Useful Shapefiles
GPS Control Network
SWCM maintains a network of GPS control points around the South West coast. In January 2016 all of the control points were updated to the OSTN15 transformation. The Map Viewer uses the OSTN15 coordinates. Both the OSTN02 and the OSTN15 control network shapefiles are available for download:
Topographic Data
SWCM have 153 survey units, which include 902 interim profiles and 3,430 baseline profiles around the South West coast.
Cliff Top Mapping
SWCM have cliff lines derived from 2006 and 2009 datasets, consisting of cliff top, intermediate and seaward cliff lines.
National Coastal Erosion Risk Mapping (NCERM)
Cumulative erosion/accretion rates around the South West coastline over time using both 1) the No Active Intervention policy scenario and 2) with the implementation of Shoreline Management Plan 2 policies.
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