Title: Evaluation of a water equivalent of snow cover map in a small catchment area using a geostatistical approach
Authors : Hosang, Jürg
Dettwiler, Katrin
Published in : Hydrological Processes
Volume(Issue) : 5
Issue : 3
Pages : 283
Pages to: 290
Publisher / Ed. Institution : Wiley
Issue Date: 1991
License (according to publishing contract) : Licence according to publishing contract
Type of review: Not specified
Language : English
Subjects : Snow; Geostatistics
Subject (DDC) : 500: Natural sciences and mathematics
Abstract: We describe an objective method for evaluating the spatial distribution of water equivalents of the snow cover within a small catchment. Regression analysis is used to quantify the relationship between elevation, presence or absence of forest, and potential direct solar radiation as independent variables and water equivalent as measured at a number of sites. First, this regression relationship is used to interpolate water equivalent data all over the basin area. Then we interpolate the residuals of the regression using a geostatistical approach. Superimposing the results obtained by interpolating the regression relationship and the interpolated residuals eventually yields the water equivalent distribution over the test area. The advantages of the interpolation method used lie in the optimal (effective, unbiased) estimation of the interpolated values as well as in the possibility to quantify the associated estimation variances.
Departement: School of Engineering
Organisational Unit: Institute of Data Analysis and Process Design (IDP)
Publication type: Article in scientific Journal
DOI : 10.1002/hyp.3360050308
URI: https://digitalcollection.zhaw.ch/handle/11475/6103
Appears in Collections:Publikationen School of Engineering

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