Underwater Gas Plume
Video courtesy of the NOAA Ocean Exploration. Download larger version (mp4, 24.5 MB).

One of the primary goals of the Mountains in the Deep expedition was to get a good first look at the deep-sea habitats that exist throughout the Central Pacific Basin, with a particular focus on underwater. During the expedition, the team was able to combine high-resolution multibeam mapping data with remotely operated vehicle dives to provide an entirely new understanding of these mountains that rise from the deep and serve important roles in the overall ocean ecosystem.