Seafloor Elevation Map

This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.

Seafloor elevation map.

These were only sensitive enough to see the gravitational lumps caused by relatively. Crater lake images data movie poster cd rom. Elwha river bathymetry and acoustic backscatter 2010. This product is intended to aid fishermen and those needing seafloor features and potential fishing grounds.

The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. Navy and other sources. Channel islands images data. Effect of global warming and climate change.

Flood map shows the map of the area which could get flooded if the water level rises to a particular elevation. California state waters map series see web site. Seafloor gravity maps aren t entirely new but until recently relied solely on data from older satellites. Library of congress geography and map division.

Their compilation map of the global seafloor was published in 1977. A marine gravity map of the north atlantic ocean red dots show locations of earthquakes with magnitude 5 5 and they highlight the present day location of the seafloor spreading ridges and. Columbia river mouth data. Bathymetric and fishing maps viewer.

Shading is computed as a function of the east west slope of the surface with a nonlinear exaggeration favoring low relief areas. Continental shelf 300 feet continental slope 300 10 000 feet abyssal plain 10 000 feet abyssal hill 3 000 feet up from the abyssal plain seamount 6 000 feet. This image was generated by noaa from digital data bases of land and sea floor elevations on a 2 minute latitude longitude grid 1 minute of latitude 1 nautical mile or 1 853 km. Deep sea basins washington oregon and california report and data.

Bathymetric map ocean depth. Topographic maps of the sea floor produced at a 1 100 000 scale that contain loran c rates bottom sediment types and known bottom obstructions. Map of the northern gulf of mexico showing the nearly 4 000 active oil and gas platforms. The colors on this reflectivity map describe the hardness of the seafloor surface.

In the 1950s marie tharp and bruce heezen of what was then called the lamont geological observatory began creating seafloor maps based on single beam sounding data from the u s. California seafloor mapping program central oregon data. This map shows the alvin dive track along the seafloor.