helpful to the short term heavy rain.关键词
强对流/三体散射/中气旋Key words
severe convection/three body scatter spike/meso-cyclone分类
天文与地球科学引用本文复制引用
李浚河,耿建军,张淅妍,伊群礼..2013年北京地区一次强对流天气过程分析[J].沙漠与绿洲气象,2016,10(2):25-30,6.基金项目
公益性行业专项(气象)科研专项"风廓线雷达组网观测资料业务化应用研究(201306136)"资助. （气象）
