2.2K views · 115 reactions | NOAA Ship Okeanos Explorer is headed back to the surface after exploring the unexplored Intercanyon Ridge. To prepare for our dive tomorrow surveying a sonar anomaly that might be a shipwreck, let's revisit the first wreck dive of the Windows to the Deep 2018 expedition. Tune in tomorrow as we investigate this sonar anomaly around 9 am ET. | NOAA Ocean Exploration | Facebook

Curious about how and why scientists map the ocean floor? Learn more about bathymetry: the study of underwater floors in oceans, rivers, or lakes! Just like dry land, the surface of the seafloor is not always flat––it can have coral reefs, mountainous ridges, deep canyons, and many other features that can be revealed in bathymetric data. Check out our latest ocean fact to learn more about what bathymetry is and why it is important: https://oceanexplorer.noaa.gov/facts/bathymetry.html | NOAA Ocea