Tag: DHI

  • Bathymetrics Data Portal delivers quality water-depth data online

    The Bathymetrics Data Portal allows users to search, purchase and automatically download water-depth information directly from an online store to their computer.

    The Bathymetrics Data Portal is a combined offering by DHI, experts in water environments; TCarta, a global provider of marine geospatial products; and powered by DigitalGlobe, provider of high-resolution satellite imagery.

    Example of 2m Bathymetry data available through The Bathymetrics Data Portal. (Image: © DHI, TCarta, DigitalGlobe)
    Example of 2m Bathymetry data available through The Bathymetrics Data Portal. (Image: © DHI, TCarta, DigitalGlobe)

    The dedicated commercial bathymetry portal offers continuously expanding 2m Bathymetry data in shallow water areas and a global database of interpolated 90m bathymetry. The portal allows users to search for data in their area of interest and purchase what they need. Data is priced by the square kilometer; the customer pays online with credit card and can download the data shortly after.

    “We are very excited about this launch, as we have made direct access to off-the-shelf bathymetry data very easy and intuitive,” said DHI COO, Jacob Høst-Madsen. “The shop marks an important milestone in our continued quest to develop and offer high quality, affordable bathymetry data”

    Bathymetric products are used extensively by organizations involved in energy infrastructure development, port construction, environmental monitoring, aquaculture planning and hydrodynamic modeling.

    “The per-kilometer pricing model puts high-quality bathymetric data within easy reach of organizations of any size in all industries,” said TCarta CEO David Critchley. “One-person engineering shops, academic entities and other organizations with limited budgets can now engage in complex offshore projects.”

    The portal is constantly being updated with new and improved data, providing users with the best available bathymetric information around the world.

  • DHI Uses Airbus Satellite Images to Map Denmark Flooding

    Water management company DHI used satellites to map Jan. 11-13 floods in Denmark.

    On the weekend of Jan. 9-11, two storms passed over Denmark. During and after the storm flood warnings were issued in different areas of the country. To monitor and map the spatial extent of the flooding DHI GRAS asked Airbus Defence and Space to acquire TerraSAR-X satellite images over the areas. DHI then analyzed and mapped the flooded area.

    The main advantage of using radar satellites like TerraSAR-X is the ability to acquire images independent of weather and light conditions, DHI said. It is possible to get an image of the actual conditions on the ground even during harsh winds (up to 35 to 40 meters per second in this case), massive clouds and rain, and during the night.

    The illustration below shows parts of the flooded area around Limfjorden in Northern Jutland, Denmark. On the background radar satellite image the water is black while land area appears in white and grey tones. The light blue overlay indicates flooded areas.

    The images were acquired over various parts of Denmark. By preparing and reacting to future and similar early warnings of flooding and storm events, it is possible to plan for new images to be acquired during the maximum extent of the water level.

    Egon-Oversvommelse-Limfjorden-Resized