The Altimeter Corrected Elevations (ACE2) Map Interface is a map-based tool to download satellite altimeter-corrected digital elevation data for environmental, socioeconomic, climate and other related research, such as flood risk assessment, land deformations, landslide modeling, urban planning, and sea level rise impacts.
Delivery of Suomi National Polar-orbiting Partnership (Suomi NPP) satellite data products will cease on November 1, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20.
Suomi NPP data announcement