摘要
运用和田地区气象、社会统计、NCEP/NCAR、国家气候中心气候诊断等资料,综合应用统计、气候趋势、小波、突变方法分析了和田地区沙尘暴的气候特征,揭示了沙尘暴多发的地形(貌)、大尺度环流背景、气候要素及人类社会活动等综合因素。结果发现:(1)和田地区沙尘暴日数呈现出下降、减少的趋势,显著突变减少点在1988年,年代际尺度上准25年的周期逐渐缩短为准22年;(2)影响沙尘暴多寡的主因是特殊的地形、地貌,冷空气活动强弱的大尺度环流背景,气候要素中大风日数的减少、平均风速的下降,地温、气温的升高,降水量、积雪日数的增加以及以人为主的社会活动,并结合沙尘暴气候特征和影响成因提出了针对性的应对策略,为防御该地沙尘暴自然灾害和生态文明建设提供科学参考。
By using the data of meteorology and social statistics in Hetian and Ncep/Ncar and climatic diagnostics of national climate center,using a statistical,climate linear tendency,wavelet and anomaly analysis methods,we analyzed the climatic characteristics of sand-storm,revealing the sand-stormy comprehensive elements of the terrain,the background of large scale circulation,climate factor,human being and social activity.The result showed：（1）The days of sand-storm in hetian region shown descended and reduced trends,remarkable abrupt and reduced point was in 1988,the standard periodicity of 25 years gradually reduced to 22 years;（2）the main causes that impact on sand-storm were special terrain,the background of large scale circulation that stand for the activity of strong cold air or weak＇s,the climate factors of decreased high wind days and average wind speed,rised soil temperature and temperature,increased precipitation and snowy days,and the principal social activity of human beings.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2011年第6期168-175,共8页
Journal of Arid Land Resources and Environment
基金
新疆维吾尔自治区气象局气象科技研究课题(200820)
YX200916联合资助
关键词
和田地区
沙尘暴
气候特征
成因
应对策略
Hetian region
sand-storm
climatic haracteristics
cause
replying strategy
