National Coastal Change Assessment (NCCA) 2017

What is it: 

The National Coastal Change Assessment (NCCA) aims to establish historic coastal change by extracting the georectified coastline position from OS 2nd Edition Country Series maps (1892-1905) and to then compare it to both the 1970s and current coastal position (updated by LiDAR datasets where available) in order to estimate past erosion/accretion rates.

Using the historic coastal change rates the coastline position can then be projected into the future, albeit mediated by a Coastal Erosion Susceptibility Model (CESM) whose function is to limit erosion to areas where the hinterland is susceptible to erosion.

MS Maps NMPI shows 5 layers:

  • Dynamic Coast  - Scotland MHWS Modern
  • Dynamic Coast  - Scotland MHWS 1970
  • Dynamic Coast  - Scotland Change 1970 modern
  • Dynamic Coast  - Future Look 2050 Public
  • Dynamic Coast  - Future Look 2100 Public

Links to the full NCCA reports and data sources can be found in the tabs below. There are further data layers available in a Web Map Service feed that users can add to MS Maps NMPi. The url is listed on the MSI Maps> Map Services page.

The layers are best viewed at 1:433,434 or better as they are slow to draw.

Links to Scotland's Marine Atlas: 
Data originators: 
This information page is part of the theme: 
Dynamic Coast - Scotland MHWS Modern (c) SNH