摘要
利用黑龙江省1961-2013年80个气象台站日气温资料,采用线性倾向率法、Mann-Kendall法、滑动T检验和小波分析等方法,对黑龙江省气温的时空变化特征进行研究。结果表明:(1)近52年来,黑龙江省年平均气温2.57℃,增温幅度为0.35℃/(10 a);(2)各个季节的平均气温、最高气温和最低气温均呈波动上升趋势,其中升温最明显的是最低气温,而冬季的最低气温又是四季中升温幅度最大的,气候倾向率达到0.59℃/(10 a);(3)从空间尺度上,大小兴安岭的增温幅度较大;(4)平均气温和最高气温的突变年份相同,为1988年,最低气温的突变先于平均气温和最高气温7 a;(5)年平均气温存在8 a尺度的变化周期。研究结果将有助于较全面地掌握黑龙江省区域气温变化规律,提高该省应对气候变化的适应能力。
Based on the daily air temperature data from eighty meteorological stations in Heilongjiang Province from 1961 to2013, the spatiotemporal variation characteristics are analyzed with the methods of the linear regression method, Mann-Kendall test method, moving T-test technique and wavelets analysis method. The results show that annual mean temperature is 2.57 ℃ with increasing rate of 0.35 ℃ /（10 a） in recent 52 years. Seasonal mean temperature, maximum temperature and minimum temperature all exhibit increasing tendency, but the warming trend and change of minimum temperature is very obvious. The increase of minimum temperature in winter is more than in other seasons and its increasing rate is 0.59 ℃/（10 a）.From the space change, the most obvious warming scope distributes in the Da and Xiao Xing＇anling Mountains. Both annual mean temperature and maximum temperature have an abrupt change in 1988 and minimum temperature has an abrupt change in 1981. Annual mean temperature has an 8 a change cycle. The results would contribute to understand the temperature variation and to improve the ability to adapt the climate change for local government.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2016年第5期169-175,181,共8页
Environmental Science & Technology
基金
2015年中国气象局气候变化专项(CCSF201512)
2013年公益性行业(气象)科研专项经费项目(GYHY201306036)
2015年黑龙江省气象局科研课题(HQ2013023)
关键词
气候变化
气温
黑龙江省
突变检测
climate change
temperature
Heilongjiang Province
abrupt change test
