OceanWise Launches Seabed Digital Elevation Model (DEM)

Independent marine data management and publishing specialist, OceanWise Ltd, has established off-the-shelf marine mapping datasets that meet the needs of the most demanding applications.  These datasets include Raster Charts and the highly acclaimed vector dataset, Marine Themes.  Both are available on-line for immediate download from established digital mapping providers, emapsite.com and FIND Mapping.  Offering exceptional value, OceanWise mapping and data management products are being used widely across central and local Government, NGOs and the commercial sector.

To accompany the above datasets, OceanWise has created Marine Themes DEM, a seabed 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. 

Figure – OceanWise Marine Themes Digital Elevation Model in GIS

OceanWise Marine Themes DEM offers the following key advantages:

1. Survey data modelled to create an accurate and seamless surface of the seabed
2. Coverage data describing the source data used to create the DEM in any given area
3. Advanced de-confliction methodology improving continuity between adjacent surveys 
4. Height and slope attributed coastline increasing accuracy within the coastal zone
5. Improved interpolation algorithm providing more natural shape (i.e. no flat triangles)
6. Ongoing maintenance schedule to ensure the latest survey data is incorporated
7. Already exceptional value, DEM image files in GeoTIFF (or ECW) format deliver even greater cost savings for many applications including Web GIS.

In addition to the DEM, OceanWise distributors can provide access to the actual survey data (i.e. soundings) used in the DEM creation.  A GIS compatible data file showing all available surveys is available on request. 

Please contact OceanWise on-line distributors – FIND Mapping and emapsite.com – for further details and a quotation.

About OceanWise

OceanWise Ltd is an independent company specialising in all aspects of marine environmental data acquisition, data and knowledge management and GIS.   OceanWise personnel have been pioneering the development of marine data products for over 12 years, first at Metoc then at SeaZone, and at the UK Hydrographic Office.  This experience has culminated in the design and development of the advanced Marine Themes vector and modelled datasets.  In addition to Digital Marine Mapping, OceanWise offers: 

• Environmental Data Management and Publishing (Ocean Database and Port-Log.net)
• GIS and Marine Data Acquisition, Management and Dissemination Advice and Training
• Sector Specific Productivity Tools (Maritime Toolbar and Workflow Extensions)

For more information on how OceanWise can improve your environmental and spatial data management capacity and capabilities, please contact Mr John Pepper, Marketing Director, on john.pepper@oceanwise.eu or visit the OceanWise website at www.oceanwise.eu.

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