DOI: 10.5194/hess-19-4673-2015
Scopus记录号: 2-s2.0-84948689744
论文题名: Reconciling high-altitude precipitation in the upper Indus basin with glacier mass balances and runoff
作者: Immerzeel W ; W ; , Wanders N ; , Lutz A ; F ; , Shea J ; M ; , Bierkens M ; F ; P
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 11 起始页码: 4673
结束页码: 4687
语种: 英语
Scopus关键词: Climate change
; Landforms
; Climate change impact
; Direct observations
; Glacier mass balance
; Hydrological cycles
; Irrigation reservoirs
; Planning and design
; Precipitation products
; Spatial variations
; Reservoirs (water)
; altitude
; climate modeling
; glacier mass balance
; hydrological cycle
; mountain environment
; precipitation assessment
; river flow
; runoff
; spatial variation
; water budget
; Indus Basin
英文摘要: Mountain ranges in Asia are important water suppliers, especially if downstream climates are arid, water demands are high and glaciers are abundant. In such basins, the hydrological cycle depends heavily on high-altitude precipitation. Yet direct observations of high-altitude precipitation are lacking and satellite derived products are of insufficient resolution and quality to capture spatial variation and magnitude of mountain precipitation. Here we use glacier mass balances to inversely infer the high-altitude precipitation in the upper Indus basin and show that the amount of precipitation required to sustain the observed mass balances of large glacier systems is far beyond what is observed at valley stations or estimated by gridded precipitation products. An independent validation with observed river flow confirms that the water balance can indeed only be closed when the high-altitude precipitation on average is more than twice as high and in extreme cases up to a factor of 10 higher than previously thought. We conclude that these findings alter the present understanding of high-altitude hydrology and will have an important bearing on climate change impact studies, planning and design of hydropower plants and irrigation reservoirs as well as the regional geopolitical situation in general. © 2015 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78377
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Physical Geography, Utrecht University, Utrecht, Netherlands; Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, United States; FutureWater, Wageningen, Netherlands; International Centre for Integrated Mountain Development, Kathmandu, Nepal
Recommended Citation:
Immerzeel W,W,, Wanders N,et al. Reconciling high-altitude precipitation in the upper Indus basin with glacier mass balances and runoff[J]. Hydrology and Earth System Sciences,2015-01-01,19(11)