Analysis on the Temporal and Spatial Characteristics and Causes of Cold Wave in Qinhuangdao
Analysis on the Temporal and Spatial Characteristics and Causes of Cold Wave in Qinhuangdao出 版 物：《Meteorological and Environmental Research》 (气象与环境研究（英文版）)
年 卷 期：2011年第2卷第5期
页 面：12-15页
学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学]
主 题：Cold wave Spatial-temporal characteristics Genetic analysis Qinhuangdao China
摘 要：[Objective] The aim was to study the temporal and spatial characteristics and causes of cold wave in Qinhuangdao.[Method] Based on temperature data from five surface meteorological stations in Qinhuangdao from 1970 to 2009 and the latest standards issuing cold wave early warning signal,statistical analysis on the temporal and spatial distribution of cold wave was carried out,and the causes were discussed preliminarily.[Result] From 1970 to 2009,the frequencies of blue and yellow cold wave in Qinhuangdao region were 2 334 and 105 times respectively,and cold wave occurred most frequently in Qinglong County and least frequently in Lulong County,which was related to the effects of underlying surface,latitude and *** wave might happen from September to next May,and the earliest occurrence date was September 9,while the latest end date was May *** addition,the frequency of cold wave was the highest in January and lowest in *** 1970 to 2009,blue cold wave occurred most frequently in 1972 and 1979 and least frequently in 1984,while the frequency of yellow cold wave was the highest in 1979 and lowest in 9 *** decadal variation,cold wave appeared most frequently in the 1970s and least frequently in the *** the increase of temperature,the frequency of cold wave showed decrease trend,and the beginning date tended to postpone,while its end date advanced,and it showed that the changes of cold wave was mainly caused by climate warming.[Conclusion] The study could provide theoretical guidance for the meteorological disaster prevention and reduction and local agricultural service.
维普期刊数据库