Simulating the influences of groundwater on regional geomorphology using a distributed, dynamic, landscape evolution modelling platform

Barkwith, Andrew; Hurst, Martin D.; Jackson, Christopher R.; Wang, Lei; Ellis, Michael A.; Coulthard, Tom J.

Abstract

A dynamic landscape evolution modelling platform (CLiDE) is presented that allows a variety of Earth system interactions to be explored under differing environmental forcing factors. Representation of distributed surface and subsurface hydrology within CLiDE is suited to simulation at sub-annual to centennial time-scales. In this study the hydrological components of CLiDE are evaluated against analytical solutions and recorded datasets. The impact of differing groundwater regimes on sediment discharge is examined for a simple, idealised catchment, Sediment discharge is found to be a function of the evolving catchment morphology. Application of CLiDE to the upper Eden Valley catchment, UK, suggests the addition of baseflow-return from groundwater into the fluvial system modifies the total catchment sediment discharge and the spatio-temporal distribution of sediment fluxes during storm events. The occurrence of a storm following a period of appreciable antecedent rainfall is found to increase simulated sediment fluxes.

Citation

Barkwith, A., Hurst, M. D., Jackson, C. R., Wang, L., Ellis, M. A., & Coulthard, T. J. (2015). Simulating the influences of groundwater on regional geomorphology using a distributed, dynamic, landscape evolution modelling platform. Environmental modelling & software : with environment data news, 74, 1-20. https://doi.org/10.1016/j.envsoft.2015.09.001

• Journal Article Type: Article
• Acceptance Date: Sep 1, 2015
• Publication Date: 2015-12
• Deposit Date: Oct 5, 2015
• Publicly Available Date: Nov 23, 2017
• Journal: Environmental modelling & software
• Print ISSN: 1364-8152
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 74
• Pages: 1-20
• DOI: https://doi.org/10.1016/j.envsoft.2015.09.001
• Keywords: Cellular automata, Sediment transport, Groundwater, Landscape evolution, CAESAR-Lisflood, CLiDE
• Public URL: https://hull-repository.worktribe.com/output/379492
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S1364815215300463
• Additional Information: This article is maintained by: Elsevier; Article Title: Simulating the influences of groundwater on regional geomorphology using a distributed, dynamic, landscape evolution modelling platform; Journal Title: Environmental Modelling & Software; CrossRef DOI link to publisher maintained version: http://dx.doi.org/10.1016/j.envsoft.2015.09.001; Content Type: article; Copyright: Copyright © 2015 NERC as represented by BGS. Published by Elsevier Ltd.
• Contract Date: Nov 23, 2017