Ocean Floor Bathymetry Map

And international government and academic sources see individual cruise metadata records for source.
Ocean floor bathymetry map. Hr this low resolution bathymetric map shows us the average seafloor depth of a 200m square area. Release of version 4 of the international bathymetric chart of the arctic ocean ibcao. This bathymetric map created using the em 300 multibeam sonar shows the ridge crest at 4 times greater resolution than previous maps. The bathymetric map when combined with the other three maps serves as a base for making geological geophysical studies of the oceans bottom s crustal geophysical data for the continental shelf.
Data are acquired from both u s. Bathymetric data is used for a range of purposes including. Ship tracks of multibeam bathymetric surveys archived at noaa ncei. Gebco spotlight new depth map for the arctic ocean region.
The multibeam bathymetry database mbbdb at ncei collects and archives multibeam data from the earliest commercial installations circa 1980 through today s modern high resolution collections. It aims to bring together all available bathymetric data to produce the definitive map of the world ocean floor by 2030 and make it available to all. Bathymetric and fishing maps viewer. Each consist of three sheets a base bathymetric map a magnetic map and a gravity map and where practicable a sediment overprint nos 1308n 17s.
Bathymetry is the study and mapping of the sea floor. Charting and ship navigation. Bathymetry map of east flower garden bank. It involves obtaining measurements of the depth of the ocean and is the equivalent to mapping topography on land.
Bathymetry is the study of the beds or floors of water bodies including the ocean rivers streams and lakes. Bathymetry the shape of the ocean floor is largely a result of a process called plate tectonics the outer rocky layer of the earth includes about a dozen large sections called tectonic plates that are arranged like a spherical jig saw puzzle floating on top of the earth s hot flowing mantle. The term bathymetry originally referred to the ocean s depth relative to sea level although it has come to mean submarine topography or the depths and shapes of underwater terrain. Layers 0 management regions.
Hr galapagos expedition survey area lies within the red box shown on the globe at upper left.