![]() ![]() Over time, the technologies to map the seafloor have evolved to be faster and provide higher-resolution data. Since the ocean floor is not visible to us, can be difficult to map. A contour line represents a corresponding imaginary line on the surface of the land or bottom of the ocean that has the same elevation or depth along its entire length. Topographic elevations and bathymetric depths are often shown on maps with contour lines. Bathymetric maps show depths of landforms below sea level. Topographic maps show elevation of landforms above sea level. The better maps communicate information, the more effective they are as a real-world model. Download image (jpg, 63 KB).Ī map is a flat model of all or part of Earth’s surface drawn to a specific scale. Image courtesy of the NOAA Office of Ocean Exploration and Research, Exploring Deep-sea Habitats off Puerto Rico and the U.S. High-resolution bathymetry mapping data collected by the multibeam sonars of NOAA Ship Okeanos Explorer revealed complex topographic features around Saba Valley, near Puerto Rico. Diversity, Equity, Inclusion, and Accessibility. ![]()
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