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

被引:15
作者
Barkwith, Andrew [1 ]
Hurst, Martin D. [1 ]
Jackson, Christopher R. [1 ]
Wang, Lei [1 ]
Ellis, Michael A. [1 ]
Coulthard, Tom J. [2 ]
机构
[1] British Geol Survey, Ctr Environm Sci, Nottingham NG12 5GG, England
[2] Univ Hull, Dept Geog Environm & Earth Sci, Kingston Upon Hull HU6 7RX, N Humberside, England
关键词
Cellular automata; Sediment transport; Groundwater; Landscape evolution; CAESAR-Lisflood; CLiDE; CELLULAR-AUTOMATA; FLUID-DYNAMICS; SEDIMENT; EROSION; TRANSPORT; VALLEY; SCALE; APPROXIMATION; PRECIPITATION; VEGETATION;
D O I
10.1016/j.envsoft.2015.09.001
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
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. (C) 2015 NERC as represented by BGS. Published by Elsevier Ltd. This is an open access article under the CC BY license.
引用
收藏
页码:1 / 20
页数:20
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