BGS Data Catalogue
Marine Hard Substrate Dataset (DiGHardSubstrate250k)
The Marine Hard Substrate dataset maps areas of rock or hard substrate outcropping or within 0.5m of the sea-bed. The interpretation was based on a variety of data sourced from within the British Geological Survey and externally. Data consulted includes archive sample and seismic records, side scan sonar, multibeam bathymetry and Olex datasets. The distribution of hard substrate at the seabed, or within 0.5 m is important in dictating the benthic assemblages found in certain areas. Therefore, an understanding of the distribution of these substrates is of primary importance in marine planning and designation of Marine Conservation Zones (MCZs) under the Marine and Coastal Access Act, 2009. In addition, a number of other users will value these data, including marine renewable companies, aggregate companies, the fishing and oil and gas industries. In order to address this issue it was necessary to update British Geological Survey sea-bed mapping to delineate areas where rock, boulders or cobbles are present at, or within 0.5m of the sea-bed surface. A polygon shape file showing areas of rock or hard substrate at, or within 0.5m of the sea-bed has been developed. The dataset has been created as vector polygons and are available in a range of GIS formats, including ArcGIS (.shp), ArcInfo Coverages and MapInfo (.tab). More specialised formats may be available but may incur additional processing costs.
Default
Identification info
- Metadata Language
- English (en)
- Dataset Reference Date ()
- 2011-04-01
- Maintenance and update frequency
- irregular
- GEMET - INSPIRE themes
- BGS Thesaurus of Geosciences
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Hardness
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Reefs
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Offshore resources
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Sea floor sediments
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Rock structures
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Surveys
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Geological environment
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Marine geology
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- Keywords
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NERC_DDC
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- Limitations on Public Access
- otherRestrictions
- Other constraints
- The usual BGS licensing terms and conditions apply to external use of the data. Data licence required.
- Use constraints
- otherRestrictions
- Other constraints
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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
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The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (iprdigital@bgs.ac.uk) if further advice is required with regard to permitted usage. iprdigital@bgs.ac The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (iprdigital@bgs.ac.uk) if further advice is required with regard to permitted usage.
- Spatial representation type
- vector
- Denominator
- 250000
- Topic category
-
- Geoscientific information
- Extent
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UK CONTINENTAL SHELF [id=121701]
- Dataset Reference Date ()
- 1979
))
- End date
- 2011
Spatial Reference System
Distribution Information
- Data format
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ArcGIS .shp
(Current BGS version
) -
ArcInfo Coverages
(Current BGS version
) -
MapInfo .tab
(Current BGS version
)
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- Resource Locator
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BGS Homepage
(
HTTP
)The BGS Homepage is an entry point to the BGS data services.
- Resource Locator
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BGS Homepage
(
HTTP
)The BGS Homepage is an entry point to the BGS data services.
- Quality Scope
- dataset
Report
- Dataset Reference Date ()
- 2011
- Explanation
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See the referenced specification
- Degree
Report
- Dataset Reference Date ()
- 2010-12-08
- Explanation
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See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
- Degree
- Statement
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An ESRI polygon shapefile showing the potential extent of rock and hard substrate at, or near (0.5m), the seabed surface. This has been developed from the rock point shapefile. Additional data and information included available multibeam, side scan, admiralty charts and video/photo.
