TAG: bathymetry

Bathymetrics Data Portal delivers quality water-depth data online

September 19, 2017By
Example of 2m Bathymetry data available through The Bathymetrics Data Portal. (Image: © DHI, TCarta, DigitalGlobe)

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. The dedicated commercial bathymetry portal offers continuously expanding 2m Bathymetry... read more

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TCarta Marine offers Gulf of Mexico basemap, bathymetry data

April 4, 2017By
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TCarta Marine, a global provider of marine geospatial products, will unveil two new offshore data offerings at the 2017 Esri Petroleum GIS Conference in Houston — the Gulf of Mexico Marine Basemap Plus service and 2-meter Satellite Derived Bathymetry dataset. The Marine Basemap Plus is a streaming data service that delivers up-to-date value-added marine layers directly into Esri ArcGIS on a... read more

TCarta Marine and Proteus Geo merge to provide marine mapping solutions

January 31, 2017By
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TCarta Marine LLC of Denver, Colorado, has merged with Proteus Geo of Oxford, England, to create a global mapping company that provides bathymetric and marine data sets from the shallow coastal zone out to the continental shelf. The new company is called TCarta Marine and will maintain offices in Denver and Oxford. “By merging, we believe the merged company provides... read more

USGS Offers New Series of California Offshore Maps

May 22, 2015By
Map of sediment thickness in state waters offshore of San Francisco. About 21,000 years ago, sea level in this area was about 125 m lower and the shelf offshore San Francisco was an emergent land surface. At that time, the Sacramento River drained through the Golden Gate and eroded a valley ("the San Francisco paleovalley”) that was filled with sediment during subsequent sea-level rise. The thickest young sediment in the region occurs in the “San Andreas graben,” a basin that formed by crustal down dropping along the offshore section of the San Andreas fault. There is very little sediment on the shelf offshore of southern Ocean Beach (a pattern that extends south to Pescadero), a factor important for understanding and forecasting coastal erosion in this area.

Three new sets of maps detail the offshore bathymetry, habitats, geology and submarine environment of the seafloor off the coast of San Francisco, Drakes Bay and Tomales Point. Critical for resource managers, the maps are part of the California Seafloor and Coastal Mapping Program, a series of maps published by the U.S. Geological Survey with support from the California Ocean Protection Council, NOAA and 15... read more