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    This geophysical survey has been carried out by, British Geological Survey (BGS), the survey took place in July 1991 in the North Sea on board the RRS Challenger. The purpose was to collect data to investigate gas-leakage phenomena from pockmarks in the North Sea. Sea floor data were collected using Sidescan Sonar. Sub-bottom profiling data were collected using Deep Tow Boomer. These data were recorded digitally and are archived by BGS.

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    This British Geological Survey (BGS) marine geophysical survey took place in October 1999 in the Mersey Estuary aboard the Environment Agency vessel Goastal Guardian. The purpose was to gather data which could be used in Coastal and Estuary Evolution studies. Sea-floor data were collected using an echosounder and a sidescan sonar. Subsurface seismic data were gathered using a surface tow boomer. These data are archived by BGS. Technical details of the survey are contained in BGS report WB/00/02.

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    This British Geological Survey (BGS) marine geophysical survey took place during October/November 2003 in the Outer Bristol Channel aboard the RV Prince Madog. Netsurvey Ltd were commissioned to provide multibeam services. This survey was undertaken for the Outer Bristol Channel Marine Habitat Study (OBCMHS) as part of a series of five surveys. The OBCMHS was principally funded by the Aggregate Levy Sustainability Fund, MALSF, (administered in Wales by the Welsh Assembly Government), the Sustainable Land Won and Marine Dredged Aggregate Minerals Programme of the Office of the Deputy Prime Minister (ODPM), administered by Mineral Industry Research Organisation (MIRO), with contributions from others. Sea floor data collected were high-resolution multibeam bathymetry and side-scan sonar (on selected lines). Subsurface data were gathered using a surface tow boomer (on selected lines). The multibeam data collected on this survey were later merged with data from the 2004 survey and this combined dataset is available with the 2004 survey. Most of the data were recorded digitally. Some paper records were also generated also. These data are archived with the MEDIN Data Archive Centres (DAC), including the BGS DAC for geology and geophysics and the UKHO DAC for bathymetry data. Technical details of the survey are contained in BGS Cruise report IR/04/012 (http://nora.nerc.ac.uk/id/eprint/509269/) and BGS Cruise report IR/05/082 (http://nora.nerc.ac.uk/id/eprint/11121/). For further information on the surveys and general information on the OBCMHS see the final report (Mackie et al, 2006. BIOMOR Reports 4:ISBN 0-7200-0569-8).

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    This geophysical and multibeam survey took place in March/April 2006 in the Bristol Channel on board the MV Confidante. It was carried out by Gardline under contract to British Geological Survey (BGS) and Geotek Ltd. It was co-funded by UK Department of Trade and Industry for their Strategic Environmental Assessment Programme (SEA8) and NERC/BGS for their marine mapping programme. The objective was to collect data for investigations of sediment mobility and for monitoring sea bed morphology and sea bed sediment texture. Seafloor bathymetry data were collected using an EM3000 multibeam system and Edgetech 4200FS sidescan sonar. Sub-bottom seismic profiling data were collected using a surface tow boomer. These data were recorded digitally and are archived by BGS. Technical details of the survey are contained in Gardline Report 6749, the BGS cruise report and preliminary geological interpretation are contained in BGS Report CR/06/085. See the Offshore GeoIndex SEA layers and the SEA Portal https://www.bgs.ac.uk/data/sea/app/search.

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    This British Geological Survey (BGS) regional marine geophysical and sampling survey took place in September-October 1971 in Lyme Bay on board the fishing vessel Dorset Lass. The purpose was to obtain more information on sediment transport and solid geology, carried out in conjunction with the Engineering Geology Unit. Sonar records were obtained from a KH MS.47 transit sonar. Seabed samples were collected by scuba divers. These data are archived by BGS. Summary details of the survey are contained in Institute Geological Sciences (IGS) Report 79/10.

