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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.
Main Line Islands seamount chain lineation (thick black line NW-SE) and two cross-trend seamount trails (thinner black lines that are E-W). Author NOAA Office of Ocean Exploration and Research
A bathymetric chart is a type of isarithmic map that depicts the submerged bathymetry and physiographic features of ocean and sea bottoms. [1] Their primary purpose is to provide detailed depth contours of ocean topography as well as provide the size, shape and distribution of underwater features.
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IBCSO version 2 was published in 2022 [5] and increased the extent of the bathymetric map to 50°S, increasing the area covered by 2.5 compared to IBCSO version 1. 92.7% of map data originate from multibeam data, 6.7% originate from singlebeam data, and the remaining ~1% comes from mixed sources (seismic reflection, lidar, etc.).
A bathymetric chart is a type of isarithmic map that depicts the submerged bathymetry and physiographic features of ocean and sea bottoms. [26] Their primary purpose is to provide detailed depth contours of ocean topography as well as provide the size, shape and distribution of underwater features.
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Blanco fracture zone map Bathymetry map of the North Atlantic Ocean showing the full extent of the Charlie-Gibbs fracture zone (horizontal black lines in the center of the image) Magnetostratigraphy of the East Pacific Rise near the Heirtzler fracture zone showing ages of sea floor spreading in millions of years (Ma) The Romanche fracture zone with red arrows indicating directions of movements ...