64001d13-098f-1e26-e054-002128a47908
English
dataset
British Geological Survey
+44 115 936 3100
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
enquiries@bgs.ac.uk
pointOfContact
2023-01-23
UK GEMINI
2.3
http://data.bgs.ac.uk/id/dataHolding/13607244
Lake Tana Seistec Boomer Data (NERC Grant NER/B/S/2002/00540)
2018-01-18
creation
http://data.bgs.ac.uk/id/dataHolding/13607244
This is Seistec Boomer data acquired on Lake Tana. If not familiar with this variant of standard Boomer, it has a line-in-cone.
Dr Dei Huws
Bangor University
School of Ocean Sciences
Menai Bridge
Anglesey
LL59 5AB
not available
pointOfContact
notApplicable
https://resources.bgs.ac.uk/images/geonetworkThumbs/64001d13-098f-1e26-e054-002128a47908.png
Geology
GEMET - INSPIRE themes
2008-06-01
publication
Seismic surveys
BGS Thesaurus of Geosciences
2011
revision
NERC_DDC
otherRestrictions
no limitations
The dataset is made freely available for access, e.g. via the Internet. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner(s) of any third party data / information contained in the dataset to make the dataset freely accessible.
otherRestrictions
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.
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
English
geoscientificInformation
ISO 3166_1 alpha-2
2009
revision
ET
ISO 3166_1 alpha-3
2009
revision
ETH
British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus
1979
creation
ETHIOPIA [id=692000]
37.0000
37.6500
11.5000
12.3500
2004-11-11
2004-11-14
sgy
http://www.bgs.ac.uk/services/ngdc/accessions/index.html#item106249
download
https://doi.org/10.1038/s41598-018-19601-w
information
http://www.bgs.ac.uk/services/ngdc/citedData/catalogue/046d06dd-ecaf-4f4c-8ba1-2f0254549c5c.html
information
dataset
dataset
INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology
2011
publication
See the referenced specification
false
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
2010-12-08
publication
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
false
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.