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Title: Environmental assessment of Denver MRF : impact of freshwater flow on water quality of the Great Ouse estuary : draft working paper 3
Author: National Rivers Authority Anglian Region
Document Type: Monograph
Annotation: EA additional title info: draft working paper 3 - environmental assessment of denver mrf impact of freshwater flow on water quality of the great ouse estuary
The water quality data collected by NRA in the Great Ouse estuary, including its tributaries and effluent sources, have been reviewed to assess the current water quality of the estuary. The data have been used to set up boundary conditions for the Great Ouse estuary water quality model which predicts water quality conditions that are broadly in agreement with the observed conditions. The model is used to predict water quality in the estuary as a result of changes to the Ely Ouse flow at Denver. The results demonstrate that the estuary water quality declines as total freshwater flows reduce, provided tributary and effluent quality remains constant. The results indicate that it does not make much difference whether the fresh water in the estuary comes from the Ely Ouse or the Bedford Ouse. Changing the Ely Ouse discharge from the Tail Sluice to Denver Sluice has a negligible effect on estuary water quality. The model predictions may be used to indicate the order of deterioration in water quality associated with a reduction in freshwater flow. In autumn water quality seems more sensitive to freshwater flow than during the remainder of the year.
Publisher: National Rivers Authority
Publication Date: 1993
Publication Place: Peterborough
Subject Keywords: RiversEstuariesWater qualityDischarge (hydrology)ModelsForecastingEffluents
Geographic Keywords: Cam and Ely Ouse catchmentGreat OuseUpper and Bedford Ouse catchment
Extent: 20
Total file downloads: 297

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