Chapter 17

Distributed watershed modeling

Outline:

• Definition and Objectives
• Digital Terrain Models (akak Digital Elevation Models)
  • types of DTMs
  • topographic attributes
  • derived hydrologic indices
  • flow path determination
  • Channel extraction
• GIS-based model parameterization
  • data input layers
  • land surface characterization
  • internal model parameters
• Example applications

Course Reader:

• Refsgaard, J. C. (1997). Parameterisation, calibration and validation of distributed hydrological models. Journal of Hydrology, 198(1-4), 69-97. https://doi.org/10.1016/S0022-1694(96)03329-X
• Watch this movie showing a GIS-GRASS based flow model.

Related web links:

• Distributed model studies (I highly recommend visiting/reading these sites)
  • Distributed model of Elbe drainage basin
  • Distributed model of Grey River and tributaries
• Distributed model software
  • TOPMODEL model homepage
  • DHSVM model
  • TOPOG model homepage

Video Podcast: Distributed watershed modeling

This 46-minute presentation introduces the techniques used to create and evaluate a distributed hydrological model of a watershed.

• 640 x 480 (480p) format that balances speed and quality. (468 MB file)
• 1920 x 1280 (HD) format that provides larges size and best quality. (3.1 GB file)

Chapter 16 :: Chapter 18