Oceanographic data and ROV dive-related multimedia and information collected during the EX1402L3 (Gulf of Mexico Mapping and ROV Exploration) expedition on NOAA Ship OKEANOS EXPLORER in the Gulf of Mexico from 2014-04-10 to 2014-05-01 (NCEI Accession 0157088)

This dataset contains oceanographic data collected in deep water areas south and southeast of the flower Garden Banks National Marine Sanctuary (FGBNMS), including Keathley Canyon and adjacent parts of the Sigsbee Escarpment, and areas on the West Florida Escarpment southwest of Tampa. Daily ROV dives were conducted with full shore-based science participation. Evening and nighttime mapping and CTD operations were also conducted and focused in depths less than 500 m. Most of the operations, including the transit, were conducted within the 200nm exclusive economic zone (EEZ) maritime boundary of the United States of America.