GLORIA Mapping Program, Map Server, Woods Hole Science Center, Coastal and Marine Geology, U.S. Geological Survey, U.S. Department of the Interior
Data Center Description
The GLORIA system was developed specifically to map the morphology and texture of seafloor features in the deep ocean. The GLORIA system is a digital side scan sonar system capable of producing digital image maps of the seafloor from reflected sound waves.
The GLORIA creates sonographs by transmitting images by way of sound pulses and recorded echoes from the sea floor as the collecting ship moves along a set course. The sound source and receivers are built into a "fish" that is towed about 200 meters behind a ship. This electronic mapping system brings out a signal pulse every 30 seconds, which is then recorded by shipboard computers. The GLORIA provides such a broad view of the seafloor. The recorded digital data are processed and used to construct digital maps of the seafloor.