Bathymetry dataset collected using multibeam echosounder, to IHO Order 1a standards. Depths reduced to local chart datum using observed tide.

Slope map showing percentage slope in 10m Pixels, based on Digital Elevation Model from contour data. The data collected in this folder were based on the 1989 Ordnance Survey maps.

Contour lines at 50m Intervals with a full coverage for the island.

Point file of depths shown on SH-SAERI-224 (UKHO Marine Hydrographic Charts 1771-1 and 1771-2)

As part of a Map of the ocean bed including depths and wrecks. Data will be collected from various sources including the OS maps. Covers James Bay area as per 1:10000 scale...

Contour lines at 10m Intervals with a full coverage for the island.

DSM, hillshade, slope and aspect geotiffs created by Environment Systems for use in modelling of habitat data for DPLUS052, using 2014 Airbus DEM

Triangular irregular network (TIN) based on 10 m contours

2014 Digital Elevation Model for St Helena (Airbus Pleaides). Original projection was EPSG4326 but a reprojected version EPSG32730 also exists. Original available as .asc. End...

Bathymetry data for the whole of the South Atlantics Ocean and associated source identifier data: The GEBCO_2014 Grid is a continuous terrain model for ocean and land with a...