YANG Qian,CHEN Quanliang,CHEN Chaoping,et al.Spatial-temporal Changes of Temperature over the Central and Eastern Part of Tibetan Plateau from 1960 to 2016[J].Journal of Chengdu University of Information Technology,2020,35(03):352-358.[doi:10.16836/j.cnki.jcuit.2020.03.017]
全球变暖背景下青藏高原中东部地区温度变化特征
- Title:
- Spatial-temporal Changes of Temperature over the Central and Eastern Part of Tibetan Plateau from 1960 to 2016
- 文章编号:
- 2096-1618(2020)03-0352-07
- Keywords:
- atmospheric science; climate system and climate change; Tibetan Plateau; climate change; temperature; spatial and temporal variation
- 分类号:
- P467
- 文献标志码:
- A
- 摘要:
- 青藏高原作为全球气候变化的指示器,其温度变化对全球气候变化有重要的意义。为研究青藏高原近年来的温度变化特征,利用青藏高原中东部地区1960-2016年64个站点的逐日平均、最高和最低温度资料,采用最小二乘法、一元线性回归等方法分析青藏高原中东部地区温度的时空分布及年际变化特征。结果表明:青藏高原中东部温度的增暖速度表现为东南部、北部、西部增暖速度快,中部地区增暖慢; 从季节来看,2000年以前秋季对高原中东部增暖的贡献最大,2000年后春季对高原中东部增暖的贡献最大,且最低温度的增温最显著,其次是平均温度、最高温度; 2000年以后青藏高原中东部温度持续升高,且增暖速度更快。
- Abstract:
- As the indicator of global climate change, the temperature change of Tibetan Plateau is of great significance to worldwide climate change. To research the recent characteristics of temperature change in Tibetan Plateau, we use the daily average, maximum and minimum temperature data of 64 stations data from 1960 to 2018 over the central and eastern region of Tibetan Plateau, and the least square method and Linear regression method to analyze the spatial and temporal variation characteristics and the interannual change features of temperature. The result shows that: the temperature’s change over the central and eastern region of the Tibetan Plateau has shown rapid temperature increase happened in southeast, north and west, and slow temperature increase happened in the central area. In terms of seasons, autumn contributes most to the warming before 2000, and spring contributes most to the warming after 2000. The minimum temperature has the most significant increase, followed by the average temperature and the maximum temperature. The temperature has been rising continuously since 2000 in the middle and western part of Tibetan Plateau, and the warming speed is faster than before.
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备注/Memo
收稿日期:2019-10-18 基金项目:国家自然科学基金资助项目(41475037)