globalchange  > 气候减缓与适应
DOI: 10.1029/2017JD028055
Scopus记录号: 2-s2.0-85052835973
论文题名:
Generation of High Mountain Precipitation and Temperature Data for a Quantitative Assessment of Flow Regime in the Upper Yarkant Basin in the Karakoram
作者: Kan B.; Su F.; Xu B.; Xie Y.; Li J.; Zhang H.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:16
起始页码: 8462
结束页码: 8486
语种: 英语
英文关键词: hydrological model ; precipitation ; runoff ; temperature ; Upper Yarkant basin
英文摘要: Improved daily precipitation and temperature data at 5 × 5-km grids for 1960–2015 were developed for the Upper Yarkant basin (UYB) based on observations of precipitation gradients and temperature lapse rates. The developed climate data are then used to drive the VIC-Glacier hydrological model to simulate the runoff process for the UYB. A large altitudinal dependence is observed in both precipitation and temperature, with three altitudinal patterns of precipitation gradient for the elevation bands of <2,000 m, 2,000–3,000 m, and >3,000 m, respectively, and a strong seasonal variation in temperature lapse rate ranging from 0.4 to 0.8 °C/100 m. Basin precipitation and temperature data are greatly improved in both amount and spatial variations after the orographic adjustments. Glacier melt runoff is the dominant water source of the UYB accounting for about 52% of annual total flows, followed by snowmelt (about 26%), and rainfall runoff (about 22%). About 60% of basin runoff originates from the high altitudes (>5,000 m), and about 32% and 8% of runoff originate from middle (4,000–5,000 m) and low (<4,000 m) altitudes, respectively. The variations in annual runoff in the UYB were mainly controlled by glacier melt runoff, middle and high altitudes, and temperature in warm seasons during 1965–2015. However, rainfall and snowmelt runoff, and low altitudes, were playing an increasingly important role in total flow variations of the UYB due to the increase of warm season temperatures in 1994–2015 and precipitation in the entire simulation period. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113230
Appears in Collections:气候减缓与适应

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作者单位: Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; Univesity of Chinese Academy of Sciences, Beijing, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China

Recommended Citation:
Kan B.,Su F.,Xu B.,et al. Generation of High Mountain Precipitation and Temperature Data for a Quantitative Assessment of Flow Regime in the Upper Yarkant Basin in the Karakoram[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(16)
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