DOI: 10.5194/hess-20-3691-2016
Scopus记录号: 2-s2.0-84986301942
论文题名: Reliability of lumped hydrological modeling in a semi-arid mountainous catchment facing water-use changes
作者: Hublart P ; , Ruelland D ; , De Cortázar-Atauri I ; G ; , Gascoin S ; , Lhermitte S ; , Ibacache A
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2016
卷: 20, 期: 9 起始页码: 3691
结束页码: 3717
语种: 英语
Scopus关键词: Catchments
; Hydrology
; Irrigation
; Radiation effects
; Reliability
; Runoff
; Snow melting systems
; Stream flow
; Sublimation
; Water
; Water supply
; Annual water balance
; Hydrological modeling
; Hydrological response
; Irrigation water use
; Model-based analysis
; Runoff generation
; Runoff generation process
; Streamflow prediction
; Climate models
; catchment
; conceptual framework
; hydrological modeling
; hydrological response
; irrigation system
; net radiation
; reliability analysis
; river system
; runoff
; snowmelt
; streamflow
; Andes
英文摘要: This paper explores the reliability of a hydrological modeling framework in a mesoscale (1515ĝ€km2) catchment of the dry Andes (30°ĝ€S) where irrigation water use and snow sublimation represent a significant part of the annual water balance. To this end, a 20-year simulation period encompassing a wide range of climate and water-use conditions was selected to evaluate three types of integrated models referred to as A, B and C. These models share the same runoff generation and routing module but differ in their approach to snowmelt modeling and irrigation water use. Model A relies on a simple degree-day approach to estimate snowmelt rates and assumes that irrigation impacts can be neglected at the catchment scale. Model B ignores irrigation impacts just as Model A but uses an enhanced degree-day approach to account for the effects of net radiation and sublimation on melt rates. Model C relies on the same snowmelt routine as Model B but incorporates irrigation impacts on natural streamflow using a conceptual irrigation module. Overall, the reliability of probabilistic streamflow predictions was greatly improved with Model C, resulting in narrow uncertainty bands and reduced structural errors, notably during dry years. This model-based analysis also stressed the importance of considering sublimation in empirical snowmelt models used in the subtropics, and provided evidence that water abstractions from the unregulated river are impacting on the hydrological response of the system. This work also highlighted areas requiring additional research, including the need for a better conceptualization of runoff generation processes in the dry Andes. © Author(s) 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78740
Appears in Collections: 气候变化事实与影响
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作者单位: UM2, UMR HydroSciences Montpellier, Montpellier, France; CNRS, UMR HydroSciences Montpellier, Montpellier, France; INRA, US 1116 AGROCLIM, Avignon, France; CNRS, CESBIO, UMR 5126, Toulouse, France; Delft University of Technology, Department of Geoscience and Remote Sensing, Delft, Netherlands; INIA, Colina San Joaquín s/n, La-Serena, Chile; CEAZA, Raúl Bitrán s/n, La-Serena, Chile
Recommended Citation:
Hublart P,, Ruelland D,, De Cortázar-Atauri I,et al. Reliability of lumped hydrological modeling in a semi-arid mountainous catchment facing water-use changes[J]. Hydrology and Earth System Sciences,2016-01-01,20(9)