The Ocean Observatories Initiative (OOI) is a science-driven ocean observing network that delivers real-time data from more than 800 instruments to address critical science questions regarding the world’s ocean. OOI data are freely available online to anyone with an Internet connection.

The numbers shown here are as of 5/1/20 and are continually increasing. This graphic will be updated periodically to reflect the ever-increasing numbers and data resources provided by the OOI. Credit: ©Woods Hole Oceanographic Institution.