Lancaster EPrints

Towards a generalisation of the TOPMODEL concepts : topographic indices of hydrological similarity.

Ambroise, Bruno and Beven, Keith J. and Freer, Jim (1996) Towards a generalisation of the TOPMODEL concepts : topographic indices of hydrological similarity. Water Resources Research, 32 (7). pp. 2135-2145. ISSN 0043-1397

Full text not available from this repository.

Abstract

Preliminary studies of the application of TOPMODEL to the 36-ha Ringelbach catchment suggested that the original form of exponential transmissivity function leading to the In (a/tan β) topographic index and first-order hyperbolic base flow recession curve is not appropriate to this catchment. Two alternative forms of topographic index and soil-topographic index are developed based on parabolic and linear transmissivity functions, leading to the more frequently observed second-order hyperbolic and exponential recession curves, respectively. It is shown how these can be used in the same way as the original to relate catchment average water table depths to local water table depths so that patterns of saturation can be evaluated. Two companion [Ambroise et al., this issue; Freer et al., this issue] papers show how the new parabolic index is used in the prediction of Ringelbach discharges, and how the limitations of the model are reflected in the estimated predictive uncertainties using the Generalised Likelihood Uncertainty Estimation (GLUE) approach.

Item Type: Article
Journal or Publication Title: Water Resources Research
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 21986
Deposited By: ep_ss_importer
Deposited On: 16 Feb 2009 16:31
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 15:54
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/21986

Actions (login required)

View Item