摘要
通过对玉林、贵港两市 2 0 0 0年夏季到秋季严重干旱的成因及其特征进行分析 ,得出 2 0 0 0年夏秋由于欧亚中高纬度以纬向环流为主 ,不利于冷空气南侵广西 ,造成锋面降水减少 ;副高持续偏弱 ,主体位置偏东偏北 ,导致台风 (热带气旋 )路径偏东 ,对桂东南未造成直接影响 ,使桂东南的雨量减少。
The analysis of the causes and characteristics of the serious drought occurred between summer and autumn of 2000 in Yulin and Guigang shows that the prevailing zonal circulation in the middle and high Europe Asia latitude between surmmer and autumn obstruct the southwards flow of cold air to Guangxi, resulting in the reducing of precipitation on frontal surface In the mean time, the sub high pressure persists in a weak status and it locates a little bit eastwards and northwards, resulting in the eastwards deflecting of typhoon route, which means that it didn't directly influence the east south part of Guangxi, and reduced the precipitaion in this part of Guangxi
出处
《广西气象》
2001年第2期40-43,共4页
Journal of Guangxi Meteorology
关键词
夏秋
干旱
成因
summer autumn
drought
causes
