摘要
利用福建省近40年来的逐月气温数据,通过时间序列分析和非参数Mann-Kendall检验方法,对福建省月平均气温、月极端最高气温、月极端最低气温的时空变化特征进行分析,揭示近40年来极端气温变化的主要特征:(1)福建气温呈明显的升高趋势,月极端最低温度升高速度远大于月极端最高温度;(2)月极端高温空间分布受地形影响深刻,闽西和闽中两大山带之间的山间盆地、河谷区为极端高温高值分布区,山带高海拔区及沿海岛屿为极端最高温度低值区;(3)月极端最低温度由东南向西北递减,东南沿海岛屿为其高值区;(4)月极端最高温趋势大致以闽中大山脉为界,西北显示不明显下降趋势,东南显示显著升高趋势,其中东南沿海福州、漳州、福鼎、长汀为趋势增强中心;(5)月极端最低气温大部分地区显示升高趋势,以河谷、盆地为趋势增强中心,倾斜度值向周围递减。
With emnbination of monthly mean temperature, monthly maximum extreme temperature and monthly minimum extreme temperature of Fujian province over the past 40 years are investigated, using time series analysis as well as non- parametric Mann-Kendall test. The major findings include： （1）the surface temperature have a warming trend and the larger increase trends for the monthly minimum extreme temperature. （2） The elevation of land surfaces make monthly maximum extreme temperature variation in different regions, that the intermontane basins and valleys always higher than the high elevation areas and islands for the maximum extreme temperature. （3） The minimum extreme temperature decreases from southeast to northwest. （4） For the maximum extreme air temperature,the changing extent significantly increasing in southeast but slight decreasing changing trend is distinct in northwest, Fuzhou, Zhangzhou, Fuding, Changting are centrals of increasing trend. （5） An increasing changing trend for the minimum extreme air temperature for the whole study area and centrals of increasing trend turn up in intermontane basins and valleys.
出处
《广东农业科学》
CAS
CSCD
北大核心
2009年第8期358-360,共3页
Guangdong Agricultural Sciences
基金
国家基础科学人才培养基金项目(J0830521)
福建师范大学本科生课外科技计划项目(BKL2008-049)
