Performance of a distributed semi-conceptual hydrological model under tropical watershed conditions

Auteur(s) et Affiliation(s)

BESKOW, S.

National Soil Erosion Research Lab., Purdue Univ., West Lafayette, Etats-Unis

Center of Technological Development/Water Resources Engineering, Federal Univ., Pelotas, Bresil

MELLO, C.R.

Soil and Water Engineering Group, Engineering Dep., Federal Univ., Lavras, Bresil

NORTON, L.D.

Agronomy and Agricultural and Biological Engineering, USDA-ARS National Soil Erosion Research Lab., Purdue Univ., West Lafayette, Etats-Unis

DA SILVA, A.M.

Soil and Water Engineering Group, Engineering Dep., Federal Univ., Lavras, Bresil

Description :
The aim of this study was to calibrate and to validate the LAvras Simulation of Hydrology (LASH Model) (Beskow, 2009) in a Brazilian Tropical Watershed for daily streamflow. The Shuffled Complex Evolution (SCE-UA) global search method was used with the LASH model in order to optimize model parameters that were found to be the most sensitive or not directly measurable. The LASH model was calibrated over a 2-year period. It was possible to conclude that the model has a great potential for being applied in generating the long-term streamflow as well as flow-duration curves. Therefore, the model can reliably be applied under tropical conditions of this medium-sized watershed or other similar watersheds, thus making it useful to plan the sustainable development of similar tropical and subtropical watersheds.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2011, vol. 86, n°. 3, p. 160-171, nombre de pages : 12, Références bibliographiques : 62 ref.

Date :
2011

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais