British Geological Survey (BGS) Geophysical Survey 1983/6: Southern North Sea (31/08/1983 to 18/09/1983)

Report: Brett, CP. 1984. Operations Report on Project 83/06. A Regional Geophysical Survey in the Southern North Sea. (IGS Report No 139). The primary objective was to survey areas of the Thames Estuary and Ostend sheets of the BGS 1:250,000 map series.
dataset
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British Geological Survey : BGS_CMD_REF210
English
Geoscientific information
GEMET - INSPIRE themes, version 1.0: SeaVoX Vertical Co-ordinate Coverages (L131): SeaDataNet Parameter Discovery Vocabulary (P021):
Free:
1.3906, 51.0824, 2.7564, 52.3124
Thames Estuary, Ostend, East Anglia, Flemish Bight, Eastern Channel, Southern North Sea, DOVER STRAIT, NORTH SEA
publication: 1983-09-18
1983-08-31 - 1983-09-18
grid
British Geological Survey (BGS)
The Lyell Centre, Research Avenue South, Edinburgh, EH14 4AP, UK
tel: +44 (0)131 667 1000
email: enquiries@bgs.ac.uk
Role: custodian
British Geological Survey (BGS)
The Lyell Centre, Research Avenue South, Edinburgh, EH14 4AP, UK
tel: +44 (0)131 667 1000
email: offshoredata@bgs.ac.uk
Role: originator

Data Quality

Geophysical equipment types used included: Airgun/Sleeve Gun, Deep Tow Sparker, Echo Sounder, Gravimeter, Magnetometer, Pinger, Sparker and Surface Tow Boomer. The survey was undertaken by British Geological Survey. Navigation: Magnavox satellite navigation system integrated with MX610 doppler sonar and Arma Brown Mk1 Mod 5 or Mk 1C gyro compass. Decca Mk21 main chain receiver - optional integration with above. Mk 21 lat-lon convertor. Equipment: Bolt 600B four guns with standard (1-40 cu.in.) range of chamber sizes, wave shape kits for 40 cu.in., BGS firing delay unit for synchronisation, Kemo bandpass filter, TSS 307 TVG amplifier and display on an EPC 4600 or EPC 3200 graphic recorder. Geomecanique 2 channel, 30m hydrophone system. Containerised Compare Reavell VHP 36 compressor system. Huntec deep tow boomer/sparker system with remote controlled winch, adaptive processing unit, Krohn-hite bandpass filter and display on EPC 3200 graphic recorder. Teledyne 7 channel, 10m hydrophone system. EG&G Surface tow boomer. Kemo bandpass filter, TSS 307 TVG amplifier, TSS 302 swell filter and display on EPC 3200 graphic recorder. Teledyne 7 channel, 10m hydrophone system. Atlas Deso 10 echo sounder with hull mounted transducers (33 and 210kHz) and Edig 10 digitiser unit. 33kHz channel with selectable 7 or 19 element transducer for deep water operation. LaCoste and Romberg S75 air-sea gravity meter. Worden land gravity meter for base ties. Barringer proton magnetometer - two tow cable sensor assemblies. Cycling controlled by seismic control system to eliminate sparker interference. Edo Western 248 pinger, 3.5/7.0kHz, 10 kW, towed fish transducer. Used with TSS 302 swell filter, display on EPC 3200 graphic recorder. EG&G surface sparker system - up to 2KJ capability. One 3-element and one 9-element spark array, Kemo bandpass filter, TSS 307 TVG amplifier, TSS 302 swell filter and display on EPC 4600 or EPC 3200 graphic recorder. Teledyne 7 channel, 10m hydrophone system. For more detailed information see the Cruise Report.
Minimal Distance: 5 urn:ogc:def:uom:EPSG::9001
INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of unknown theme

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.

Metadata about metadata

abc9f747-53b3-0f38-e044-0003ba9b0d98
British Geological Survey (BGS)
The Lyell Centre, Research Avenue South, Edinburgh, EH14 4AP, UK
tel: +44 (0)131 667 1000
email: enquiries@bgs.ac.uk
Role: point of contact
2024-04-24

Coupled Resource