Department for Environment, Food and Rural Affairs (DEFRA) MCZ: Greater Haig Fras: Multibeam, Sidescan Sonar, Benthic Sampling and Photo/Video Survey ghgf_cend1012: Western Channel & Celtic Sea (05/07/2012 - 11/07/2012)

A seabed survey for the purpose of habitat identification and mapping at the Greater Haig Fras recommended Marine Conservation Zone (rMCZ) site, west of Cornwall, UK. Comprising acoustic corridors overlying a 5 km triangular grid of ground-truth sampling stations. Three nested full coverage areas in the west, centre and east of the site. Acoustic survey by multibeam (bathymetry and backscatter) and sidescan sonar (part coverage only). Ground-truth sampling by grabs and underwater cameras (video & stills images). Broadscale habitat (BSH) and habitat FOCI (Features of Conservation Interest) recorded at time of sampling and included in cruise/survey report. More in-depth interpretation to be made in a Post-Survey Site Report, following integrated assessment of acoustics and outputs from laboratory analysis of benthic samples. Central, full coverage area targeted to provide data sets against which the capabilities of AutoSub (an AUV owned by National Oceanogrephic Centre (NOC), Southampton, UK) could be tested. These data are archived with the Marine Environmental Data and Information Network (MEDIN) Data Archive Centres (DACs) including the British Geological Survey (BGS) DAC for geology and geophysics, The Archive for Marine Species and Habitats Data (DASSH) and the United Kingdom Hydrographic Office (UKHO) bathymetry DAC. The full site data package including raw is also available on request from BGS.

Simple

Date (Publication)
2012-07-11
Citation identifier
British Geological Survey / BGS_CMD_REF925
Point of contact
Organisation name Individual name Electronic mail address Role

British Geological Survey (BGS)

enquiries@bgs.ac.uk

Custodian

Department for Environment, Food and Rural Affairs

offshoredata@bgs.ac.uk

Originator
Maintenance and update frequency
Not planned
Keywords

GEMET - INSPIRE themes, version 1.0

SeaVoX Vertical Co-ordinate Coverages (L131)

SeaDataNet Parameter Discovery Vocabulary (P021)
Access constraints
Other restrictions
Access constraints
No restrictions, a copyright acknowledgement is required and permission from any third party for the release of the data has been obtained. Inclusion of any third party data will determine the copyright acknowledgement that needs to be made.
Use constraints
Other restrictions
Other constraints

The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.

Use limitation

unrestricted use, copyright acknowledgement - Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced Department for Environment, Food and Rural Affairs materials "Contains Department for Environment, Food and Rural Affairs materials @Crown Copyright [year]"

Spatial representation type
Grid
Distance
5  urn:ogc:def:uom:EPSG::9001
Language
English
Topic category
  • Geoscientific information
Geographic identifier
Labadie Bank

BGS Gazetteer 2024-12-06 revision

Geographic identifier
Haig Fras

BGS Gazetteer 2024-12-06 revision

Geographic identifier
Western Channel & Celtic Sea

Charting Progress 2: Regional Sea Boundaries 2009-06-18 creation

Geographic identifier
CELTIC SEA

The SeaVoX Salt and Fresh Water Body Gazetteer: Sub-Ocean Category 1954-01-01 creation

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S
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W
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Begin date
2012-07-05
End date
2012-07-11
Reference system identifier
OGP / urn:ogc:def:crs:EPSG::4326

www.epsg.org 2005 revision

Distribution format
    Distributor contact
    Organisation name Individual name Electronic mail address Role

    British Geological Survey (BGS)

    enquiries@bgs.ac.uk

    		Distributor
    OnLine resource
    Protocol Linkage Name

    HTTP

         		http://mapapps2.bgs.ac.uk/geoindex_offshore/home.html?cruise=MCZ_ghgf_cend1012

    BGS Offshore Geoindex
    Hierarchy level
    Dataset

    Conformance result

    Title

    INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of unknown theme
    Date (Publication)
    2011
    Explanation

    See the referenced specification
    Pass
    No
    Statement

    Sample equipment types used included: Grab: Amon or Hamon. CEFAS was contracted to undertake the survey on behalf of Department for Environment, Food and Rural Affairs. Positions in Lat/Long WGS84 collected by Differential Global Positioning System (D-GPS). Multibeam bathymetry corrected to Chart Datum. Depths recorded for benthic sampling stations were read from ship's echo sounder. The survey collected data from Kongsberg EM2040 multibeam system to derive bathymetry and backscatter products. Sidescan was Edgetech 4200. The EM2040 system was calibrated by a 'patch test' on 4th July 2012. Acoustic acquisiton software = Kongsberg SIS. Processing software = Caris HIPS. Replacement Motion Reference Unit (MRU) fitted on 13 Feb 2012. Video capture by Kongsberg undewater camera with video and stills capability. Benthic sampling by 0.1 sq m Hamon Grab fitted with video camera. Sediment samples taken for particle size analysis (PSA). Faunal samples washed over 1 mm sieve and preserved in formalin for laboratory analysis.

    Metadata

    File identifier
    279464ee-21a3-3fd8-e054-002128a47908 XML
    Metadata language
    English
    Hierarchy level
    Dataset
    Date stamp
    2024-12-06
    Metadata standard name

    MEDIN Discovery Metadata Standard
    Metadata standard version

    Version 2.3.5
    Metadata author
    Organisation name Individual name Electronic mail address Role

    British Geological Survey (BGS)

    enquiries@bgs.ac.uk

    		Point of contact
     
     

    Overviews

    Spatial extent

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    Keywords



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