灾害学2018，Vol.33Issue(2)：38-44,7.DOI:10.3969/j.issn.1000-811X.2018.02.009
适当冷空气对秋季台风暴雨增幅作用研究
Impact of Weak Cold Air on the Enhancement of Rainstorms Caused by Autumn Typhoons
摘要
Abstract
The differences between rainstorms caused by autumn typhoons affecting Guangxi with and without the influence of cold air,are analyzed.The study time period is between September and November,from 1980 to 2016.The research shows that:the rain has a significant increase under the presence of weak cold air.While it is unfavorable to form rainstorms when the cold air is relatively strong or there is no cold air.The amount of the stations where rainstorms occur increases 83％ when the cold air is weak.It decreases 73％ and 87％ when the cold air is relatively strong and when there is no cold air,respectively.The amount of stations where rainstorms occur with the influence of cold air can be 15 times larger than without that of cold air.Also,a contrast analysis is performed between two pairs of similar typhoons named Son ～ Tinh (1223) and Mike (9027),as well as Hagupit (0814) and Sally (9615).Each pair of the typhoons have similar routes,strength,situations and the supplements of warm and humid air,but only differ in whether they are under the influence of cold air or not.The results show that weak cold air is the major factor to intensify the rainstorms caused by autumn typhoons.关键词
冷空气/秋季台风/暴雨增幅/广西Key words
autumn typhoon/cold air/rainstorm enhancement分类
资源环境引用本文复制引用
黄莉,白龙,李紫甜..适当冷空气对秋季台风暴雨增幅作用研究[J].灾害学,2018,33(2):38-44,7.基金项目
中国气象局预报员专项(CMAYBY2014-051) （CMAYBY2014-051）
广西气象局重点项目(桂气科201302) （桂气科201302）
南宁市科技局项目(20153257) （20153257）
