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A seafloor map captured by NASA. Bathymetry (/ b ə ˈ θ ɪ m ə t r i /; from Ancient Greek βαθύς (bathús) 'deep' and μέτρον (métron) 'measure') [1] [2] is the study of underwater depth of ocean floors (seabed topography), lake floors, or river floors.
GEBCO is the only intergovernmental body with a mandate to map the whole ocean floor. At the beginning of the project, only 6 per cent of the world's ocean bottom had been surveyed to today's standards; as of June 2022, the project had recorded 23.4 per cent mapped. About 14,500,000 square kilometres (5,600,000 sq mi) of new bathymetric data ...
The satellite will fly two radar antennas at either end of a 10 m (33 ft) mast, allowing it to measure the elevation of the surface across a 120 km (75 mi) wide swath. The new radar system is smaller than, but similar to, the one that flew on NASA's Shuttle Radar Topography Mission (SRTM), which made high-resolution measurements of Earth's land ...
The decommissioning of the satellite took some days; the final decommissioning activities on the satellite ended 9 October 2019, with the satellite rendered fully inactive. [15] Because Jason-2 is orbiting at an altitude of over 1,300 km (810 mi), NASA estimates that it will remain in orbit for at least 500 to 1,000 years after decommissioning.
TOPEX/Poseidon was a joint satellite altimeter mission between NASA, the U.S. space agency; and CNES, the French space agency, to map ocean surface topography. Launched on August 10, 1992, it was the first major oceanographic research satellite. TOPEX/Poseidon helped revolutionize oceanography by providing data previously impossible to obtain.
After less than one month in operation, Aquarius produced the first map showing the varying degrees of salinity across the ocean's surface produced by NASA. [8] The first salinity maps from space were provided by the European Space Agency satellite SMOS (Soil Moisture and Ocean Salinity) that was launched in November 2009. [9] Previous ...
DEPTHX created the first map of the bottom of Zacatón, which has a depth of over 1,000 feet [300 m]. [9] DEPTHX was the first robotic system of any kind to implement three-dimensional simultaneous localization and mapping (SLAM).
By living in the Aquarius habitat and working at the same depth on the ocean floor, NEEMO crews are able to remain underwater for the duration of their mission. For NASA, the Aquarius habitat and its surroundings provide a convincing analog for space exploration. [2] Much like space, the undersea world is a hostile, alien place for humans to live.