NOAA’s nowCOAST improves BlueTopo access

A screen capture of the BlueTopo data layer displayed in NOAA's nowCOAST showing the entrance to Long Island Sound.

NOAA’s Office of Coast Survey produces and maintains several types of data models and products, from operational forecast systems to nautical charts. One of these models comes from the office’s National Bathymetric Source, or NBS, program which creates and maintains high-resolution bathymetry composed of the best available data. Bathymetry is a term that refers to the depths and shapes of underwater terrain and is a visualization of the “beds” or “floors” of water bodies, including the ocean, rivers, streams, and lakes. This data model is available to the public in a product called BlueTopo.

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