bathymetry
Sign in to savethumb|upright=1.7| thumb|right|Animation reveals oceanic floors and seabeds. Continental shelves appear mostly by a depth of 140 meters, [[mid-ocean ridges by 3000 meters, and oceanic trenches at depths beyond 6000 meters.]] thumb|right|A seafloor map captured by NASA
Article
13 sectionsContents
- Seabed topography
- Measurement
- Satellite imagery
- Hyper-spectral sensors
- Multi-spectral sensors
- Airborne laser bathymetry
- Examples of commercial LIDAR bathymetry systems
- High resolution orthoimagery
- History
- Charts
- See also
- References
- External links
thumb|upright=1.7| thumb|right|Animation reveals oceanic floors and seabeds. Continental shelves appear mostly by a depth of 140 meters, [[mid-ocean ridges by 3000 meters, and oceanic trenches at depths beyond 6000 meters.]] thumb|right|A seafloor map captured by NASA
Bathymetry () is the study of underwater depth of ocean floors (seabed topography), river floors, or lake floors. In other words, bathymetry is the underwater equivalent to hypsometry or topography. The first recorded evidence of water depth measurements are from Ancient Egypt over 3000 years ago. Bathymetry has various uses including the production of bathymetric charts to guide vessels and identify underwater hazards, the study of marine life near the floor of water bodies, coastline analysis and ocean dynamics, including predicting currents and tides.