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  4. 山地表生过程与生态调控重点实验室
Temperature trends and elevation dependent warming during 1965-2014 in headwaters of Yangtze River, Qinghai Tibetan Plateau

文献类型：期刊论文

作者Ahmed Naveed3,4; Wang Gen-xu3; Oluwafemi Adeyeri5; Munir Sarfraz6; Hu Zhao-yong3,4; Shakoor Aamir1; Imran Muhammad Ali2
刊名JOURNAL OF MOUNTAIN SCIENCE
出版日期2020
卷号17期号:3页码:556-571
关键词Climate change Elevation dependent warming Mann Kendall Temperature trends Yangtze River Qinghai Tibetan Plateau
ISSN号1672-6316
DOI10.1007/s11629-019-5438-3
产权排序1
文献子类Article
英文摘要The understanding of temperature trends in high elevation mountain areas is an integral part of climate change research and it is critical for assessing the impacts of climate change on water resources including glacier melt, degradation of soils, and active layer thickness. In this study, climate changes were analyzed based on trends in air temperature variables (T-max, T-min, T-mean), and Diurnal Temperature Range (DTR) as well as elevation-dependent warming at annual and seasonal scales in the Headwaters of Yangtze River (HWYZ), Qinghai Tibetan Plateau. The Base Period (1965-2014) was split into two subperiods; Period-I (1965-1989) and Period-II (1990- 2014) and the analysis was constrained over two subbasins; Zhimenda and Tuotuohe. Increasing trends were found in absolute changes in temperature variables during Period-II as compared to Period-I. T-max, T-min, and T-mean had significant increasing trends for both sub-basins. The highest significant trends in annual time scale were observed in T-min (1.15 degrees C decade(-1)) in Tuotuohe and 0.98 degrees C decade(-1) in Zhimenda sub-basins. In Period-II, only the winter season had the highest magnitudes of T-max and T-min 0.58 degrees C decade(-1) and 1.26 degrees C decade(-1) in Tuotuohe subbasin, respectively. Elevation dependent warming analysis revealed that T-max, T-min and T-mean trend magnitudes increase with the increase of elevations in the middle reaches (4000 m to 4400 m) of the HWYZ during Period-II annually. The increasing trend magnitude during Period-II, for T-max, is 1.77, 0.92, and 1.31 degrees C decade(-1), for T-min 1.20, 1.32 and 1.59 degrees C decade(-1), for T-mean 1.51, 1.10 and 1.51 degrees C decade(-1) at elevations of 4066 m, 4175 m and 4415 m respectively in the winter season. T-mean increases during the spring season for > 3681 m elevations during Period-II, with no particular relation with elevation dependency for other variables. During the summer season in Period- II, T-max, T-min, T-mean increases with the increase of elevations (3681 m to 4415 m) in the middle reaches of HWYZ. Elevation dependent warming (EDW), the study concluded that magnitudes of T-min are increasing significantly after the 1990s as compared to T-max in the HWYZ. It is concluded that the climate of the HWYZ is getting warmer in both sub-basins and the rate of warming was more evident after the 1990s. The outcomes of the study provide an essential insight into climate change in the region and would be a primary index to select and design research scenarios to explore the impacts of climate change on water resources.
电子版国际标准刊号1993-0321
语种英语
WOS记录号WOS:000519163500005
源URL[http://ir.imde.ac.cn/handle/131551/34635]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者Wang Gen-xu
作者单位1.Bahauddin Zakariya Univ, Dept Agr Engn, Multan 66000, Pakistan;
2.China Univ Geosci, Beijing Key Lab Water Resources & Environm Engn, Beijing 100083, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China;
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
5.Karlsruhe Inst Technol, Inst Meteorol & Climate Res Atmospher Environm Re, Campus Alpine, D-82467 Garmisch Partenkirchen, Germany;
6.Univ Kurdistan Hewler, Water Resources Engn, 30 Meter Ave, Erbil 44001, Kurdistan, Iraq;
推荐引用方式
GB/T 7714		 Ahmed Naveed,Wang Gen-xu,Oluwafemi Adeyeri,et al. Temperature trends and elevation dependent warming during 1965-2014 in headwaters of Yangtze River, Qinghai Tibetan Plateau[J]. JOURNAL OF MOUNTAIN SCIENCE,2020,17(3):556-571.
APA Ahmed Naveed.,Wang Gen-xu.,Oluwafemi Adeyeri.,Munir Sarfraz.,Hu Zhao-yong.,...&Imran Muhammad Ali.(2020).Temperature trends and elevation dependent warming during 1965-2014 in headwaters of Yangtze River, Qinghai Tibetan Plateau.JOURNAL OF MOUNTAIN SCIENCE,17(3),556-571.
MLA Ahmed Naveed,et al."Temperature trends and elevation dependent warming during 1965-2014 in headwaters of Yangtze River, Qinghai Tibetan Plateau".JOURNAL OF MOUNTAIN SCIENCE 17.3(2020):556-571.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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