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Data time-step dependency of conceptual rainfall-streamflow model parameters: an empirical study with implications for regionalisation

Littlewood, Ian; Croke, Barry


Employing 1-, 2-, 4-, 6-, 12- and 24-hourly data sets for two catchments (10.6 and 298 km2) in Wales, the calibrated parameters of a unit hydrograph-based model are shown to change substantially over that range of data time steps. For the smaller basin, each model parameter reaches, or approaches, a stable value as the data time step decreases, providing a straightforward method of estimating time-step independent model parameter values. For the larger basin, the model parameters also reach, or...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Hydrological Sciences Journal
DOI: 10.1623/hysj.53.4.685


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