GPS World

Tag: bathymetry

  • TCarta Marine and Proteus Geo merge to provide marine mapping solutions

    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 a wider and more sophisticated range of products than any other supplier worldwide,” said TCarta Marine CEO David Critchley. “TCarta Marine is now a one-stop shop for bathymetric and marine data.”

    TCarta-ProteusGeo-bathymetry-O
    Image: Proteus Geo

    TCarta Marine will continue offering all existing product lines from the two companies, as well as new products and services under development. Primary markets served will be engineering, oil and gas, government and defense with expansion planned into the insurance, 3D modeling and aquaculture industries.

    “Our goal is to make it easier for the marine community to obtain and use quality mapping data,” said TCarta Marine President Kyle Goodrich. “To support every phase of offshore projects, we now offer lower resolution bathymetry for regional planning as well as high-resolution, highly accurate seafloor modeling for precise coastal engineering activities. Additionally, we offer a range of global and regional marine basemaps.”

    In recent years, TCarta Marine and Proteus Geo collaborated on many projects and had numerous clients in common due to the complementary nature of their product lines.

    David Critchley established Proteus Geo in the United Kingdom in 2011 to leverage a new technology that derives high-accuracy seafloor survey and seabed classification information from multispectral satellite imagery. Operating at a fraction of the cost of traditional ship and airborne bathymetric technologies, the Proteus methodology has been deployed extensively in energy exploration, infrastructure engineering and environmental applications in shallow-water coastal zones.

    “The two-meter satellite-derived bathymetric data can be derived to depths of 35 meters depending on water clarity and every depth has an uncertainty value assigned,” said Critchley.

    TCarta Marine was started in 2008 by Kyle Goodrich to fill an enormous gap in quality bathymetric data from the littoral zone out to the base of the continental shelf, distance often spanning hundreds of kilometers. The firm developed proprietary techniques for aggregating seafloor depth data from numerous medium- to coarse-resolution sources, including navigation charts, ship tracklines, and boat surveys. TCarta Marine has built an off-the-shelf line of 90- and 30-meter GIS-ready products covering the Earth’s most important marine areas.

    “Our bathymetric products are available via annual subscription for streaming directly into our clients’ GIS and mapping applications,” said Goodrich. “Oil, gas and renewable energy companies have become major users of TCarta Marine products.”

    As president of the new TCarta Marine, Goodrich will focus on developing additional products and innovative methods for delivering them. The global company seeks to expand its foothold in traditional marine markets and cultivate new applications for seafloor data. Critchley, as CEO of TCarta Marine, will be responsible for business development in new geographic regions of the world.

    In the near term, TCarta Marine and Proteus Geo customers can look forward to purchasing the existing 90-, 30- and 2-meter resolution product lines online through a new web portal, now under development. Information can be found and orders placed now through the new unified TCarta Marine website at www.TCartaMarine.com.

    Proteus FZC, an affiliated company of Proteus Geo based in the United Arab Emirates, will remain a stand-alone company offering terrestrial geospatial and marine consulting services in the Middle East.

  • TCarta Marine and Proteus Geo merge to provide marine mapping solutions

    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 a wider and more sophisticated range of products than any other supplier worldwide,” said TCarta Marine CEO David Critchley. “TCarta Marine is now a one-stop shop for bathymetric and marine data.”

    TCarta-ProteusGeo-bathymetry-O
    Image: Proteus Geo

    TCarta Marine will continue offering all existing product lines from the two companies, as well as new products and services under development. Primary markets served will be engineering, oil and gas, government and defense with expansion planned into the insurance, 3D modeling and aquaculture industries.

    “Our goal is to make it easier for the marine community to obtain and use quality mapping data,” said TCarta Marine President Kyle Goodrich. “To support every phase of offshore projects, we now offer lower resolution bathymetry for regional planning as well as high-resolution, highly accurate seafloor modeling for precise coastal engineering activities. Additionally, we offer a range of global and regional marine basemaps.”

    In recent years, TCarta Marine and Proteus Geo collaborated on many projects and had numerous clients in common due to the complementary nature of their product lines.

