Dataset description

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.

Constraints

Free access. The usual BGS licensing terms and conditions apply to external use of the data.

Further information

For more information please contact:

Enquiries
British Geological Survey
Environmental Science Centre, Nicker Hill, Keyworth
Nottingham
NG12 5GG

Tel : +44 (0)115 936 3143
Fax :+44 (0)115 936 3276
Email :enquiries@bgs.ac.uk

 

Further details

Dataset details

Language	English
Curator	British Geological Survey
Supply media/format	Not available
Storage format	Digital:ESRI Files
Frequency of update	as needed
Start of capture	2000
End of capture	Not known
Contact details
Department	Enquiries
Organisation	British Geological Survey
Address	Environmental Science Centre, Nicker Hill, Keyworth
City	Nottingham
County	Nottinghamshire
Country	United Kingdom
Postcode	NG12 5GG
E-mail	enquiries@bgs.ac.uk
Telephone	+44 (0)115 936 3143
Fax	+44 (0)115 936 3276
Keywords
Topic category	geoscientificInformation (information pertaining to earth sciences)
Keywords and Keyphrases	GEOPHYSICS MAGNETIC ANOMALIES
Keyword source	BGS Keyphrases
Spatial details
Spatial Reference System	OSGB 1936 / British National Grid [27700]
Dataset extent
Coverage (Lat/Long)	North boundary : 61.57 East boundary  : 2.18 South boundary : 49.76 West boundary  : -7.56
Metadata
Metadata language	English
Metadata last updated	27th January 2011
Metadata standard	ISO standard 19115:2003
Copyright and IPR
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.

W -7.56	61.57 N
S 49.76	2.18 E