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Title: River Darent low flow alleviation. Annex 2 : Darent catchment investigation, model investigation results
Author: National Rivers Authority Southern Region
Document Type: Monograph
The River Darent has been identified by the National Rivers Authority as one of forty over abstracted catchments in England and Wales. The catchment, located in north Kent, is regarded as being of particular importance, owing to the severity of river flow depletion. The river is fed by springs from the Lower Greensand lying along the northern rim of the Weald of Kent, and also from the Chalk of the North Downs. These aquifers are sources of major groundwater abstraction for public water supply. In periods of low rainfall the river has dried up completely in some sections for durations of several months. Groundwater Development Consultants was appointed by the National Rivers Authority in 1991 to undertake a water resources investigation of the Darent catchment. The scope of work for this investigation included development of a computer-based catchment model with simulation of the inter relationship between the aquifers and the river. The model was to be used for a detailed assessment of various engineering options for low flow alleviation. This report describes the development of the Darent catchment model and model calibration work carried out in 1992.
Publisher: National Rivers Authority
Publication Date: 1994
Publication Place: Worthing
Subject Keywords: RiversHydrologyWater levelsFlow rateWater useModelling
Geographic Keywords: Kent (county)DarentDarent catchment
Extent: 94
Total file downloads: 277

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