摘要
利用广西66个气象台站1960～2008年逐日最高气温资料,分析了广西年高温日数、春夏秋三季高温日数的时空特征和年际、年代际变化特征。结果表明:年高温日数的地域分布由河谷向丘陵山区递减,具有明显的局地性特征;广西西部春季高温发生频繁,年极端最高温度出现在春季。序列分析表明,广西年高温日数呈显著的阶段性特征和突变特征,1960～2008年经历了3个偏多时期和2个偏少时期,并出现2次突变。
Based on the daily maximum temperature data of Guangxi 66 meteorological stations from 1960- 2008, the regional distribution characteristic and change trends of annual mean and seasonal mean of high- temperature days were analyzed. The results show that the yearly high-temperature days decrease from valleys to hills and mountainous, with obvious regional feature. In the western part of Guangxi, spring high- temperature occurs frequently and annual extreme high temperature occurs in spring. It is also revealed that the annual mean high-temperature days have prominent stage characteristic and notable abrupt change. From 1960 to 2008, there are 3 （2）periods that high-temperature days are more （less）than normal,and 2 abrupt change.
出处
《气象研究与应用》
2010年第1期46-49,56,共5页
Journal of Meteorological Research and Application
基金
中国气象局华南区域气象中心气象科技攻关重点项目(GRMC2007Z02-1)资助
关键词
高温日数
下沉增温
阶段性特征
突变分析
High temperature days
Warming by descending draft
Stage characteristic
Abrupt change
