Map based index (GeoIndex) magnetic anomalies
This low-resolution image has been produced from BGS airborne and marine magnetic data. The colour was generated using the BGS COLMAP software package. Colour levels are defined by histogram equalisation. Combining this image with the grey shaded relief image produces a similar image to the colour shaded relief image. A published coloured shaded relief map, using the full resolution of the data and produced at a scale of 1: 1500 000, is available. The map covers a larger area than this image, and includes additional data from other sources. The data used to compile this image are available in various forms for academic and commercial licensing. The data from surveys covering the UK mainland have been digitised from their original analogue form. Elsewhere data were acquired digitally. Standard methods of processing were used to remove diurnal and secular variations and to minimise line intersection errors. While efforts have been made to remove artefacts from the data, some may remain between adjacent datasets. Generally anomalies over man-made structures have not been removed. The data have been interpolated onto a 1km x 1km grid using a variable tension technique, and smoothed.
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Citation proposal
British Geological Survey. Map based index (GeoIndex) magnetic anomalies. https://services.mspdata.eu:/geonetwork/srv/api/records/9df8df53-2a93-37a8-e044-0003ba9b0d98 |
Simple
- Date ( Creation )
- 2000
Distributor
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
Custodian
British Geological Survey
The Lyell Centre, Research Avenue South
EDINBURGH
LOTHIAN
EH14 4AP
United Kingdom
Originator
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
- Maintenance and update frequency
- asNeeded As needed
- GEMET - INSPIRE themes
-
- Geology
- BGS Thesaurus of Geosciences
-
- Geophysics , Magnetic anomalies
- Keywords
-
- NERC_DDC
- Use limitation
- Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk ) for advice, should the position not be clear.
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- otherRestrictions
- Denominator
- 10000000
- Metadata language
- English English
- Topic category
-
- Geoscientific information
- Geographic identifier
-
GBN
- Date ( Revision )
- 2009
- Geographic identifier
-
GREAT BRITAIN [id=139600]
- Date ( Creation )
- 1979
N
S
E
W
))
- Supplemental Information
- Data is visible at map scales above 1:250 000 scale.
- Reference system identifier
-
OGP
/
urn:ogc:def:crs:EPSG::27700
- Date ( Revision )
- 2005
- Distribution format
-
- Unknown (Unknown )
Distributor
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
- OnLine resource
- Magnetic anomalies
- OnLine resource
-
Geophysics map theme
The wms layer for 'GeoIndex magnetic anomalies' is held within the 'Geophysics' map theme WMS layer which this URL connects to.
- OnLine resource
-
Geophysics map theme
The user will need to select 'Map layers' from the top left menu and select the 'Magnetic anomalies' check box from the drop down menu to view the data.
- Hierarchy level
- dataset Dataset
- Other
- dataset
Conformance result
- Date ( Publication )
- 2011
- Explanation
- See the referenced specification
- Pass
- false
Conformance result
- Date ( Publication )
- 2010-12-08
- Explanation
- See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
- Pass
- false
- Statement
- The data from surveys covering the UK mainland have been digitised from their original analogue form. Elsewhere data were acquired digitally. Standard methods of processing were used to remove diurnal and secular variations and to minimise line intersection errors. While efforts have been made to remove artefacts from the data, some may remain between adjacent datasets. Generally anomalies over man-made structures have not been removed.
Metadata
- File identifier
- 9df8df53-2a93-37a8-e044-0003ba9b0d98 XML
- Metadata language
- English English
- Hierarchy level
- dataset Dataset
- Date stamp
- 2017-01-17
- Metadata standard name
- NERC profile of ISO19115:2003
- Metadata standard version
- 1.0
Point of contact
British Geological Survey
-
Royles,Christopher P
(NERC-BGS Geophysicist )
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
- Dataset URI
- http://data.bgs.ac.uk/id/dataHolding/13605465