OceanWise Ltd has created Marine Themes DEM, a sea bed digital elevation model (DEM) at 1 and 6 arc seconds utilising single and multi-beam hydrographic survey data from the UK Hydrographic Office and other agencies. Data derived from Electronic Navigational Charts (ENCs) is used to provide additional coverage.

OceanWise Marine Themes DEM offers the following key advantages:1) Survey data modelled to create an accurate and seamless surface of the sea bed2) Advanced de-confliction methodology improving continuity between surveys 3) Height and slope attributed coastline increasing accuracy within the coastal zone4) Improved interpolation algorithm providing more natural shape (no flat triangles) 5) Ongoing maintenance schedule to ensure the latest survey data is incorporated6) Already exceptional value, DEM image files in GeoTIFF (or ECW) format provide even greater cost savings for many applications.



Image (C) Crown Copyright, 2013. All Rights reserved. Licence no. EK001. Not to be used for navigation.