摘要
利用micaps提供的气象资料结合本地气象要素,对2009年秋至2010年夏季凤山县特大干旱的成因进行分析,表明凤山县特大干旱的主要原因是:(1)孟加拉湾出现弱高压脊,下沉增温气流阻挡了海面水汽向北输送,导致严重缺乏水汽汇和动力抬升条件;(2)长时间降水偏少;(3)长时间气温偏高,近地层空气蒸发量大。
Basing on the meteorological data, the severe drought from the fall of 2009 to the summer of 2010 in Fengshan county was analyzed. The cause of drought are as follow： （1）When a weak high pressure appears over Bay of Bengal, the sinking air flow blocks the water vapor of sea surface transporting northward.（2less rainfall for a long time.（3）high temperature and large air evaporation near surface for a long time.
出处
《气象研究与应用》
2011年第2期29-31,共3页
Journal of Meteorological Research and Application
关键词
凤山县特大干旱
成因
分析
severe drought in Fengshan county, cause, analysis
