Work

Model parameterization scheme for a distributed hydrological model, BTOPMC

Year: 2025

Type: article

Abstract: A distributed hydrological model provides a distributed estimation of water balance components, which is imperative for sustainable water resource management. Due to many calibration parameters and their interactions in a spatially distributed model, it is crucial to specify the parameters and implement robust parameterization schemes properly. The study introduced a regional model parameterization method for a spatially distributed hydrological model. The parameterization method combines regional and local calibration methods to improve parameter identifiability, critical for developing regional relationships between model parameters and catchment attributes. This method is based on developing a functional relationship between model parameters and basin attributes rather than estimating all the parameters through model calibration. The calibrated functional relationship is used as a model parameterization scheme to reduce calibration parameters. The study showed that the new scheme improves model parameter identification.

Source: HydroResearch

DOI: 10.1016/j.hydres.2025.06.001

Author: Satish Bastola

Institution: LSU New Orleans

Language: English

Topic: Hydrology and Watershed Management Studies

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: diamond

Funders: Ministry of Education, Culture, Sports, Science and Technology, University of Yamanashi