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Bathymetric surveys and charts are associated with the science of oceanography, particularly marine geology, and underwater engineering or other specialized purposes. Bathymetric Map of Medicine Lake, CA. Bathymetric data used to produce charts can also be converted to bathymetric profiles which are vertical sections through a feature.
A seafloor map captured by NASA. Bathymetry (/ b ə ˈ θ ɪ m ə t r i /; from Ancient Greek βαθύς (bathús) 'deep' and μέτρον (métron) 'measure') [1] [2] is the study of underwater depth of ocean floors (seabed topography), lake floors, or river floors. In other words, bathymetry is the underwater equivalent to hypsometry or ...
The General Bathymetric Chart of the Oceans (GEBCO) is a publicly available bathymetric chart of the world's oceans. The project was conceived with the aim of preparing a global series of charts showing the general shape of the seafloor. Over the years it has become a reference map of the bathymetry of the world's oceans for scientists and others.
English: This Canim Lake Bathymetric Map was surveyed on May 27, 1952 by the British Columbia. Fish and Game Branch, currently known as the Fish and Wildlife Branch Fish and Game Branch, currently known as the Fish and Wildlife Branch
Depth contour lines show the shape of underwater relief. Coloured areas of the sea emphasise shallow water and dangerous underwater obstructions. Depths are measured from the chart datum, which is related to the local sea level. The chart datum varies according to the standard used by each national Hydrographic Office.
Contour map of Gulf of Mexico as sounded by the C&GS Steamer Blake between 1873 and 1875. Over 3,000 soundings went into this chart, most of the deep water soundings taken by the Sigsbee Sounding Machine. This was the first realistic bathymetric map of any oceanic basin. In: "Three Cruises of the BLAKE" by Alexander Agassiz, 1888. P. 102.
The Lake Crescent Bathymetric Survey: In 2013 and 2014, geographic data scientists Eian Ray and Jeff Enge performed a lake-wide bathymetric survey, taking over 5,000 depth soundings. GIS statistical analysis showed the lake contains approximately 0.5 cubic miles (2.1 km 3) of freshwater. The deepest spot was shown to be 596 feet (182 m) deep.
The nearest volcano to the lake, to its southeast, is the Ardoukôka, about 3 km (1.9 mi) away from the shores of the lake, which is marked on topographic map with (-) 80 m (260 ft) contour line. The southern part of the lake has sand patches whose width varies from about 1–6 km (0.62–3.73 mi).