    David Critchley established Proteus Geo in the United Kingdom in 2011 to leverage a new technology that derives high-accuracy seafloor survey and seabed classification information from multispectral satellite imagery. Operating at a fraction of the cost of traditional ship and airborne bathymetric technologies, the Proteus methodology has been deployed extensively in energy exploration, infrastructure engineering and environmental applications in shallow-water coastal zones.

    “The two-meter satellite-derived bathymetric data can be derived to depths of 35 meters depending on water clarity and every depth has an uncertainty value assigned,” said Critchley.

    TCarta Marine was started in 2008 by Kyle Goodrich to fill an enormous gap in quality bathymetric data from the littoral zone out to the base of the continental shelf, distance often spanning hundreds of kilometers. The firm developed proprietary techniques for aggregating seafloor depth data from numerous medium- to coarse-resolution sources, including navigation charts, ship tracklines, and boat surveys. TCarta Marine has built an off-the-shelf line of 90- and 30-meter GIS-ready products covering the Earth’s most important marine areas.

    “Our bathymetric products are available via annual subscription for streaming directly into our clients’ GIS and mapping applications,” said Goodrich. “Oil, gas and renewable energy companies have become major users of TCarta Marine products.”

    As president of the new TCarta Marine, Goodrich will focus on developing additional products and innovative methods for delivering them. The global company seeks to expand its foothold in traditional marine markets and cultivate new applications for seafloor data. Critchley, as CEO of TCarta Marine, will be responsible for business development in new geographic regions of the world.

    In the near term, TCarta Marine and Proteus Geo customers can look forward to purchasing the existing 90-, 30- and 2-meter resolution product lines online through a new web portal, now under development. Information can be found and orders placed now through the new unified TCarta Marine website at www.TCartaMarine.com.

    Proteus FZC, an affiliated company of Proteus Geo based in the United Arab Emirates, will remain a stand-alone company offering terrestrial geospatial and marine consulting services in the Middle East.

  • Fugro’s airborne tech surveying after New Zealand earthquake

    Fugro’s airborne tech surveying after New Zealand earthquake

    Fugro’s laser airborne depth sounder (LADS) technology is being deployed in New Zealand to assist in relief efforts following the damaging 7.9 magnitude earthquake near Christchurch on Nov. 14.

    At the request of the New Zealand Government, the Royal Australian Navy LADS flight is to conduct a rapid hydrographic survey of the seafloor in the coastal margins of the north east coast of the South Island.

    “We will fly over the area and collect hydrographic survey data, which will reveal what has happened below the waterline, and identify any shifts in the ocean floor which mariners need to be aware of,” explained Flight Lieutenant Commander Susanna Hung, who is serving as the mission’s commanding officer.

    The navy’s airborne lidar bathymetry (ALB) system has been developed by Fugro for safe, high speed and cost effective surveys of shallow coastal areas. Under a long-term contract to the RAN, Fugro provides the LADS technology, a de Havilland Dash 8-202 aircraft and support services.

    Fugro's LADS technology is being deployed following the Nov. 14 New Zealand earthquake.
    Fugro’s LADS technology is being deployed following the Nov. 14 New Zealand earthquake.

    The airborne survey equipment is operated by navy personnel from the main cabin of the aircraft to rapidly collect high resolution data of the seafloor. Fugro’s system incorporates sophisticated sensors that utilize a high-powered laser, innovative scanner and receiver optics technology.

    The survey tool complements traditional hydrographic survey methods (such as hull-mounted multibeam echo sounders) to support nautical charting and coastal zone management applications in the nearshore/shallow water environment. The speed of deployment and safe operating capability make it an ideal solution to confirm the safety of navigation and locate new hazards such as is now required in the earthquake affected area.

    “The New Zealand deployment by RAN LADS is an excellent example of how our innovative technology can assist in the safety of navigation and management of the marine environment,” said Paul Seaton, Fugro’s regional business development manager.

  • CHC launches high-end GNSS receiver for science, surveying

    CHC has launched its new N72 GNSS series, a high-end sensor designed for GNSS applications including offshore surveys and machine control, national geodetic networks, crustal deformation monitoring and bathymetry

    CHC N72 GNSS series.
    CHC N72 GNSS series.

