Journal article

The importance of landscape position in scaling SVAT models to catchment scale hydroecological prediction

TJ Hatton, WR Dawes, RA Vertessy

Space and time scale variability and interdependencies in hydrological processes | Published : 1995


Process-based models of soil-vegetation-atmosphere interactions developed for small plots (points) define vertical transfers of water and energy. One can attempt to scale to larger heterogeneous land units by disaggregating the landscape into a set of elements and applying a vertical SVAT model independently to each element (Running et al., 1989; Pierce et al., 1992). Such applications fail to consider lateral transfers. A distributed parameter, three-dimensional SVAT (Topog-IRM) developed by the CSIRO Division of Water Resources (O'Loughlin, 1990; Hatton and Dawes, 1991; Hatton et al., 1992) is used to examine the importance of lateral transfers of water for prediction of water balance comp..

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