Bathymetry
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 First printed map of oceanic bathymetry, produced with data from USS Dolphin (1836) |
Bathymetry is the study of underwater depth of lake or ocean floors. In other words, bathymetry is the underwater equivalent to hypsometry or topography. The name comes from Greek βαθύς (bathus), "deep", and μέτρον (metron), "measure". Bathymetric (or hydrographic) charts are typically produced to support safety of surface or sub-surface navigation, and usually show seafloor relief or terrain as contour lines (called depth contours or isobaths) and selected depths (soundings), and typically also provide surface navigational information. Bathymetric maps (a more general term where navigational safety is not a concern) may also use a Digital Terrain Model and artificial illumination techniques to illustrate the depths being portrayed. Paleobathymetry is the study of past underwater depths.
- Related: Bathymetric chart, Bathometer, Terrain
| Overview for underwater terrain, data formats, etc... Overview for underwater terrain, data formats, etc. www.vterrain.org/Elevation/Bathy/ - Web |
| High resolution bathymetry for the Great Barrier R... High resolution bathymetry for the Great Barrier Reef and Coral Sea e-atlas.org.au/content/gbr_jcu_bathymetry-3dgbr - Web |
| A.PO.MA.B.-Academy of Positioning Marine and Bathy... A.PO.MA.B.-Academy of Positioning Marine and Bathymetry apomabdoc.altervista.org/index.html - Web |
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