The asdc.larc.nasa.gov website is currently migrating to https://www.earthdata.nasa.gov/centers/asdc-daac.
Please see this site for new content (e.g., data release announcements, etc.). All users will be redirected by May 22, 2026. Please use the Earthdata Contact form to request more information.


About ASDC

The Mission of the Atmospheric Science Data Center (ASDC) is to be a leading provider of atmospheric science data products and services to the science community through agility, innovation, and technical excellence.
The ASDC is in the Science Directorate located at the NASA Langley Research Center (LaRC), in Hampton, Virginia. The Science Directorate's Climate Science Branch, Atmospheric Composition Branch, and Chemistry and Dynamics Branch work with ASDC to study changes in the Earth and its atmosphere. Data products translate those findings into meaningful knowledge that inspires action by scientists, educators, decision makers, and the public. The ASDC supports over 60 projects and provides access to more than 1000 archived collections. These data sets were created from satellite measurements, field experiments, and modeled data products. The ASDC projects focus on the Earth science disciplines Radiation Budget, Clouds, Aerosols, and Tropospheric Composition.

Recent DAAC Updates

STEP Data Release Announcement

Feb. 26, 2026, 8:37 a.m.

The Atmospheric Science Data Center (ASDC) has released data for the Stratosphere-Troposphere Exchange Project (STEP). STEP had two mission objectives: Investigate mechanisms and rates of …

Full Article
CERES GEO Edition 4 Version 1.4 Collections Announcement

Feb. 5, 2026, 12:23 p.m.

Version 1.4 of the Satellite Cloud and Radiation Property retrieval System (SatCORPS) Clouds and the Earth's Radiant Energy System (CERES) Geostationary Satellite (GEO) …

Full Article
MISR Level 1 Data Products Enter Final Reprocessing Announcement

Jan. 30, 2026, 11:58 a.m.

The Multi-angle Imaging SpectroRadiometer (MISR) Science Team and the Atmospheric Science Data Center (ASDC) announce the start of the final Level 1 reprocessing of MISR …

Full Article
MISR Radiometric Calibration Notice

Jan. 13, 2026, 1:33 p.m.

The MISR instrument aboard NASA’s Terra satellite has maintained excellent absolute and camera-to-camera radiometric calibration over more than a quarter century by employing routine bi-monthly …

Full Article