柴达木盆地近50年气温变化时空分布特征分析

文中利用柴达木盆地8个气象站点,1961年-2011年月平均、平均最高、平均最低气温数据进行气温变化的时空分布特征分析。结果表明:50年来,柴达木盆地平均气温、平均最高、最低气温增暖趋势分别为0.54℃/10a、0.43℃/10a和0.74℃/10a,明显高于全国和全球增幅;增暖在平均最低气温上表现最为突出;四季平均气温、平均最高、最低气温均表现为明显上升趋势,其中秋、冬季增温高于春、夏季,冬季增温贡献最大;各站点气温在空间上表现为较一致的增温趋势,气温增幅从东向西逐渐增高。

The analysis on air temperature variation characteristic in Qaidamu basin(1961-2011) under the background of global warming

Under global warming,there was an obvious regional differentiation of climate change all over the world in the near 50 years.In this paper,the 50 years,(1961-2010) air temperature records of 8 weather stations in Qaidam basin were used to analyze the climatic changes.The results show that the warming trend of the average air temperature,average maximum temperature and average minimum temperature were respectively 0.54℃/10a,0.43℃/10a and 0.74℃/10a,much higher than the linear tendency of China and the whole world;the average minimum temperature increased most obviously and the winter temperature was the biggest contributor to the increased annual temperature;spatial analysis results show that the increment rate of temperature increased from the east to the west across the basin.