This is a visualization of Ocean Currents around the World This is a visualization of ocean currents around the world. NASA’s ocean model, Estimating the Circulation and Climate of the Ocean (ECCO)), is used to visualize the currents. The ECCO ocean circulation model incorporates observations from spacecraft, buoys, and other in situ measurements to keep the model accurate. ECCO is a joint project between NASA/JPL and MIT. The model output used here is from ECCO-2 and covers the years 2021-2023.