Scotland's wildness - absence of modern artifacts
ztv_unlog_256
One of four component layer of the Scottishmap of relativewildness. This layer shows the level of modern artefacts (detractors)that are visible. The dataset is on a scale of 1-256 indicating relative levels of visual influence. Consequently the data is best viewed at a national or regional scale. The methodology is adapted from the 2008 Wildness Study in the Cairngorms National Park. NextMap Digital Surface Model (DSM) gives the height of the surface including the detractors from which a viewshed can be produced. Viewsheds up to 15 km were created for 3 feature layersat 50m resolution, 1) Buildings and other structures, 2) Railway lines, roads and tracks and 3) Pylons and ski lifts. A fourth viewshed up to 30 km was created for wind turbineswhose heights were added to a DTM. The resulting calculations were then re-scaled 1-256 to produce the map of lack of built human artefacts.
dataset
https://gateway.snh.gov.uk/natural-spaces/dataset.jsp?dsid=WILDNESS-ART
name: SNH Natural Spaces
function: download
WILDNESS_ART
eng
urn:ogc:def:crs:EPSG::27700
environment
Countryside conservation
revision
2007-07-23
-8.421293
-0.619341
60.863404
54.543734
revision
2006-07-24
GB-SCT
2010
2013
revision
2012-02-02
creation
2014-01-31
revision
2014-06-23
notPlanned
Data sources: OS MasterMap for buildlings, railway lines, roads, tracks, pylons: 2014 SNH, RenewablesUK and OS Points of Interest for wind turbine locations: Dec 2013 The 4 layers were processed in the voxel viewshed tool developed by Leeds University, based on the resampled NextMap DSM. All 4 layers were processed at 50m resolution. Normalised unlogged values from the viewhsed tool were used. The four layers were added together and then the values logged. The accuracy of the dataset is dependent upon the completeness, spatial accuracy and date of all the above sources. http://www.snh.gov.uk/protecting-scotlands-nature/looking-after-landscapes/landscape-policy-and-guidance/wild-land/mapping/
ESRI ArcINFO grid
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Available under an OS Open Data licence. You must always use the following attribution statement to acknowledge the source of the information: Copyright Scottish Natural Heritage Contains Ordnance Survey data © Crown copyright and database right (year)
no limitation
SNH Landscape Group
Scottish Natural Heritage
Great Glen House, Leachkin Road
Inverness
IV3 8NW
United Kingdom
014630725000
pointOfContact
GI Analyst
Scottish Natural Heritage
Inverdee House, Baxter Street, Torry
Aberdeen
AB11 9QA
United Kingdom
01224 266502
custodian
Data Support Officer
Scottish Natural Heritage
Great Glen House
Leachkin Road, Inverness
IV3 8NW
01463 725000
distributor
GI Analyst
Scottish Natural Heritage
Inverdee House, Baxter Street, Torry
Aberdeen
AB11 9QA
United Kingdom
01224 266502
pointOfContact
2016-10-04