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.
dataset
https://map.bgs.ac.uk/arcgis/services/GeoIndex_Onshore/geophysics/MapServer/WMSServer?
name: Geophysics map theme
description: The wms layer for 'GeoIndex magnetic anomalies' is held within the 'Geophysics' map theme WMS layer which this URL connects to.
function: download
http://mapapps2.bgs.ac.uk/geoindex/home.html?layer=BGSMagAnom
name: GeoIndex magnetic anomalies
function: information
http://mapapps2.bgs.ac.uk/geoindex/home.html?layer=BGSMagAnomGrey
name: GeoIndex magnetic anomalies (grey shaded)
function: information
http://mapapps2.bgs.ac.uk/geoindex/home.html?layer=BGSMagAnomCol
name: GeoIndex magnetic anomalies (colour shaded)
function: information
http://data.bgs.ac.uk/id/dataHolding/13605465
eng
Data is visible at map scales above 1:250 000 scale.
geoscientificInformation
publication
2008-06-01
Magnetic anomalies
Geophysics
revision
2011
NERC_DDC
-7.5600
2.1800
61.5700
49.7600
revision
2009
GBN
creation
1979
GREAT BRITAIN [id=139600]
2014-01
creation
2000
asNeeded
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.
publication
2011
false
See the referenced specification
publication
2010-12-08
false
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
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.
British Geological Survey
Environmental Science Centre, Nicker Hill, Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
0115 936 3143
0115 936 3276
distributor
British Geological Survey
Environmental Science Centre, Nicker Hill, Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
0115 936 3143
0115 936 3276
pointOfContact
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
+44 115 936 3100
pointOfContact
2022-05-18