Topographic Map Ocean Floor. Undertaken by the Seafloor Mapping Lab of California State University, Monterey Bay over a span of 44 days, the study involved 1,138. This map is designed to be used as a basemap by marine GIS professionals and as a reference map by anyone interested in ocean data.
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This product is intended to aid fishermen and those needing seafloor features and potential. Undertaken by the Seafloor Mapping Lab of California State University, Monterey Bay over a span of 44 days, the study involved 1,138.
These data, which are used in several national and international mapping bathymetry projects, are free to the public with no restrictions In 2004 and 2005, an in-depth multibeam bathymetric study was carried out, mapping bathymetry of the sea floor in west-central San Francisco Bay around Alcatraz and Angel Islands, underneath the Golden Gate Bridge, and through its entrance from the Pacific Ocean For most of history, what lay below the sea surface and on the seafloor was a mystery
18.1 The Topography of the Sea Floor Physical Geology. The following features are shown at example depths to scale, though each feature has a considerable range at which it may occur: 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. NCEI and the IHO Data Center for Digital Bathymetry (DCDB) archive and share depth data acquired by hydrographic, oceanographic, and industry vessels and platforms during surveys or while on passage
. Ocean Basemap The Ocean Basemap includes bathymetry, surface and subsurface feature names, and derived depths 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