Date ( Creation )

2018-01-18

Identifier

http://data.bgs.ac.uk/id/dataHolding/13607244

Maintenance and update frequency

notApplicable notApplicable

GEMET - INSPIRE themes

• Geology

BGS Thesaurus of Geosciences

• Seismic surveys

Keywords

• NERC_DDC

Access constraints

otherRestrictions Other restrictions

Use constraints

otherRestrictions 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.

Other constraints

Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Metadata language

English English

Topic category

• Geoscientific information

Geographic identifier

ET

 

Date ( Revision )

2009

Geographic identifier

ETH

 

Date ( Revision )

2009

Geographic identifier

ETHIOPIA [id=692000]

 

Date ( Creation )

1979

Distribution format

• sgy ()

OnLine resource

http://www.bgs.ac.uk/services/ngdc/accessions/index.html#item106249  

OnLine resource

https://doi.org/10.1038/s41598-018-19601-w  

OnLine resource

http://www.bgs.ac.uk/services/ngdc/citedData/catalogue/046d06dd-ecaf-4f4c-8ba1-2f0254549c5c.html  

Hierarchy level

dataset Dataset

Other

dataset

Statement

The seismic survey was conducted using a surface-towed IKB Seistec boomer acquisition system, comprising a standard boomer plate combined with a line-in-cone hydrophone receiver arrangement, which is designed to reduce acoustic noise in a shallow water environment (Simpkin and Davis 1993). The system was powered by a 4 kV capacitor discharging power supply unit, and towed on the survey vessel’s aft quarter, in the relatively undisturbed water between the bow wave and the wake. A 200microsecond broadband pulse was produced at the boomer source, at an energy level of 180J and a repetition interval of 500ms. Survey speed was maintained at between 4 and 6kts with GPS positioning yielding location information typically to within 3-8m. Data were recorded in standard SEG-Y format with a record length of 150 ms and sampling interval of 16 micros.

gmd:MD_Metadata

File identifier

64001d13-098f-1e26-e054-002128a47908   XML

Metadata language

English English

Hierarchy level

dataset Dataset

Date stamp

2021-10-23

Metadata standard version

2.3

Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13607244