Presenter/Author Information

Paola Allamano
David Hutchinson
Paul H. Whitfield

Keywords

ungauged basins, pluvial watershed, landscape attributes

Start Date

1-7-2006 12:00 AM

Description

The IHACRES model has been widely shown to be successful in modelling rainfall-runoff processes in a variety of environments including mountainous regions. Our objective was to determine if landscape features could be used to determine model parameters that could successfully be transferred to ungauged basins and the uncertainty of such estimates be simultaneously assessed. Here we report preliminary results where calibrated model parameters from a variety of mountain watersheds are compared to basin area, drainage density and other attributes derived from digital elevations models. These results indicate that some model parameters exhibit a relation to basin characteristics. However, noise in these relations limits the usefulness of the model for estimating hydrologic response at ungauged mountain basins.

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Jul 1st, 12:00 AM

Preliminary Indications of the Transferability of IHACRES Model Parameters in Mountainous Rainfall Driven Rivers

The IHACRES model has been widely shown to be successful in modelling rainfall-runoff processes in a variety of environments including mountainous regions. Our objective was to determine if landscape features could be used to determine model parameters that could successfully be transferred to ungauged basins and the uncertainty of such estimates be simultaneously assessed. Here we report preliminary results where calibrated model parameters from a variety of mountain watersheds are compared to basin area, drainage density and other attributes derived from digital elevations models. These results indicate that some model parameters exhibit a relation to basin characteristics. However, noise in these relations limits the usefulness of the model for estimating hydrologic response at ungauged mountain basins.