中文摘要：

基于欧洲中尺度天气预报中心的再分析数据，对青藏高原的地表温度近36年（1979—2014）来的时空变化特征进行了分析，结果显示，青藏高原地表温度整体上呈现出东高西低的分布，柴达木盆地的温度明显高于周边地区。高原地表温度的整体变化有一个约3a的震荡周期，与大气可降水量的变化规律一致。高原大部分地区的升温率都在0．01℃／a以上，昆仑山、喜马拉雅山、柴达木盆地和巴彦克拉山的大部分地区升温率在0．03℃／a以上，为同期世界平均水平的3倍以上。4个季节的升温趋势并不一致，从大到小依次为春季、冬季、夏季、秋季，最高升温率为0．1℃／a，出现在春季，最低为-0．06℃／a，出现在夏季。帕米尔高原局部地区在春、夏、冬3季均出现了降温现象。

英文摘要：

By using reanalysis data of ECMWF （European Centrer for Medium Range Weather Forecasts）, this paper analyzed the spatial variation and temporal laws of surface temperature in Tibetan Plateau from 1979- 2014. Results show that the surface temperature over Tibetan Plateau is in- creasing in the recent 36 years（1979--2014）, and a 3 a oscil-lation period was found by the spectral analysis. In addition, the result of regressive analysis shows that surface temperature of most parts of the Tibetan Plateau was increasing sig- nificantly by a rate higher than 0.01℃/a, especially in the Kunlun mountain, Himalayas and Qaidam Basin whose in- creasing rate is higher than 0. 03℃/a. The trends of in- creasing rate in four seasons were inconsistent. From big to small, they were Spring, Winter, Summer, and Autumn. In Spring, the highest increasing rate is 0.1℃/a. In Summer, the lowest is -0.06℃/a.