The "Estimating the Circulation and Climate of the Ocean" (ECCO) project assimilates observations with models to produce sustained estimates of the complete three-dimensional global state of the ocean for studying large-scale ocean dynamics, designing observational strategies, and examining the ocean's role in climate variability. The project brings together diverse data streams, including satellite observations (e.g., sea level from the Jason-series satellite altimeters and ocean bottom pressure from the GRACE and GRACE-Follow On missions) and in situ measurements (e.g., temperature and salinity profiles from Argo floats and CTDs) to obtain the best possible estimate of the time evolving ocean circulation and related uncertainties.
ECCO contributes to programs such as the Climate and Ocean: Variability, Predictability and Change (CLIVAR) and Global Ocean Data Assimilation Experiment (GODAE) OceanView projects. ECCO is a consortium with partners at the Massachusetts Institute of Technology (MIT), University of Texas (UT) at Austin, Atmospheric and Environmental Research (AER), and the Jet Propulsion Laboratory (JPL).
See More: https://podaac.jpl.nasa.gov/ECCO