Title: Accretion profiling during 1997
Author: Environment Agency
Document Type: Monograph
Abstract:
Accretion profiling was conducted in a number of Eastern Area rivers in low flow periods during 1997 in an attempt to identify the baseflow contribution to rivers during drought years. A series of sites were chosen for repeated measurements during both wet and dry years. Table 1 shows the dates and locations of the accretion profiles. An accretion profile, basically, shows how the river gains (or loses) flow along its length. This is done by measuring the flow at various representative points along the river (usually close to where tributaries join the main channel) and then plotting the results on a graph. It is a particularly useful method for identifying and isolating flow anomalies in a river (e.g. a sudden drop in flow) that tend to occur during times of low flows; once identified, mitigation measures or other solutions can be attempted if required.
Publisher: Environment Agency
Publication Date: 1997
Publication Place: Peterborough
Subject Keywords: Rivers; Flow rate; Hydrometry; Surveying; Discharge (hydrology)
Geographic Keywords: Norfolk; Wensum
Extent: 43
Permalink: http://www.environmentdata.org/archive/ealit:283
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