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A data-based mechanistic modelling (DBM) approach to understanding dynamic sediment transmission through Wyresdale Park Reservoir, Lancashire, UK.

Price, L. E. and Goodwill, P. and Young, Peter C. and Rowan, J. S. (2000) A data-based mechanistic modelling (DBM) approach to understanding dynamic sediment transmission through Wyresdale Park Reservoir, Lancashire, UK. Hydrological Processes, 14 (1). pp. 63-78. ISSN 0885-6087

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Abstract

This paper outlines the application of a new data-based mechanistic (DBM) modelling methodology to the characterization of the sediment transmission dynamics in a small upland reservoir, Wyresdale Park, Lancashire. The DBM modelling strategy exploits advanced statistical procedures to infer the dynamic model structure and its associated parameters directly from the instrumented data, producing a parametrically efficient, continuous time, transfer function model which relates suspended sediment load at the reservoir inflow to the outflow at the event scale. The associated differential equation model parameters have physical attributes which can be interpreted in terms of sediment transmission processes and associated reservoir trap efficiency. Sedigraph analysis suggests that wind-induced resuspension episodically supplies an additional load to the reservoir outlet. The stochastic nature of the DBM model makes it ideal for evaluating the effects of uncertainty through Monte Carlo simulations (MCS) for discharge and sediment transmission.

Item Type: Article
Journal or Publication Title: Hydrological Processes
Uncontrolled Keywords: data-based mechanistic model ; continuous time ; transfer function model ; time-series analysis ; trap efficiency ; sediment dynamics
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Arts & Social Sciences > Linguistics & English Language
Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 21654
Deposited By: ep_ss_importer
Deposited On: 23 Jan 2009 14:05
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 15:50
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/21654

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