Review of GIS Applications in Hydrologic Modeling

Abstract

Geographic information systems (GIS) provide a digital representation of watershed characteristics used in hydrologic modeling. This paper summarizes past efforts and current trends in using digital terrain models and GIS to perform hydrologic analyses. Three methods of geographic information storage are discussed: raster or grid, triangulated irregular network, and contour-based line networks. The computational, geographic, and hydrologic aspects of each data-storage method are analyzed. The use of remotely sensed data in GIS and hydrologic modeling is reviewed. Lumped parameter, physics-based, and hybrid approaches to hydrologic modeling are discussed with respect to their geographic data inputs. Finally, several applications areas (e.g., floodplain hydrology, and erosion prediction) for GIS hydrology are described.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 1993
Accession Number
ADA279076

Entities

People

  • Arlen D. Feldman
  • Bruce A. Devantier

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Contracts
  • Drainage Basins
  • Flood Control
  • Geographic Information Systems
  • Geography
  • Groundwater
  • Information Systems
  • Personal Computers
  • Remote Sensing
  • Satellite Imaging
  • Terrain
  • Topography
  • Training
  • Two Dimensional
  • Water Resources

Readers

  • Computational Modeling and Simulation
  • Computer Vision.
  • Riverine Ecology