摘要
利用南宁市城区1951～2005年的气象资料,分析了近50年来气温、降水、日照时数、风速等气象要素的变化特征,结果显示,南宁市年平均气温呈明显的上升趋势,1986年以来升温最明显,随着气候变暖,寒冻害明显减少,高温天气有增多的趋势.年降水量的长期变化趋势不明显,但年际变化较大;年降水日数有减少的趋势,≥25 mm和≥50 mm的强降水日数呈微弱的增加趋势.年日照时数、年平均风速、大风日数呈明显减少的趋势.
In this paper, some characteristics of climate change in Nanning are analyzed base on the meteorological data recorded during 1951～2005. The results show that： the yearly temperature in Nanning is increasing remarkably, especially since 1986. Along with climate warming, high temperature weather have an increasing trend, freeze is decreasing remarkably. The yearly precipitation have a slight trend of long-term change, but the interannual variation of precipitation is singnificant. The number of precipitation days show a decreasing trend, but the strong rainfall （above 50 mm） show a slight increasing trend. The trend of annual sunshine duration and wind speed are descent, strong wind is decreasing remarkably.
出处
《广西大学学报（自然科学版）》
CAS
CSCD
2007年第2期159-162,共4页
Journal of Guangxi University（Natural Science Edition）
基金
国家自然科学基金资助项目(40675023)
关键词
南宁市
气候变化
气温
降水量
日照对数
风速
Nanning city
climate change
temperature
precipitation
sunshine duration
wind speed
