Temperature variation and abrupt change analysis in the Three-River Headwaters Region during 1961-2010
文献类型：期刊论文
| 作者 | Yi Xiangsheng(易湘生) ; Li, GS ; Yin, YY |
| 刊名 | JOURNAL OF GEOGRAPHICAL SCIENCES
 |
| 出版日期 | 2012 |
| 卷号 | 22期号:3页码:451-469 |
| 关键词 | temperature variation inter-annual change inter-decadal change standard value change abrupt change analysis Three-River Headwaters Region |
| 通讯作者 | Li, GS |
| 英文摘要 | In this study, a monthly dataset of temperature time series (1961-2010) from 12 meteorological stations across the Three-River Headwater Region of Qinghai Province (THRHR) was used to analyze the climate change. The temperature variation and abrupt change analysis were examined by using moving average, linear regression, Spline interpolation, Mann-Kendall test and so on. Some important conclusions were obtained from this research, which mainly contained four aspects as follows. (1) There were several cold and warm fluctuations for the annual and seasonal average temperature in the THRHR and its three sub-headwater regions, but the temperature in these regions all had an obviously rising trend at the statistical significance level, especially after 2001. The spring, summer, autumn and annual average temperature increased evidently after the 1990s, and the winter average temperature exhibited an obvious upward trend after entering the 21st century. Except the standard value of spring temperature, the annual and seasonal temperature standard value in the THRHR and its three sub-headwater regions increased gradually, and the upward trend for the standard value of winter average temperature indicated significantly. (2) The tendency rate of annual average temperature in the THRHR was 0.36 degrees C10a(-1), while the tendency rates in the Yellow River Headwater Region (YERHR), Lancangjiang River Headwater Region (LARHR) and Yangtze River Headwater Region (YARHR) were 0.37 degrees C10a(-1), 0.37 degrees C10a(-1) and 0.34 degrees C10a(-1) respectively. The temperature increased significantly in the south of Yushu County and the north of Nangqian County. The rising trends of temperature in winter and autumn were higher than the upward trends in spring and summer. (3) The abrupt changes of annual, summer, autumn and winter average temperature were found in the THRHR, LARHR and YARHR, and were detected for the summer and autumn average temperature in the YERHR. The abrupt changes of annual and summer average temperatures were mainly in the late 1990s, while the abrupt changes of autumn and winter average temperatures appeared primarily in the early 1990s and the early 21st century respectively. (4) With the global warming, the diversities of altitude and underlying surface in different parts of the Tibetan Plateau were possibly the main reasons for the high increasing rate of temperature in the THRHR. |
| 收录类别 | SCI |
| 资助信息 | National Science and Technology Support Plan 2009BAC61B01 |
| 语种 | 英语 |
| 公开日期 | 2012-05-15 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/11798]  |
| 专题 | 地理科学与资源研究所_研究生部 |
| 推荐引用方式 GB/T 7714 | Yi Xiangsheng,Li, GS,Yin, YY. Temperature variation and abrupt change analysis in the Three-River Headwaters Region during 1961-2010[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2012,22(3):451-469. |
| APA | Yi Xiangsheng,Li, GS,&Yin, YY.(2012).Temperature variation and abrupt change analysis in the Three-River Headwaters Region during 1961-2010.JOURNAL OF GEOGRAPHICAL SCIENCES,22(3),451-469. |
| MLA | Yi Xiangsheng,et al."Temperature variation and abrupt change analysis in the Three-River Headwaters Region during 1961-2010".JOURNAL OF GEOGRAPHICAL SCIENCES 22.3(2012):451-469. |
入库方式： OAI收割
来源：地理科学与资源研究所
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