Dataset Information: Vulnerable Concentrations of Seabirds to Oil Spills - MAY (GB)

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Name	Vulnerable Concentrations of Seabirds to Oil Spills - MAY (GB)
Map Topic(s)	Coastal and Marine Resource Atlas
Abbrev Name
Theme	Seabird concentrations are especially vulnerable to oil pollution, and may become contaminated by oil wherever concentrations occur at sea, sometimes at considerable distance from the coast. These data highlight the most vulnerable aggregations for each month of the year in offshore waters based on their abundance in each statistical rectangle and their vulnerability to the effects of oil pollution.
Labelling Convention	Calculated area vulnerability score within each month of the year
Definition	Points representing centre of 1/4 ICES Rectangle (15' lat x 30' long)
Domain of Use	UK Continental Shelf and adjacent seas
Owner	Joint Nature Conservation Committee
Version
Version Date	01/08/1995
Parent	N/A
Child	N/A
Responsible Authority	Joint Nature Conservation Committee
Frequency of Supply	Unknown
Source	Calculated values derived from sea surveys collected for the European Seabirds at Sea Database
Scale	??
Data Capture Process	Seabird observations captured manually or electronically from navigational equipment (e.g. GPS).
Quality	Quality control by 3-stage data checks including visual check of spatial representation of survey data.
Positional Accuracy	Position of points represented with accuracy of +/-10 m; original data capture with positional accuracy of < 2km (pre GPS) then < 100m (post GPS)
Precision	N/A
Measurement	Decimal degrees
Unit of Measure
Dimension
Other Information
Comments	Vulnerability score: No value = no data; 0.00 - 14.00 = low vulnerability; 14.01 - 46.00 = moderate vulnerability; 46.01 - 133.47 = high vulnerability; >= 133.48 = very highly vulnerable.

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