Physically based hydrologic modeling with WaSiM-ETH

Thumbnail

Event details

Date 13.11.2012
Hour 16:1517:15
Speaker Dr Jörg Schulla, Hydrology Software Consulting, Zurich, CH
Location
Category Conferences - Seminars
Although there are still many hydrologic models in use implementing conceptual approaches, present-day hydrologic models try to model the surface and sub-surface hydrologic cycle as physically based as possible in high spatial and temporal resolutions. WaSiM-ETH is one of those physically based, distributed hydrologic models. It is working on a regular grid and solves for each time step for each grid cell all the required equations - e.g. soil water movement, groundwater flow, evaporation and transpiration, runoff generation and concentration etc. Depending on the nature of the problem and its spatial and temporal scale, both spatial and temporal resolutions as well as the choice of applied approaches can be highly customized to result in an optimal model setup. This flexibility allows WaSiM to be applied to small scale problems like the subsurface flow in shallow arctic permafrost soils (using spatial and temporal resolutions of some centimeters and seconds resp.) as well as to medium sized or large river systems for flood forecasting or glacier mass balance modeling - with spatial resolutions of some hundreds of meters and temporal resolutions of hours to days. Successful applications range from arctic to tropic climate, from flat to alpine regions and from very small watersheds (or even point locations) to large basins like the Murrumbidgee River in Australia. The Swiss Office for the Environment (FOEN/BAFU) uses WaSiM for operational flood forecasting for the basins of the rivers Rhone and the Emme.

This presentation gives a summary of the model components of WaSiM. Some particularly interesting modules like the dynamic glacier model or the soil heat transfer model will be discussed in more detail. Also some technical aspects of the application will be covered.

Practical information

  • General public
  • Free
  • This event is internal

Organizer

  • IIE

Contact

  • Dr Hendrik Huwald, EFLUM

Tags

ENACHPEESS

Share