安徽农业科学2011，Vol.39Issue(12)：7525-7526,7530,3.
2008年徐州地区严重秋冬连旱成因分析
Analysis on the Reasons for Consecutive Severe Droughts in Autumn and Winter in Xuzhou in 2008
摘要
Abstract
[Objective] The aim was to study the reasons for consecutive severe droughts in autumn and winter. [Method] By dint of precipitation and NCEP/NCAR reanulysis data in observatory station, the circulation background, vertical movement, abnormal temperature and changes of water vapor conditions in Xuzhou from October 2008 to January 2009 were expounded to reveal the causes for consecutive drought in autumn and winter. [ Result ] Xuzhou was under stable situation for a long time in autumn and winter in 2008, being behind east coastal trough, the downward airatream prevailing; the south trough intensity was weak, and in addition to the east subtropical high and weak intensity, the water vapor transportation condition in Indian Ocean and South Sea was unfavorable. The autumn was warm and the cold air was weak;ever since winter, there were several cold air activities. But the influencing body was in the east, and the south warm and wet airstream was insufficient. Thus, they couldn' t met, which resulted into gale and lower temperature and less precipitation when under the influence of cold air. [ Conclusion ] The study provided theoretical basis for the prevention of drought in the area.关键词
秋冬连旱/成因分析/徐州地区Key words
Consecutive drought in autumn and winter/Caases analysis/Xuzhou area分类
农业科技引用本文复制引用
赵杰,吕翔,彭明艳,张百战,孙建印..2008年徐州地区严重秋冬连旱成因分析[J].安徽农业科学,2011,39(12):7525-7526,7530,3.基金项目
徐州市科技项目(XM09B023). （XM09B023）
