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Airborne and satellite data acquisition have made further advances possible in visualisation of underwater surfaces: high-resolution aerial photography and orthoimagery is a powerful tool for mapping shallow clear waters on continental shelves, and airborne laser bathymetry, using reflected light pulses, is also very effective in those ...
The bathymetric data have been created and visualised with SDB-Online webapp. Satellite-Derived Bathymetry (SDB) is the calculation of shallow water depth from active or passive satellite sensors. The technology requires a sensor (hardware) and relevant algorithms (software) to derive bathymetric measurements from the data recorded by the sensor.
Blue-green light of 532 nm produced by frequency doubled solid-state IR laser output is the standard for airborne bathymetry. This light can penetrate water but pulse strength attenuates exponentially with distance traveled through the water. [50]
Airborne laser. An airborne laser (ABL) is a laser system operated from a flying platform, as in the: Soviet/Russian Beriev A-60 (1981, active) American Boeing YAL-1 (2002-2012, scrapped) An American modified NKC-135A unit (1975-1984, in storage.)
The Laser Airborne Depth Sounder (LADS) is an airborne lidar bathymetry system used for hydrographic surveying by the Australian Hydrographic Service (AHS). The system uses the difference between the sea surface and the sea floor as calculated from the aircraft's altitude to generate hydrographic data.
Blue-green light of 532 nm produced by frequency doubled solid-state IR laser output is the standard for airborne bathymetry. This light can penetrate water but pulse strength attenuates exponentially with distance traveled through the water. [11]
The company is active in the markets of airborne laser terrain mapping systems, airborne laser bathymetry, industrial and 3D imaging, and space lidar solutions.. Optech's founder is Allan Carswell, who in 2006 received the John H. Chapman Award of Excellence by the Canadian Space Agency.
Scrapped. The Boeing YAL-1 airborne laser testbed was a modified Boeing 747-400F with a megawatt-class chemical oxygen iodine laser (COIL) mounted inside. It was primarily designed to test its feasibility as a missile defense system to destroy tactical ballistic missiles (TBMs) while in boost phase. The aircraft was designated YAL-1A in 2004 by ...