GLORIA

hydrography

Also known as: Geological Long-Range Inclined Asdic

Learn about this topic in these articles:

In undersea exploration: Exploration of the seafloor and the Earth’s crust
…those that employ Seabeam and Gloria (Geological Long-Range Inclined Asdic) permit mapping two-dimensional swaths with great accuracy from a single ship. These methods are widely used to ascertain the major features of the seafloor. The Gloria system, for example, can produce a picture of the morphology of a region at…
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In ocean basin: Exploration of the ocean basins
… multibeam echo sounder and the GLORIA scanning sonar. They operate on the principle that the depth (or distance) of the seafloor can be determined by multiplying one-half the elapsed time between a downgoing acoustic pulse and its echo by the speed of sound in seawater (about 1,500 metres [4,900 feet]…
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