Date (Publication)

2016-04-17

Identifier

British Geological Survey / BGS_CMD_REF992

Maintenance and update frequency

notPlanned Not planned

Keywords

• NDGO0001

GEMET - INSPIRE themes

• Geology

SeaVoX Vertical Co-ordinate Coverages (L131)

• soil and sediment
• crust

Access constraints

otherRestrictions Other restrictions

Access constraints

otherRestrictions No restrictions, a copyright acknowledgement is required and permission from any third party for the release of the data has been obtained. Inclusion of any third party data will determine the copyright acknowledgement that needs to be made.

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.

Use limitation

unrestricted use, copyright acknowledgement - Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced Scottish Natural Heritage materials "Contains Scottish Natural Heritage materials ©Scottish Natural Heritage [year]"

Spatial representation type

grid Grid

Distance

5  urn:ogc:def:uom:EPSG::9001

Metadata language

EnglishEnglish

Topic category

• Geoscientific information

Geographic identifier

Clyde

Date (Revision)

2023-05-24

Geographic identifier

Argyll

Date (Revision)

2023-05-24

Geographic identifier

Irish Sea

Date (Creation)

2009-06-18

Geographic identifier

INNER SEAS OFF THE WEST COAST OF SCOTLAND

Date (Creation)

1954-01-01

Begin date

2015-11-25

End date

2016-04-17

Reference system identifier

OGP / urn:ogc:def:crs:EPSG::4326

Date (Revision)

2005

Distribution format

OnLine resource

BGS Offshore Geoindex ( HTTP )

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.

Hierarchy level

dataset Dataset

Statement

British Geological Survey was contracted to undertake the survey on behalf of Scottish Natural Heritage. NAVIGATION: A Trimble SPS461 with precise DGPS corrections provided via a Fugro MarineStar license, which provides approximately 0.10m accuracy in horizontal and 0.15m in the vertical. A Kongsberg Seatex Seapath 200 combines GPS and an MRU to provide vessel heading and motion data plus a secondary position feed. Soundings were reduced to Chart Datum in CARIS Hips and Sips v9.1. All control is referred to the European Terrestrial Reference System 1989 using the GRS80 Ellipsoid. Grid and orthometric heights are given in terms of WGS 84 UTM Zone 30 and Chart Datum. MULTIBEAM: EM3002D is a dual-headed multibeam system capable of producing up to 508 dynamically focused beams; this produces a swath width of up to 200° operable in depths of up to 200 m. The system operates in the 300 kHz frequency range, which ensures narrow beams and a small acoustic footprint, and is also robust under conditions with high particle content in the water column. Kongsberg acquisition software, Seafloor Information System (SIS). All multibeam data was processed in CARIS HIPS and SIPS. Tidal reduction was performed predominantly using RTK height, however when this dropped out for boxes T1Plus and D5 the tide gauge at Millport was used. IHO Order 1a. BACKSCATTER data: ARCGRID; TIF images; XYZ. Fledermaus (.sd) available on request. SIDE SCAN SONAR: Equipment trials - Data not available. TIDE: The VORF model was used for the majority of this project; Areas D6 and T4 experienced RTK drop out, as such VORF could not be used here. In these areas data from the Millport tide gauge was used for tidal reductions. 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.

File identifier

56b756be-ea8a-1448-e054-002128a47908 XML

Metadata language

EnglishEnglish

Hierarchy level

dataset Dataset

Date stamp

2023-05-24

Metadata standard name

MEDIN Discovery Metadata Standard

Metadata standard version

Version 2.3.5