气象2017，Vol.43Issue(8)：924-935,12.DOI:10.7519/j.issn.1000-0526.2017.08.003
中亚低涡造成新疆北部区域暴雨成因分析
Analysis on Rainstorm Caused by Central Asian Vortex in Northern Xinjiang
摘要
Abstract
Using conventional observation data,automatic weather station data,the high resolution model of ECMWF data,and FY-2E TBB data,1 km and FNL data,the reason for regional rainstorm in Northern Xinjiang in 20-21 June 2013 was analyzed and compared with the early analysis of rainstorm that had happened in Southern Xinjiang.The results showed that the Central Asian vortex was the main influencing system.The rainstorm was directly caused by in the middle and lower troposphere and the ground mesoscale system.Meso-γ convection system was monitored by both the cloud image and the automatic station wind field.Affected by the terrain of the Altai Mountains and Sharbasitao,the mesoscale low vortex and the cyclonic vortex along the piedmont from the southeast to the northwest at 850 hPa rotated,stranded and enhanced,making the divergence structure of low-level convergence and high-level divergence formed and the strongest vertical upward movement at the same time enhanced rainstorm to increase.This heavy rain process was different from the heavy rain in Southern Xinjiang.关键词
区域性暴雨/中亚低涡/中小尺度特征/概念模型Key words
regional rainstorm/Central Asian vortex/small and medium scale features/concept model分类
天文与地球科学引用本文复制引用
庄晓翠,李如琦,李博渊,李健丽,孙智娟..中亚低涡造成新疆北部区域暴雨成因分析[J].气象,2017,43(8):924-935,12.基金项目
中国气象局预报员专项(CMAYBY2017-083)、中央级公益性科研院所基本科研业务费(IDM2016001)、新疆维吾尔自治区人民政府项目科技支撑课题(TUHA201511)、中国沙漠气象科学研究基金(SQJ2015001)和中亚大气科学研究基金(CASS201707)项目共同资助 （CMAYBY2017-083）
