Map based index (GeoIndex) landsat imagery
This layer of the map based index (GeoIndex) shows satellite data at different resolutions depending on the current map scale. At small scales, it is shown in generalised form with each pixel covering 300 metres, and at larger scales it is shown at its actual resolution of 30 metres. The satellite imagery in GeoIndex was acquired by the Landsat Thematic Mapper sensor between 1984 and 1990. The imagery has been processed by the BGS Remote Sensing Section to increase contrast and thus enhance natural boundaries. Winter imagery was chosen due to the low sun angle, which enables geomorphic features on the landscape to be distinguished and interpreted. The colours in the image are not what one would normally expect to see because we have used infrared wavelengths to help us extract more geological information than would be possible if we had used visible bands. To create a single image of the whole country, many smaller images covering different rectangular areas and taken at different dates have been patched together. This will in some cases produce marked changes where the smaller images meet and is due to the different conditions when the images were taken.
dataset
http://www.bgs.ac.uk/GeoIndex/landsat.htm#landsatTM
name: TM landsat imagery
function: information
http://mapapps2.bgs.ac.uk/ArcGIS/services/GeoIndexLite/landsat/MapServer/WMSServer
name: Landsat map theme
description: The wms layer for 'Landsat imagery' is held within the 'Landsat' map theme WMS layer which this URL connects to.
function: download
http://mapapps2.bgs.ac.uk/geoindex/home.html?theme=landsat
name: Landsat map theme
description: The user will need to select 'Map layers' from the top left menu and select the 'TM Landsat grey' or 'TM Landsat colour' check box from the drop down menu to view the data.
http://data.bgs.ac.uk/id/dataHolding/13605467
eng
OGP
urn:ogc:def:crs:EPSG::27700
Data is visible at all map scales.
geoscientificInformation
publication
2008-06-01
Landsat
Satellite imagery
revision
2011
NERC_DDC
-8.6500
2.0000
60.8400
49.7700
revision
2009
GBN
creation
1979
GREAT BRITAIN [id=139600]
2014
creation
2000
asNeeded
The satellite imagery was acquired by the Landsat Thematic Mapper sensor between 1984 and 1990. The imagery has been processed by the BGS Remote Sensing Section to increase contrast and thus enhance natural boundaries.
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
Geographic Information System
Not Entered
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.
otherRestrictions
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
+44 115 936 3100 Ex:3227
pointOfContact
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
+44 115 936 3143
+44 115 936 3276
distributor
NERC-BGS TL EPOM
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
+44 115 936 3100 Ex:3227
pointOfContact
2020-07-08T09:40:56