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Tag: TCarta Marine

  • TCarta unveils Global Satellite Derived Bathymetry product line

    Image: TCarta
    Image: TCarta

    TCarta Marine has introduced a Global Satellite Derived Bathymetry (G-SDB) product line developed with a new seafloor depth measurement technique that leverages Machine Learning and NASA ICESat-2 laser data. According to the company, this G-SDB offering covers the entire Red Sea, with additional sets rolled out through the end of this year.

    The commercial TCarta G-SDB data sets and the seafloor measurement workflow that produces them were made possible through a Small Business Innovation Research Grant from the National Science Foundation (NSF).

    According to TCarta, G-SDB data sets contain bathymetric measurements to depths of more than 30 meters, depending on water clarity, at 10-meter resolution. The depth values for every 10-meter pixel are the combined result of numerous measurements, resulting in accuracy within 10% of depth or less, and providing a seamless water bottom surface map. G-SDB will be available globally for all oceans and seas, as well as large freshwater lakes where water conditions permit.

    “The new satellite-derived bathymetry technology extracts seafloor measurements by integrating multiple SDB algorithms and sensor types at scale and over broad geographic areas with a degree of confidence in data accuracy not previously possible,” said TCarta president Kyle Goodrich.

    TCarta launched Project Trident with NSF funding in 2018 with the goal of refining traditional satellite-derived bathymetry technology to extend its application into areas where it had not typically been successful, usually due to the turbidity or clarity of the water column. TCarta developed the new method using machine learning to iteratively evaluate Sentinel 2A/B multispectral satellite images, and even individual pixels within images, to select the sharpest and clearest ones for application of SDB extraction.

    “Thanks to the power and speed of cloud computing, we run the extraction algorithm repeatedly and on multiple satellite images acquired over the same geographic area on different dates. This dramatically increased the accuracy confidence in each depth measurement and minimizes data gaps,” Goodrich said.

    To further enhance the accuracy of the SDB measurements, TCarta developed an artificial intelligence-based technique for leveraging ICESat-2 data to train the SDB algorithm and validate results. Designed for polar ice elevation and tree canopy measurements, the ICESat-2 satellite carries a laser that captures remarkably accurate bathymetric data, the company said.

    TCarta Marine is a global provider of hydrospatial solutions. The TCarta product lines include high-resolution satellite-derived water depth and seafloor map products as well as 90- and 30-meter GIS-ready bathymetric data aggregated from numerous information sources.

  • TCarta Marine offers Gulf of Mexico basemap, bathymetry data

    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 subscription basis.

    LandingImages-TCarta-WThe 2-meter Bathymetry product is an off-the-shelf shallow water, coastal zone bathymetric dataset derived from high-resolution satellite imagery.

    Both products will be demonstrated by TCarta Marine in booth #403 at the Esri Petroleum Conference being held April 12-13, in Houston’s George R. Brown Convention Center.

    “The Marine Basemap service covering the entire Gulf of Mexico is available now,” said TCarta Marine President Kyle Goodrich. “Datasets for additional marine regions around the world will be added this year with the North Sea available this summer.”

    The streaming data service was developed with the oil and gas industry in mind, allowing customers to choose from two subscription tiers for the Gulf of Mexico. The GoM Marine Basemap is a tiled map service intended to provide users with an informative and aesthetically pleasing backdrop streamed into the desktop GIS environment. The Basemap is a scale-dependent display of a stylized bathymetry image with labeled contour lines and marine feature names

    The Marine Basemap Plus incorporates best-available resolution bathymetry grids, contour lines and other valuable data for modeling, analysis and derivative work. The entire gulf is covered at 90-meter resolution while many areas have been mapped at 30-meters, with higher resolution data to be added.

    “Marine Basemap Plus will appeal to oil and gas companies of all sizes because the streaming data is extremely affordable and updated constantly through the subscription process,” said Goodrich. “The GIS manager at an energy company will never have to worry about obtaining the most recent or highest quality offshore data because it will be downloaded automatically.”

    The Gulf of Mexico Marine Basemap Plus also includes information enhanced from authoritative sources such as the National Oceanic and Atmospheric Association (NOAA), National Ocean Service, Department of Energy and Bureau of Energy Management. The five main value-added layers relate to:

    • Navigation – Seafloor elevation data including dredged channels and shipping lanes
    • Geology – Natural features and seismic anomalies
    • Lease Blocks – Active leases, well, and pipeline information
    • Habitat – Reefs, grasses, corals and other marine ecosystems
    • Shoreline – Vector derived from lidar and satellite imagery

    Also making its U.S. debut at the Esri Petroleum show will be the 2-meter Satellite Derived Bathymetry offering developed by TCarta Marine, DHI and DigitalGlobe with funding from the European Space Agency. This is an off-the-shelf version of a custom product introduced in 2011 by Proteus Geo, which merged with TCarta Marine this year. It will eventually be a global marine dataset.

    To create this product, accurate seafloor depths are extracted by DHI using a primary production technique before TCarta Marine ensures that all data undergoes a rigorous quality control procedure. All depths are derived from eight-band multispectral imagery captured by DigitalGlobe’s high-resolution WorldView satellites, the commercial imaging constellation.

    “This process derives bathymetric measurements at 2-meter resolution to an average depth of 20 meters in the near-shore coastal zone, where environmental conditions allow,” Goodrich said. “The 2-meter product will be sold by the square kilometer, which means clients only pay for the data they need, making this a very cost-effective product.”

    The off-the-shelf 2-meter product covering the Arabian Gulf is available for purchase now, with the Red Sea planned for completion by later this year. By mid-2017, TCarta Marine will make the 2-meter products available for instant searching, purchasing and downloading through an online portal called Bathymetrics.

    The Gulf of Mexico Marine Basemap Plus and 2-meter Bathymetric products can be ordered through [email protected].