DOI: 10.5194/hess-21-4879-2017
Scopus记录号: 2-s2.0-85030537641
论文题名: Providing a non-deterministic representation of spatial variability of precipitation in the Everest region
作者: Eeckman J ; , Chevallier P ; , Boone A ; , Neppel L ; , De Rouw A ; , Delclaux F ; , Koirala D
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2017
卷: 21, 期: 9 起始页码: 4879
结束页码: 4893
语种: 英语
Scopus关键词: Budget control
; Piecewise linear techniques
; Runoff
; Soils
; Uncertainty analysis
; Annual evapotranspirations
; In-situ measurement
; Interactions soil biosphere atmospheres
; Model parametrization
; Piece-wise linear functions
; Spatial and temporal variability
; Total precipitation
; Vegetation properties
; Catchments
; catchment
; evapotranspiration
; mountain region
; orographic effect
; parameterization
; precipitation (climatology)
; seasonal variation
; spatiotemporal analysis
; uncertainty analysis
; water budget
; Himalayas
; Khumbu Himal
; Mount Everest
英文摘要: This paper provides a new representation of the effect of altitude on precipitation that represents spatial and temporal variability in precipitation in the Everest region. Exclusive observation data are used to infer a piecewise linear function for the relation between altitude and precipitation and significant seasonal variations are highlighted. An original ensemble approach is applied to provide non-deterministic water budgets for middle and high-mountain catchments. Physical processes at the soil-atmosphere interface are represented through the Interactions Soil-Biosphere-Atmosphere (ISBA) surface scheme. Uncertainties associated with the model parametrization are limited by the integration of in situ measurements of soils and vegetation properties. Uncertainties associated with the representation of the orographic effect are shown to account for up to 16% of annual total precipitation. Annual evapotranspiration is shown to represent 26%±1% of annual total precipitation for the mid-altitude catchment and 34%±3% for the high-altitude catchment. Snowfall contribution is shown to be neglectable for the mid-altitude catchment, and it represents up to 44%±8% of total precipitation for the high-altitude catchment. These simulations on the local scale enhance current knowledge of the spatial variability in hydroclimatic processes in high-and mid-altitude mountain environments. © 2017 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79042
Appears in Collections: 气候变化事实与影响
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作者单位: Laboratoire HydroSciences (CNRS, IRD, Université de Montpellier) CC 57, Université de Montpellier, 163, rue Auguste Broussonnet, Montpellier, France; CNRM UMR 3589, Météo France/CNRS, Toulouse, France; Institut de Recherche pour le Développement, Université Pierre et Marie Curie, 4 place Jussieu, Paris Cedex 5, France; Nepal Academy of Science and Technology, G.P.O. Box 3323, Khumaltar, Lalitpur, Nepal
Recommended Citation:
Eeckman J,, Chevallier P,, Boone A,et al. Providing a non-deterministic representation of spatial variability of precipitation in the Everest region[J]. Hydrology and Earth System Sciences,2017-01-01,21(9)