https://ogcapi.bgs.ac.uk/collections/offshore-survey-overview/items/225
type: Place
id: 225.0
prev: 224.0
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cruise id: 225.0
cruise: 1985/7
restitle: Geophysical Survey 1985/7: NW Continental Margin (29/Jun/1985 to 09/Jul/1985)
ship: MV Gorsethorn
client: British Geological Survey
contractor: British Geological Survey
cruise area: CP2 Regional Sea Boundaries: Atlantic North-West Approaches, Rockall Trough and Faeroe/Shetland Channel, Scottish Continental Shelf, Offshore 1:250k: Anton Dohrn, Darwin, Foula, Geikie, Hebrides Terrace, Judd, Lewis, Peach, Rona, St Kilda, Sula Sgeir, Wyville Thomson, Offshore 1:500k: Central Rockall Basin, Faroe Shetland Basin, North Rockall Basin, SeaVoX Sub-Ocean: NORTHEAST ATLANTIC OCEAN (40W)
abstract: This British Geological Survey (BGS) marine geophysical survey took place in May and June 1985 in the NW continental margin on board the MV Gorsethorn. The purpose was to collect data as part of the UK continental shelf survey programme. The main objective was to survey a series of deep-tow boomer/sparker profiles down the West Hebridean and West Shetland slopes. Sea floor data were collected using echosounder; deep-tow sidescan sonar and transit sonar. Sub-bottom seismic profiling data were collected using pinger; deep-tow boomer and deep-tow sparker. Gravity data were recorded. These records are archived by BGS. Details of the survey data processing are contained in BGS report WB/89/12R.
additional info: Information for this survey is sourced from BGS report WB/89/12R. Vessel type - motor vessel. Navigation - Transit satellite, Magnavox integrated system; in deep-water areas Magnavox MX1107L system. Positions transformed to Internation Spheroid, European Datum 1950. Accuracy details - (Position +/- 200m in water depth &lt400m). Echo-sounder - Atlas Deso 20. Geophysical equipment: deep-tow sidescan sonar; transit sonar; deep-tow boomer, deep-tow sparker and pinger. Gravity meter - LaCoste and Romberg S75. For more detailed information see the Cruise Report.
nav equip type: Transit satellite
geophys equip type: Deep Tow Boomer, Deep Tow Sparker, Echo Sounder, Gravimeter, Magnetometer, Pinger, Sidescan Sonar
start date: 1985-06-29T00:00:00
start date est: Real
end date: 1985-07-09T00:00:00
end date est: Real
confidentiality: unclassified (open file)
accessuse restric: unrestricted use, copyright acknowledgement
terms of use: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced British Geological Survey materials "Contains British Geological Survey materials ©UKRI [year]"
terms of use url: http://nationalarchives.gov.uk/doc/open-government-licence/version/3/
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