Despite modern computer-based research, the ocean seabed in many locations is less measured than the topography of Mars. Also called bathymetric contour or depth curve. A line connecting points of equal depth below the hydrographic datum. Noninvasive body contouring by focused ultrasound: safety and efficacy of the Contour I. depth contour synonyms, depth contour pronunciation, depth contour translation, English dictionary definition of depth contour. Various methods have advantages and disadvantages and the specific method used depends upon the scale of the area under study, financial means, desired measurement accuracy, and additional variables. Ultrasound waves are sent deep into the layers of your skin, causing a disruptive vibration. Bathymetric measurements are conducted with various methods, from depth sounding, sonar and Lidar techniques, to buoys and satellite altimetry. Synonyms include seafloor mapping, seabed mapping, seafloor imaging and seabed imaging. Paleobathymetry is the study of past underwater depths.
The global bathymetry is sometimes combined with topography data to yield a global relief model. Safety Contour: The safety contour is the most important parameter of all the safety settings for the display of unsafe water areas, detecting isolated dangers and triggering anti-grounding alarms. 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. 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. (1) The own-ship safety contour, selected by the mariner from among.
The first recorded evidence of water depth measurements are from Ancient Egypt over 3000 years ago. IHO S-52 publication provides further details to the definition of Safety Depth. The sole purpose of the safety depth is to portray spot soundings either in gray for deeper depths or black for shallower depths compared to the safety depth. The safety contour (SC) value is calculated considering the safety depth and allowing for the category zone of confidence (CATZOC) displayed on an electronic. In other words, bathymetry is the underwater equivalent to hypsometry or topography. Wikipedia Rate this definition: 0.0 / 0 votesīathymetry ( from Ancient Greek βαθύς (bathús) 'deep', and μέτρον (métron) 'measure') is the study of underwater depth of ocean floors (seabed topography), lake floors, or river floors.
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