Bathymetric Attributed Grid (BAG)

BAG is an open specification for representing bathymetric data as regular grids of seafloor depths with the corresponding vertical uncertainty and associated metadata. The BAG specification has been in use for conveying and archiving bathymetry, uncertainty, and metadata by a number of Hydrographic Offices for close to 20 years, including by U.S. National Oceanic and Atmospheric Administration (NOAA) Office of Coast Survey, the US Naval Oceanographic Office, the UK Hydrographic Office (UKHO), and many others. The format is also used by academic partners around the world. BAG files have support in several major GIS packages, and hydrographic processing applications.