c5a7ef2f-f8c4-066c-e044-0003ba9b0d98
English
dataset
British Geological Survey (BGS)
+44 (0)131 667 1000
+44 (0)131 668 4140
The Lyell Centre, Research Avenue South
Edinburgh
EH14 4AP
UK
enquiries@bgs.ac.uk
pointOfContact
2024-03-27
MEDIN Discovery Metadata Standard
Version 2.3.5
www.epsg.org
2005
revision
urn:ogc:def:crs:EPSG::4326
OGP
Wessex Archaeology (WSX) Geophysical Survey: WESSEX2A: (17/Feb/2005 to 17/Feb/2005)
2005-02-17
publication
BGS_CMD_REF652
British Geological Survey
Wessex Archaeology (WA) was commissioned by English Heritage (EH) to undertake geophysical surveys as part of the project entitled ‘Wrecks on the Seabed: Assessing, Evaluating and Recording’, supported by Round 2 of the Aggregate Levy Sustainability Fund (ALSF). The specific aim of this project was to provide industry, regulators and contractors with guidance on the archaeological assessment, evaluation and recording of wreck sites. ‘Assessment, evaluation and recording’ are taken to include various methods of archaeological investigation that are intended to improve the understanding, preservation and appreciation of the historic environment. Geophysical surveys were conducted over four wreck site areas. This archive relates to the geophysical survey over Hastings Shingle Bank covering the area of the wreck Thomas Lawrence. During the geophysics survey sidescan sonar, single beam echosounder, multibeam echosounder and magnetometer data were acquired. Sidescan sonar, magnetometer and single beam bathymetric surveys were conducted over the Hastings Shingle Bank by Titan Surveys Ltd., aboard the survey vessel Titan Explorer, under supervision from WA staff. These surveys was conducted intermittently during 15 survey days over 47 days between the 17th February – 5th April 2005 with substantial delays due to adverse weather conditions. The geology and geophysics component of the data are archived at British Geological Survey (BGS) MEDIN Data Archive Centre (DAC) for Geology and Geophysics. Data were also provided to other archive centres as appropriate.
British Geological Survey (BGS)
+44 (0)131 667 1000
+44 (0)131 668 4140
The Lyell Centre, Research Avenue South
Edinburgh
EH14 4AP
UK
enquiries@bgs.ac.uk
custodian
Wessex Archaeology
offshoredata@bgs.ac.uk
originator
notPlanned
NDGO0001
Geology
GEMET - INSPIRE themes, version 1.0
2008-06-01
publication
soil and sediment
crust
SeaVoX Vertical Co-ordinate Coverages (L131)
2010-05-18
revision
Bathymetry and Elevation
Magnetics
Side-scan sonar
SeaDataNet Parameter Discovery Vocabulary (P021)
2011-07-27
revision
otherRestrictions
otherRestrictions
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.
unrestricted use, copyright acknowledgement - Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced Wessex Archaeology materials "Contains Wessex Archaeology materials ©Wessex Archaeology [year]"
grid
5
English
geoscientificInformation
BGS Gazetteer
2024-03-27
revision
Dungeness-Boulogne
Charting Progress 2: Regional Sea Boundaries
2009-06-18
creation
Eastern Channel
The SeaVoX Salt and Fresh Water Body Gazetteer: Sub-Ocean Category
1954-01-01
creation
DOVER STRAIT
0.5315
0.6344
50.6977
50.7516
2005-02-17
2005-02-17
British Geological Survey (BGS)
+44 (0)131 667 1000
+44 (0)131 668 4140
The Lyell Centre, Research Avenue South
Edinburgh
EH14 4AP
UK
enquiries@bgs.ac.uk
distributor
http://mapapps2.bgs.ac.uk/geoindex_offshore/home.html?cruise=WESSEX2A
HTTP
BGS Offshore Geoindex
GeoIndex allows users to search for information about BGS data collections covering the UK and other areas world wide. Access is free, the interface is easy to use, and it has been developed to enable users to check coverage of different types of data and find out some background information about the data. More detailed information can be obtained by further enquiry through the website.
search
dataset
INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of unknown theme
2011
publication
See the referenced specification
false
Geophysical equipment types used included: Echo Sounder, Magnetometer and Sidescan Sonar. Titan Environmental Surveys Ltd was contracted to undertake the survey on behalf of Wessex Archaeology. The navigation and data acquisition system used aboard the Titan Explorer was based on Trimble’s HYDROpro software. The primary and secondary positioning systems, echosounder, magnetometer and heading sensor were interfaced to this system. In addition, position data, analogue fix marks and digital fix information were output to the sidescan sonar, magnetometer and echosounder systems. Single beam bathymetric data was acquired using an Odom Hydrotrac echosounder and a CMS-25 motion reference unit on all sidescan sonar and magnetometer survey lines conducted over the 2km x 2km area. Bathymetric data were recorded digitally by HYDROpro, and reduced to Chart Datum using post-processed kinematic (PPK) observed tides. A Klein 3000 dual frequency digital sidescan sonar, which operates at both 125kHz and 445kHz simultaneously, was used for all sidescan surveys. Magnetometer data over the Hastings Shingle Bank area were collected using a Geometrics G881 Caesium Magnetometer. Multibeam echosounder data were acquired from the vessel Wessex Explorer between the 15th and 19th August 2005. Navigation was provided by a Fugro Omnistar 8300 HP GPS receiver, with corrections provided via satellite subscription service which gave a positional accuracy of ±10cm. Multibeam bathymetric data was acquired by Netsurvey Ltd. using a Reson 8125 Multibeam echosounder and a MHARS motion reference unit and gyro. Sound velocity profiles were recorded at the start of each multibeam survey and then as required during the survey. The raw bathymetric data were processed Netsurvey Ltd, in order to apply tidal corrections and remove any spikes in the data.