Lidar Bathymetry on the Alaskan North Slope
In June 2014, the Bureau of Economic Geology, a research unit at the University of Texas at Austin, was contracted to conduct an airborne bathymetric Lidar survey on the Alaskan...
In June 2014, the Bureau of Economic Geology, a research unit at the University of Texas at Austin, was contracted to conduct an airborne bathymetric Lidar survey on the Alaskan...
My earlier articles on the alignment of motion reference units (MRU) with the ships reference frame (SRF) did not cover the calibration of GNSS augmented heading systems. Although the alignment...
Unique System FZE (UAE), a division of Unique Maritime Group (UMG), has recently supported a hydrographic project that included the installation of Kongsberg’s EM 2040 multibeam echosounder units for Bayanat...
For operations in complex underwater environments, bio-inspired robots offer manoeuvrability, stealth and autonomy. They integrate propulsion and control systems into one multi-purpose undulatory propeller. By generating large counteracting forces, undulating...
A new Kongsberg EM2040D has been installed on MMT’s long-term charted multipurpose support vessel Stril Explorer. The device has a 0.4 x 0.7 degree dual-head multibeam system and it combines...
JASCO Applied Sciences has commenced an AMAR product demonstration and data gathering mission on the Venus Ocean Observatory. Two of JASCO’s AMARs have been deployed at two different locations on...
At the beginning of the 2013 pipeline inspection season, client requirements led to Fugro Survey Limited needing to move fast to acquire a new remotely operated towed vehicle (ROTV). MacArtney...
In the last few decades, substantial efforts have been made to improve and facilitate the way hydrographic data is obtained. One technology is the EdgeTech 4600, an interferometric phase difference...
The evolution of multi-beam echo sounders (MBES) is leading to systems with enhanced capabilities in their traditional markets, but also provides features to allow the expansion of their use into...
High-resolution multi-beam echo sounder (MBES) surveys should not be conducted where the uncertainty of the horizontal positioning system is larger than the nadir footprint of the MBES at the mean...
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