GIS zur Berechnung des Bodenwasserhaushalts

Translated title of the contribution: GIS for Computing Soil Water Balance

Norbert Bartelme, Andreas Schaumberger

Research output: Contribution to journalArticle

Abstract

Many applications based on agro-meteorological and hydrological models need information about soil water balance to consider the important ecological processes in soil. Most of these models also require a spatial reference, particularly if they are used in an operational way. Thus, analyses and water balance results can be assigned to user-defined study areas. Our work is
based on a well-known standard method introduced and recommended by the Food and Agriculture Organization of the United Nations (FAO). The numerical model parameters of the given site-based formulas are substituted with continuous raster surfaces of
each parameter which are all integrated in a GIS to process result maps of soil water balance. The implemented map algebra algorithms use a Digital Elevation Model (DEM), a soil map and interpolated weather data maps (reference evapotranspiration and
precipitation) as input. The combination of these data results in daily maps of soil water depletion, deep percolation, water stress and actual evapotranspiration. The developed GIS application demonstrates an operational use of the spatio-temporal soil water
balance model in daily time steps for the entire area of Austria, considering its complex terrain
Translated title of the contributionGIS for Computing Soil Water Balance
Original languageGerman
Pages (from-to)26-34
JournalGis.Science
Volume26
Issue number1
Publication statusPublished - 2013

Fields of Expertise

  • Sustainable Systems

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)

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