    The N72 GNSS series is designed to offer all necessary technical features, making it one of the most complete and reliable GNSS receivers for scientific and surveying industries professionals.

    “To meet the market requirements from geodetic survey and demanding applications such as CORS, on-board machine control and disaster monitoring, CHC research and development has designed one of the most feature-rich GNSS receivers available on the market. The N72 GNSS went through extensive validation and stringent quality process to achieve high performance and reliability,” said George Zhao, CEO of CHC. “This new-generation GNSS sensor reinforces our commitment to provide complete solutions to GNSS professionals.”

    N72 features top level specifications:

    • Embedded battery supporting 15 working hours without external power supply
    • 32GB internal memory integrated and 1TB+ external memory supported
    • 8 threads of logging with circulating storage and FTP push functions
    • Wi-Fi, LAN, Bluetooth and serial ports for data communications
    • LCD display and function buttons for direct configuration

    N72-CORS-CHC-W

  • USGS Offers New Series of California Offshore Maps

    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.
    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 other state and federal partners. The maps are designed to be used by a large stakeholder community and the public to manage and understand California’s vast and valuable marine resources.

    “OPC is proud to be a partner in this interagency effort,” said California’s Secretary for Natural Resources and OPC Chair John Laird. “These maps are critical to the state’s innovative approach to coastal resource management. USGS’s products form the foundation for assessing the performance of our Marine Protected Area network and preparing for climate change impacts such as sea-level rise.”

    “NOAA is pleased to be partnering in this integrated ocean and coastal mapping project. By working with partners from across federal, state, academic, and private sectors, we are able to combine data resources and maximize our efficiency in applying a ‘map once, use many times’ approach that benefits all,” said Rear Admiral Gerd F. Glang, director NOAA’s office of coast survey.

    The program was initiated seven years ago with the goal of comprehensively surveying and mapping all of California’s state waters. The vision was tremendously ambitious — comparable mapping on this scale has not been attempted anywhere else in the world, the USGS said. Each of the three publications includes 10 map sheets, a pamphlet and a digital data catalog.

    The maps and mapping data have a large range of applications. They provide:

    • a foundation for assessing marine protected areas and habitats;
    • baselines for monitoring coastal change and sea-level-rise impacts;
    • critical input data for modeling and mitigation of coastal flooding;
    • a framework for understanding coastal erosion and developing regional sediment management plans;
    • contributions to earthquake and tsunami hazard assessments;
    • more accurate maps for safer navigation;
    • and essential information for planning, siting, or removing offshore infrastructure.

    The new “Offshore of San Francisco” maps document the complex submarine environments along the inlet to San Francisco Bay formed by strong tidal currents, including spectacular sand waves, a deep scour pool beneath the Golden Gate, and the dynamic offshore San Francisco mouth bar and “Potato Patch” shoal.

    Sediment distribution maps reveal only a thin sediment cover offshore of the Ocean Beach (San Francisco) erosional hotspot (a pattern extending south to San Gregorio), indicating that today’s present coastal erosion will be a continuing problem, likely to be exacerbated by continuing sea-level rise.

    Geologic maps incorporating subsurface data document the location and geometry of the San Andreas, San Gregorio and Point Reyes fault systems, and show how their interactions led to uplift of Point Reyes and development of a deep sediment-filled basin.

    The Drakes Bay and Vicinity, and Offshore of Tomales Point maps reveal the diverse and complex range of seafloor habitats typical of the California coast, ranging from the rugged granitic bedrock along the high-energy west coast of Point Reyes, to smooth sand and mud in the more protected Drakes Bay environment that includes the Point Reyes State Marine Reserve.

    “There is a ‘WOW!’ factor to the new high-resolution datasets and maps,” said Sam Johnson, the USGS project lead. “They’re allowing scientists to pose new questions and are having a significant role in stimulating research.  We’re also seeing a positive impact on public education and awareness.”

    To date, 12 map sets and catalogs have been published. Ten additional map sets are now being formatted for publication, which will complete coverage in the Santa Barbara Channel (Oxnard to Gaviota) and from Marina northward to beyond the Russian River.

