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Producing maps of the seafloor has always been a unique challenge to humankind. Today, multibeam sonar is the marine technology used by hydrographers to generate precise seafloor mapping data, and when this is precisely georeferenced using the Applanix POS MV™ (a GPS/Inertial navigation system specifically designed for marine use), the most advanced and accurate solution for mapping the seafloor is achieved. The POS MV (Marine Vehicles) family of products, including the POS MV Elite™ (for all marine vessels) and the POS MV WaveMaster (for smaller survey launches), represents the state of the art in precise, real time, dynamic Positioning and Orientation technology. POS MV is a user friendly, turnkey solution that fully integrates Inertial and GPS sensors to provide an accurate reference for Attitude, Heading, Heave, Position, and Velocity, and is uniquely suited to the requirements of marine motion sensing and Hydrographic surveys. See our case studies. |
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New Method for Marine Hydrographic Surveying Yields Significant Gains |
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This case study describes the
Post Processed Virtual Reference Station (PPVRS) technique for multibeam Marine
Hydrography. This technique uses GPS
network stations to determine atmospheric biases at the rover positions and
tightly integrates GPS with inertial data to provide a continuous,
high-precision navigation solution with baselines of up to 80 km.
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Fugro Pelagos is a world leader in providing reliable and innovative solutions to the offshore oil and gas industry, which include a variety of tasks from high-precision rig positioning for oil exploration, to delivering preliminary seismic survey data, and pipeline inspections. The company operates in all the major offshore exploration areas with over 30 locations worldwide. |
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Seafloor Mapping
