British Geological Survey (BGS) Geophysical and Multibeam Survey 2002/2: North Hatton Bank and North Rockall Basin (11/07/2002 to 31/07/2002)
This British Geological Survey (BGS) marine geophysical survey took place in July 2002 in the northern Rockall Trough and the northern end of Hatton Bank on board the RRS James Clark Ross (Cruise JR76). The purpose of the survey was 1) to in fill gaps in the existing seismic data coverage in order to address specific geological problems; 2) Identify windows in the Palaeogene lavas. Seafloor bathymetry data was collected using a Kongsberg-Simrad EM120 multibeam system. Subsurface seismic data were collected using an Airgun and Sparker, these data are archived by BGS and are available for download. Gravitational field, Magnetic field data were also collected. Most of the data were recorded digitally, and paper records were also generated. These data are archived by BGS. Technical details of the survey are contained in BGS Internal Report IR/02/152 (http://nora.nerc.ac.uk/id/eprint/528019). GeoIndex Offshore - https://mapapps2.bgs.ac.uk/geoindex_offshore/home.html?cruise=2002/2&.
dataset
BGS Offshore Geoindex
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British Geological Survey
:
BGS_CMD_REF295
English
Geoscientific information
GEMET - INSPIRE themes, version 1.0:
SeaVoX Vertical Co-ordinate Coverages (L131):
SeaDataNet Parameter Discovery Vocabulary (P021):
Free:
-18.2589,
58.4319,
-7.1816,
60.2178
Harker, Geikie, Lewis, Kennedy, Rosemary Bank, Darwin, Sula Sgeir, Lousy Bank, Bill Bailey's Bank, Faroe Bank, North Rockall Basin, North Hatton, Scottish Continental Shelf, Atlantic North-West Approaches, Rockall Trough and Faeroe/Shetland Channel, NORTHEAST ATLANTIC OCEAN (40W)
publication: 2002-07-31
2002-07-11
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2002-07-31
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, Echo Sounder, Gravimeter, Magnetometer and Sparker. The survey was undertaken by British Geological Survey. Airgun System: Source: An array of 5 x 40 cu inch Bolt 600B airguns with waveshape kits and time break solenoids. Hydrophone: A two-channel Geomechanique hydrophone summed to give a single channel 30m active length. Recording: A CODA DA200, software version 2.2.16.4 (2002) four-channel digital recording and processing system was utilised to record the raw data. The data were recorded on Exabyte tape in CODA format with a sampling interval of 0.2 msec, record length of 4 seconds and bandpass filter of 25-500 Hz. Online processing: the CODA system was also used to process the data on-line and produce a real time hard copy output on a Waverley 3710 thermal printer. Processes applied were time varied gain (TVG), time varied filtering (TVF) and trace mixing and, in extremely large amplitude sea swell situations, a swell filter. Both TVG and TVF were applied from the sea bed, which was tracked automatically. A 1.4sec record length was used for the on-line hard copy, with a delay adjusted to give an optimum record for the water depth. For more detailed information on the acquisition equipment and data collection techniques, operational standards, data processing methods and quality control procedures used on this survey see the Report of Survey/Cruise Report and associated documentation where available. The information available may vary depending on the age of the survey. Data are checked and loaded to the BGS Coastal and Marine data management system following BGS marine data management procedures.
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
abc9f747-535e-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