    The maps are created through the collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data.

    The California Seafloor and Coastal Mapping Program is a collaborative effort supported by the USGS, the California Ocean Protection Council, NOAA, California State University at Monterey Bay, Moss Landing Marine Laboratories, and other academic, government, and industry partners.

    Map of offshore sediment thickness in State Waters between Drakes Bay and Salt Point, north of the Russian River. The thickest sediment in the region occurs offshore of the Russian River, and in a large bar along the south flank of Point Reyes Head. There is a relative lack of offshore sediment between Bodega Head and Point Reyes, where the shelf is characterized by abundant rocky habitat and much of the coastal sediment is trapped in large onshore dune fields.
    Map of offshore sediment thickness in State Waters between Drakes Bay and Salt Point, north of the Russian River. The thickest sediment in the region occurs offshore of the Russian River, and in a large bar along the south flank of Point Reyes Head. There is a relative lack of offshore sediment between Bodega Head and Point Reyes, where the shelf is characterized by abundant rocky habitat and much of the coastal sediment is trapped in large onshore dune fields.
    Perspective view looking to the southeast over entrance to San Francisco Bay. Golden Gate Bridge is to left (east) of this view. The large sand-wave field lies within Golden Gate channel, and formed from sediment transported out of the Bay by strong tidal currents. Profile A–A’ shows that the larger bedforms can reach heights of over 7 m and are asymmetrical with steeper sides towards the open coast. A smaller field of sand waves to south near Baker Beach shows the opposite symmetry (steep sides toward the Bay) indicating that the strongest tidal currents in that local area are directed eastward.
    Perspective view looking to the southeast over entrance to San Francisco Bay. Golden Gate Bridge is to left (east) of this view. The large sand-wave field lies within Golden Gate channel, and formed from sediment transported out of the Bay by strong tidal currents. Profile A–A’ shows that the larger bedforms can reach heights of over 7 m and are asymmetrical with steeper sides towards the open coast. A smaller field of sand waves to south near Baker Beach shows the opposite symmetry (steep sides toward the Bay) indicating that the strongest tidal currents in that local area are directed eastward.
    “Seafloor character” map of the San Francisco Region. This is a type of habitat map that classifies the seafloor based on surface hardness and roughness. Such maps are used in various types of ecosystem assessments and seafloor zoning, such as delineation or monitoring of marine protected areas.
    “Seafloor character” map of the San Francisco Region. This is a type of habitat map that classifies the seafloor based on surface hardness and roughness. Such maps are used in various types of ecosystem assessments and seafloor zoning, such as delineation or monitoring of marine protected areas.
    Bathymetry bounding Tomales Point. Rugged and massive granite outcrops extend offshore from Tomales Point to water depths of as much as 60 meters. Offshore sedimentary rock outcrops (lower left part of image) form distinctive “ribs” on the seafloor and have a notably different appearance. There is minimal sediment on this part of the California shelf because the watersheds draining the west flank of Tomales Point are very small and because Tomales Point and Tomales Bay block sediment transport from the north. Rocky-shelf outcrops and rubble are excellent habitats for rockfish and lingcod, recreationally and commercially important species. Tomales Bay, approximately 20-km long and 1- to 2-km wide, formed along a submerged portion of the San Andreas Fault (very shallow water depths preclude collection of high-resolution bathymetric data at the mouth of Tomales Bay).
    Bathymetry bounding Tomales Point. Rugged and massive granite outcrops extend offshore from Tomales Point to water depths of as much as 60 meters. Offshore sedimentary rock outcrops (lower left part of image) form distinctive “ribs” on the seafloor and have a notably different appearance. There is minimal sediment on this part of the California shelf because the watersheds draining the west flank of Tomales Point are very small and because Tomales Point and Tomales Bay block sediment transport from the north. Rocky-shelf outcrops and rubble are excellent habitats for rockfish and lingcod, recreationally and commercially important species. Tomales Bay, approximately 20-km long and 1- to 2-km wide, formed along a submerged portion of the San Andreas Fault (very shallow water depths preclude collection of high-resolution bathymetric data at the mouth of Tomales Bay).

    Maps: USGS