British Geological Survey (BGS) Geophysical Survey 1981/6: Bristol Channel & SW Approaches (21/09/1981 to 29/09/1981)
Report: Brett, CP. 1981. Operations report on Project 81/06. A Regional Geophysical Survey in the Bristol Channel and South West Approaches. (IGS Report No 122) The objectives of this survey were to fill in gaps in the previously surveyed areas in the Bristol Channel and Nymphe Bank sheets of the IGS 1:250000 map series.
Simple
- Date (Publication)
- 1981-09-29
- Citation identifier
- British Geological Survey / BGS_CMD_REF196
- Point of contact
-
Organisation name Individual name Electronic mail address Role British Geological Survey (BGS)
Custodian British Geological Survey (BGS)
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 British Geological Survey materials "Contains British Geological Survey materials ©UKRI [year]"
- Spatial representation type
- Grid
- Distance
- 5 5 urn:ogc:def:uom:EPSG::9001
- Language
- English
- Topic category
-
- Geoscientific information
- Geographic identifier
-
Haig Fras
BGS Gazetteer 2024-09-07 revision
- Geographic identifier
-
Lands End
BGS Gazetteer 2024-09-07 revision
- Geographic identifier
-
Nymphe Bank
BGS Gazetteer 2024-09-07 revision
- Geographic identifier
-
Lundy
BGS Gazetteer 2024-09-07 revision
- Geographic identifier
-
Bristol Channel
BGS Gazetteer 2024-09-07 revision
- Geographic identifier
-
Western Channel & Celtic Sea
Charting Progress 2: Regional Sea Boundaries 2009-06-18 creation
- Geographic identifier
-
BRISTOL CHANNEL
The SeaVoX Salt and Fresh Water Body Gazetteer: Sub-Ocean Category 1954-01-01 creation
- Geographic identifier
-
CELTIC SEA
The SeaVoX Salt and Fresh Water Body Gazetteer: Sub-Ocean Category 1954-01-01 creation
![thumbnail](https://metadata.bgs.ac.uk/geonetwork/srv/api/regions/geom.png?geomsrs=EPSG:4326&geom=POLYGON((-3.3881%2050.7126,-3.3881%2051.6947,-6.6419%2051.6947,-6.6419%2050.7126,-3.3881%2050.7126)))
- Begin date
- 1981-09-21
- End date
- 1981-09-29
- 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)
Distributor
- OnLine resource
-
Protocol Linkage Name HTTP
http://mapapps2.bgs.ac.uk/geoindex_offshore/home.html?cruise=1981/6 BGS Offshore Geoindex
- Hierarchy level
- Dataset
Conformance result
- Date (Publication)
- 2011
- Explanation
-
See the referenced specification
- Pass
- No
- Statement
-
Geophysical equipment types used included: Airgun/Sleeve Gun, Deep Tow Boomer, Echo Sounder, Gravimeter, Magnetometer, Sidescan Sonar and Sparker. The survey was undertaken by British Geological Survey. Navigation: Magnavox satellite navigation system integrated with MX610 doppler sonar and Arma Brown Mk I Mod 5 gyro compass. Dacca Mk 21 main chain receiver - optional integration with above. Equipment: Huntec deep tow boomer system with remote controlled winch, Krohn-hite bandpass filter and display on an EPC 3200 graphic recorder. Atlas Deso 10 echo sounder with hull mounted transducers (33 and 210KHz) and Edig 10 digitiser unit. LaCoste & Romberg S75 air-sea gravity meter. EG&G sparker system, with up to 5kJ capability. One 3-element and one 9-element spark array, Krohn-hite bandpass filter, TSS Model 307 TVG amplifier, TSS Mobel 302 swell filter and display on an EPC 4600 or EPC 3200 graphic recorder, Teledyne hydrophone system. UDI AS350 dual channel side scan sonar system with catamaran tow fish, 2500ft tow cable and remote controlled winch. Display on an EPC 3200 graphic recorder and firing sequence controlled by the seismic control system. Bolt 600B air gun, two guns with standard (1-40 cu.in.) range of chamber sizes, Krohn-hite bandpass filter, TSS Model 307 TVG amplifier and display on an EPC 3200 graphic recorder. For more detailed information see the Cruise Report.
Metadata
- File identifier
- abc9f747-53bb-0f38-e044-0003ba9b0d98 XML
- Metadata language
- English
- Hierarchy level
- Dataset
- Date stamp
- 2024-09-07
- 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)
Point of contact