湖南2008年极端冰冻特大灾害成因分析及影响评估  

Causal Analysis and Evaluation of the Rare Cryogenic Freezing Disaster in Hunan Province in early 2008

作　　者：周慧 周慧 朱国强 禹伟[3] 李超 喻雨知 

机构地区：[1]湖南省防灾减灾重点实验室,湖南长沙410007 [2]湖南省气象台,湖南长沙410007 [3]湖南省气象服务中心,湖南长沙410007 [4]湖南省气候中心,湖南长沙410007

出　　处：《灾害学》2009年第1期80-85,共6页Journal of Catastrophology

基　　金：国家863计划专项(2006AA01A123);湖南省气象局"天气要素精细(乡镇)预报业务系统建设与改进;重点项目低温冰冻灾害天气研究;Grapes模式暴雨研究及其检验评估和湖南省高分辨率数值预报释用技术研究"资助

摘　　要：2008年初,湖南出现了有完整气象记录以来罕见的特大低温冰冻雨雪极端灾害天气。本次过程具有强度大、范围广、时间长、灾害重等特点,过程气温、冰冻、严寒期的多项评估指标创1949以来极值,综合评估为特大型气象灾害。从天气学角度出发,对此次低温冰冻雨雪天气形势进行了分析,同时对低温雨雪冰冻造成的湖南农业、电力、通信、交通等行业影响进行了评估。An extraordinary serious cryogenic freezing rain and snow disaster impacted Hunan province in early 2008, which is rare in the meteorological record of the region. It is of the characteristics of high intensity, broad scope, long time and heavy disaster. The extreme events like the process temperature, freezing, big freeze created an extreme since 1949. Comprehensive assessment shows that it is an extraordinary great meteorological disaster. The condition of this cryogenic, freezing , rain and snow weather is analyzed in the light of synoptic meteorology. Its impacts on agriculture, electric and telecommunications facilities and transportation systems in Hunan province are evaluated.

关 键 词：冰冻 灾害天气 成因分析 影响评估 湖南 

分 类 号：X43[环境科学与工程—灾害防治] P426.63[天文地球—大气科学及气象学]