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Title: National baseline survey marine manual
Author: National Rivers Authority National Centre for Instrumentation and Marine Surveillance
Document Type: Monograph
The NRA has a duty, under the 1991 Water Resources Act, to monitor controlled waters. Controlled waters include estuarine and coastal waters to the 3 nautical mile limit A Coastal Baseline Survey was started in 1992 as a means of meeting the above objective. The survey has since been developed and refined and is described in further detail throughout this Manual. The National Baseline Survey is carried out by both boat and aircraft. The boats are based in and run by four of the NRA Regions; Anglian ("Sea Vigil"), North West ("Coastal Guardian"), Northumbria an Yorkshire ("Water Guardian") and South Western ("Vigilance"). The aircraft and remote sensing equipment are hired and based at Coventry airport, enabling rapid access to any part of the coastline as required. The surveys are planned and co-ordinated by the National Centre for Instrumentation and Marine Surveillance, Bath, Avon. Four surveys are run each year; in January, May, July and September. The survey dates are intended to reflect seasonal changes in water quality, with the January survey marking the expected low nutrient content of the year. Three of the surveys involve the use of the aircraft. Low light and poor light angles in January rule out the possibility of aerial surveillance for this survey.
Publisher: National Rivers Authority
Publication Date: 1995
Publication Place: Bristol
Subject Keywords: Marine environmentCoastal watersEstuariesWater quality surveysNutrientsAerial surveyingBoats
Geographic Keywords: EnglandWales
Extent: n.p. [57]
Total file downloads: 317

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