- published: 05 Apr 2012
- views: 9716
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.
Originally, bathymetry involved the measurement of ocean depth through depth sounding. Early techniques used pre-measured heavy rope or cable lowered over a ship's side. This technique measures the depth only a singular point at a time, and is therefore inefficient. It is also subject to movements of the ship and currents moving the line out of true and therefore is inaccurate.
The Atmosphere, the Ocean and Environmental Change (GG 140) Plate tectonics and ocean bathymetry are discussed. Bathymetry is the study of ocean depth, which is affected in some regions by plate tectonics and mantle dynamics. Mid-ocean ridges are formed at plate boundaries where mantle material is rising to the ocean crust and solidifying as it cools to form new ocean crust material. Seamounts are volcanoes that have formed from molten mantle material pushing up through the ocean crust, but these volcanoes lie below sea level. These features are measured using acoustic depth profiling. Ocean water properties, such as temperature and salinity, as well as the methods used to measure them are also discussed. 00:00 - Chapter 1. Plate Tectonics 17:12 - Chapter 2. Ocean Bathymetry 2...
"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 , "deep", and μέτρον , "measure". Bathymetric charts are typically produced to support safety of surface or sub-surface navigation, and usually show seafloor relief or terrain as contour lines and selected depths , and typically also provide surface navigational information. Bathymetric maps 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. Originally, bathymetry involved the measurement of ocean depth through depth sounding. Early techniques used pre-measured heav...
Bathymetry is the study and mapping of seafloor topography. It involves obtaining measurements of the depth of the ocean and is equivalent to mapping topography on land. The bathymetric survey will produce a map that charts the contours, depths and hardness of the ocean floor. The video above is not the result of the MH370 survey, but demonstrates the type of information and detail that is being gathered.
Our first music video filmed in Liverpool by the lovely Felix Brassier. Goblin Fruit - Track 1 on our debut album. It was a labour of love and lots of mess to clean up after ward. Hope you enjoy! © by Bathymetry http://www.bathymetryband.com • Videography by Félix Brassier • Music Production by Wedge ----------------------------------- Buy album here → http://bit.ly/bathyshop ----------------------------------- LYRICS: She sucked until her lips were sore ×4 Juice was dripping down her sleeve ×2 I was frightened when she looked at me ×2 And said nothing ever tasted So sweet Come buy, come buy Come spend, come in Come sit with us Forget the cost I watched her waste away Nothing seemed to taste the same And tears were slipping down her cheek ×2 I was frightened when she...
Geoscience Australia is providing extensive advice, expertise and support to the Australian Transport Safety Bureau (ATSB). The ATSB is leading a seabed mapping and underwater search for missing Malaysia Airlines flight 370 in the southern Indian Ocean. Bathymetry is the study and mapping of the sea floor. It involves obtaining measurements of the depth of the ocean and is equivalent to mapping on land. Before the underwater search for MH370 could begin, it was necessary to accurately map the sea floor to ensure that the search is undertaken safely and effectively. Bathymetry survey vessels spent months at sea, scanning the sea floor with multibeam sonar to gather detailed, high-resolution data. The data has revealed many seabed features for the first time. This computer-animated ‘flythro...
Where do we find good bathymetric data for our recreational fishing grounds map?
http://www.platinumlakemanagement.com Platinum Lake Management specializes in helping HOA's, property managers, and property owners in assessment and plan development for retention ponds and lakes. Greenville SC or Asheville NC call 864.381.7663. Charlotte NC call 704.816.0526 Mapping is the perfect tool in planning sedimentation removal timeline or proof of control of aquatic weeds through lake management. Used by permission. Copywrite 2013 Contour Innovations LLC Until now, HOAs and private pond owners and lake owners have had to swim in the dark with their aquatic weed problems and costly sedimentation removal, with the overall health of their pond and lake at stake. The technology has changed all of this with the ability to monitor your pond or lake for silt, aquatic weeds and ev...
The Oceanscience Z-Boat 1800 is the most cost-effective way to complete shallow water surveys where a manned boat is too large, too expensive, too time consuming to mobilize, or the environment is too dangerous for people to work in. A turnkey package, the Z-Boat 1800 includes a depth sounder, GPS and a radio communication system offering a fast and easy survey process. The shore laptop displays the boat position and soundings in real time, allowing the operator to easily guide the boat over the survey route.