NASA Earthdata and the Goddard Earth Sciences Data and Information Services Center (GES DISC) has released ECOCO3 version 2.0, making available more than six years of spatially and temporally co-located ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) and Orbiting Carbon Observatory-3 (OCO-3) observations. These data provide users with synergistic, high-quality data on terrestrial vegetation and atmospheric parameters for easy and immediate use in scientific analysis and modeling.
Both ECOSTRESS and OCO-3 are currently operating on the International Space Station (ISS), providing observations that are filtered for data quality and spatially averaged onto a 0.005° x 0.005° uniform grid, i.e., 557m x 557m or 0.3 km2 at the Equator.
In this dataset, surface temperature, evapotranspiration, and water use efficiency data products from ECOSTRESS, and solar-induced chlorophyll fluorescence and dry-air column mole fraction CO2 data products from OCO-3 are matched in space and time over 3° x 3° areas around the globe where OCO-3 performs "Snapshot Area Map" and "Target" mode observations. Compared to ECOCO3 version 1.0 (released in June 2025), ECOCO3 version 2.0 is based on ECOSTRESS Collection 2 and OCO-3 Build 11. Version 2.0 includes a significantly larger set of ECOSTRESS higher-level data products beyond land surface temperature and evapotranspiration to now include water stress index, soil moisture, cloud cover, and others.
ECOCO3 version 2.0 presently covers the common ECOSTRESS/OCO-3 observation period of August 2019 through June 2026, which will be extended with current observations on a three-month update cycle for as long as Collection 2 and Build 11 data are being produced.
If you have questions or comments about these data, please visit the Earthdata Forum or email the GES DISC user services team.