PROCEEDINGS OF HYDRAULIC ENGINEERING
Online ISSN : 1884-9172
Print ISSN : 0916-7374
ISSN-L : 0916-7374
A strategy to build a macro hydrological model to be coupled to an atmospheric model
Michiharu SHIIBAYasuto TACHIKAWAYutaka ICHIKAWA
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JOURNAL FREE ACCESS

1997 Volume 41 Pages 1109-1112

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Abstract

To successfully model global energy and water cycles, the linkage of the hydrologic model and atmospheric model is required. We present a strategy to build a macro hydrological model to be combined to an atmospheric model.
First we present a way to combine the field models of the atmospheric and hydrologic systems, in which the natural catchment shapes can be used as macro hydrological grids. This makes us to utilize the experience in hydrological modeling of watersheds.
Second we present a strategy to build simplifieddistributed hydrological models of the processes within each macro hydrological grid. We take into account topography and stream network structure to derive simplified models, using the cluster analysis and stream order analysis. This type of simplification will be useful when considering the heterogeneity of hydrological state variables within a grid.

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© by Japan Society of Civil Engineers
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