气象与环境学报Issue(3):98-103,6.DOI:10.3969/j.issn.1673-503X.2015.03.015
1956-2011年黑龙江省龙卷风气候特征
Climate characteristics of tornado from 1956 to 2011 in Heilongjiang province
摘要
Abstract
Tornadoes events from 1956 to 201 1 in Heilongjiang province were classified by a Fujitec-Pearson meth-od.Temporal and spatial characteristics of tornadoes were analyzed,and the related large-scale circulation and for-mation mechanism for typical cases were discussed.The results show that there is apparent temporal and spatial distribution for those tornado events from 1956 to 201 1 in Heilongjiang province.The frequency of tornado is high-er during 1960s to 1980s,while it is the lowest in 1990s,and it increases during 2001 to 2011.Most tornadoes oc-cur in summer,especially in July,and most are from afternoon to early evening.Spatial distribution of tornadoes suggests that frequent area of tornadoes is in Suihua of Heilongjiang province,which is related with the local geo-graphical location,climatic conditions and atmospheric circulation.Unstable situation,warm moisture transports and the vertical motion of cold and warm air provide the favorable conditions for generation of tornadoes.关键词
龙卷风/富士达-皮尔森强度分类法/强度等级Key words
Tornado/Fujitec-Pearson method/Intensity grade分类
天文与地球科学引用本文复制引用
朱红蕊,张洪玲,孙爽,王春丽,姚俊英..1956-2011年黑龙江省龙卷风气候特征[J].气象与环境学报,2015,(3):98-103,6.基金项目
公益性行业(气象)科研专项(GYHY201106013)、公益性行业(气象)科研专项(GYHY201206012)和中国清洁发展机制基金赠款项目“面向适应的气候灾害风险评估与管理机制研究”(1213112)共同资助。 ()