On Monday, Dec. 22, 2025, from 8:00 a.m. to 5:00 p.m. ET, NASA's Atmospheric Science Data Center (ASDC) will conduct planned maintenance due to operating system updates. Data processing, distribution, and Dropbox (xfr139/xfr140) may be impacted during maintenance.
We are in the process of migrating all NASA Earth science data sites into Earthdata from now until end of 2026. Not all NASA Earth science data and resources will appear here until then. Thank you for your patience as we make this transition.
Read about the Web Unification Project