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    The JNCC marine survey was undertaken by CEFAS in April 2008 in the Dogger Bank area North Sea onboard the Cefas Endeavour. This work was in support of JNCC’s requirement to recommend sites for designation as Special Areas of Conservation (SACs) to UK Government, under the EC Habitats Directive. The aim was further developing methodologies for identifying and defining the extent of Annex I shallow sandbank habitat and to conduct new habitat mapping surveys to further develop and integrate geomorphological and biological survey methods and strategies to provide interpreted information in GIS for use in site designation and management of activities in the Dogger bank area. Multibeam bathymetry data were collected using a Kongsberg EM3000D and sidescan sonar data were collected using a Benthos SIS 1624. Groundtruthing techniques including video tows, Hamon grab sampling and beam trawling. The geology and geophysics component of the data are archived at the British Geological Survey (BGS) MEDIN Data Archive Centre (DAC) for Geology and Geophysics. Biological and bathymetry data are archived at DASSH and UKHO respectively. For more information see http://jncc.defra.gov.uk/page-4733, JNCC Report 429, available at http://jncc.defra.gov.uk/page-5076. Technical details of the survey are contained in CEFAS Cruise Report CEND 07/08.

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    This geophysical survey has been carried out by Marine Geophysics Unit of British Geological Survey (BGS) for BGS, the survey took place from August to September 1971 in the Sea of the Hebrides area, on board the MV Surveyor. The purpose was to collect data as part of a regional mapping programme. Sea floor data were collected using Transit sonar. In September trials were carried out with a sea bed scintillation probe (SBSP), but no records available. These data are archived by BGS. No survey report currently available.

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    The JNCC marine survey took place in May 2008 within the Submarine structures in the mid-Irish Sea Area of Search (AoS) and the Solan Bank AoS on board the RV CEFAS Endeavour. The aim was identifying habitats listed under Annex I of the EC Habitats Directive; primarily Submarine structures made by leaking gases in the former AoS and Reef habitat in the latter. Multibeam bathymetry was collected using a Kongsberg EM3000D system and sidescan sonar data which was collected using a Benthos SIS 1624 sidescan sonar. Ground-truthing techniques included towed & drop down video/stills and Hamon grab sampling. Rock dredge sampling was also used on a few stations to gather samples of epibiota from hard substrata to assist with the taxonomic ID of the video & still images. The geology and geophysics component of the data are archived at the British Geological Survey (BGS) MEDIN Data Archive Centre (DAC) for Geology and Geophysics. Biological and bathymetry data are archived at DASSH and UKHO respectively. For more information see http://jncc.defra.gov.uk/page-4732. Technical details of the survey are contained in JNCC report No. 430, http://jncc.defra.gov.uk/page-5347 and BGS subsample analysis report CR/09/51. JNCC Contract No: F90-01-1200.

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    This survey has been carried out in May/June 2009 off the east coast of East Anglia on board the CEFAS Endeavour under contract for the Aggregate Levy Sustainability Fund (MALSF) comprising the acquisition of groundtruthing data including vibrocore samples, clamshell grab samples, mini-Hamon grab samples, 2m Jennings beam trawls and various camera techniques as part of a Regional Environmental Characterisation. The sample sites were chosen based on data acquired on the BGS 2008/04 / CEND 18/08 geophysical survey which took place from the 27th September to the 30th October 2008. Further geophysical data was acquired using a multibeam echosounder and dual frequency side scan sonar. The survey was undertaken in joint collaboration between the British Geological Survey, the Centre for Ecology, Fisheries and Aquaculture Science (CEFAS) and Wessex Archaeology. BGS Internal Report IR/10/019.

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    This marine geophysical survey undertaken by Institute of Geological Sciences (BGS) part funded by the Water Resources Board took place March to June 1972 in The Wash on board the fishing vessel Exact. Sea floor data were collected using a transit sonar. Subsurface data were gathered using a pinger, boomer and sparker , a total of 426.5 miles were covered. These data are archived by BGS. Technical details of the survey are contained in BGS Internal Report WB/ MG/72/ 45, details of Wash surveys contained in WB/MG/74/030 and IGS report 78/18.