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.
 
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
Identifier
http://data.bgs.ac.uk/id/dataHolding/13605465

  Distributor

  +44 115 936 3276 

  Custodian

  Originator

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

  +44 115 936 3276 
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

Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13605465
 
 

  Overviews


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