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Proceedings Paper

DEM-based spatial discretization and parameter database design for distributed hydrological model
Author(s): Xu Zhang; Tinggang Zhou; Jianrui Zheng
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Paper Abstract

The spatial heterogeneities of hydrological parameters in watersheds with limited extents should be accounted by the distributed hydrological model. Dongting Lake is selected as the study area and divided into 19759 hydrological response units based on DEM according to the concept of drainage density. Each unit has one land-use type and one soil type. The hydrological response units are utilized as the minimum units in simulations of hydrological processes and a parameter database of the distributed hydrological model is designed under the support of GIS. The parameters are managed with layers in the database. The structure of the database is helpful for organizing and updating the parameters.

Paper Details

Date Published: 30 October 2009
PDF: 8 pages
Proc. SPIE 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications, 749831 (30 October 2009); doi: 10.1117/12.832487
Show Author Affiliations
Xu Zhang, Southwest Univ. (China)
Key Lab. of Eco-environments in Three Gorges Reservoir Region (China)
Tinggang Zhou, Southwest Univ. (China)
Key Lab. of Eco-environments in Three Gorges Reservoir Region (China)
Jianrui Zheng, Southwest Univ. (China)
Key Lab. of Eco-environments in Three Gorges Reservoir Region (China)


Published in SPIE Proceedings Vol. 7498:
MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications
Faxiong Zhang; Faxiong Zhang, Editor(s)

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