DOI: 10.5194/hess-18-787-2014
Scopus记录号: 2-s2.0-84896851122
论文题名: Modeling the effect of glacier recession on streamflow response using a coupled glacio-hydrological model
作者: Naz B ; S ; , Frans C ; D ; , Clarke G ; K ; C ; , Burns P ; , Lettenmaier D ; P
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2014
卷: 18, 期: 2 起始页码: 787
结束页码: 802
语种: 英语
Scopus关键词: Distributed hydrologic model
; Future predictions
; Glacier mass balance
; Glacier recession
; Hydroclimatic variables
; Snow water equivalent
; Streamflow response
; Streamflow variations
; Computer simulation
; Economic and social effects
; Rivers
; Snow
; Watersheds
; Stream flow
; glacial hydrology
; glacier dynamics
; glacier retreat
; headwater
; spatial distribution
; streamflow
; Alberta
; Bow Basin
; Canada
英文摘要: We describe an integrated spatially distributed hydrologic and glacier dynamic model, and use it to investigate the effect of glacier recession on streamflow variations for the upper Bow River basin, a tributary of the South Saskatchewan River, Alberta, Canada. Several recent studies have suggested that observed decreases in summer flows in the South Saskatchewan River are partly due to the retreat of glaciers in the river's headwaters. Modeling the effect of glacier changes on streamflow response in river basins such as the South Saskatchewan is complicated due to the inability of most existing physically based distributed hydrologic models to represent glacier dynamics. We compare predicted variations in glacier extent, snow water equivalent (SWE), and streamflow discharge with satellite estimates of glacier area and terminus position, observed glacier mass balance, observed streamflow and snow water-equivalent measurements, respectively over the period of 1980-2007. Observations of multiple hydroclimatic variables compare well with those simulated with the coupled hydrology-glacier model. Our results suggest that, on average, the glacier melt contribution to the Bow River flow upstream of Lake Louise is approximately 22% in summer. For warm and dry years, however, the glacier melt contribution can be as large as 47% in August, whereas for cold years, it can be as small as 15% and the timing of the glacier melt signature can be delayed by a month. The development of this modeling approach sets the stage for future predictions of the influence of warming climate on streamflow in partially glacierized watersheds. © Author(s) 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78310
Appears in Collections: 气候变化事实与影响
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作者单位: Civil and Environmental Engineering, University of Washington, Seattle, WA, United States; Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC, Canada; College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, United States; Oak Ridge National Laboratory, Oak Ridge, TN, United States; Quantum Spatial, Portland, OR, United States
Recommended Citation:
Naz B,S,, Frans C,et al. Modeling the effect of glacier recession on streamflow response using a coupled glacio-hydrological model[J]. Hydrology and Earth System Sciences,2014-01-01,18(2)