Science and Data

Illustrated map of Earth’s landmasses, with data overlaying to show the concentration of nitrogen dioxide in the troposphere. The colors range from light blue (low concentration) to yellow to red (high concentration). Majority of the map is in light blue with splatters of yellow. Red appears concentrated primarily over east Asia and Europe.

Aura Science Observations

For twenty years, Aura's four instrument teams study the atmosphere's chemistry and dynamics. Aura's measurements enable us to investigate questions about ozone trends, air quality changes and their linkage to climate change. Browse through the various observations through the years.

Data Processing

The EOS Data and Operations System (EDOS) is responsible for data capture and initial processing of spacecraft data. Aura data from OMI, MLS, HIRDLS, and TES are further processed by the individual instrument science teams to geophysical data products. This activity takes place on the Science Investigator-lead Processing System (SIPS). The SIPS also provides calibration, validation and data quality assurance. Once the SIPS completes its job, the data are forwarded to the Distributed Active Archive Centers (DAAC).

OMI, HIRDLS, and MLS data products reside in the GSFC DAAC while TES resides at Langley Research Center DAAC. The DAAC s are responsible for management, archiving and distribution of Aura data. Aura data products will be available to a range of users including science researchers, government agencies, educators and value-added providers.

Aura Science Publications

External Data Sources

GES DISC

For HIRDLS, MLS and OMI, the data are held at the Goddard Earth Science Data and Information Services Center (GES DISC). Data can also be accessed through the Giovanni system.

Aura data users should download the data user guides available at the instrument web sites, and should contact the science teams for additional questions about the data.

TES Data

For TES, the data are held at the NASA Langley Atmospheric Sciences Data Center. The Aura instrument validation data are held at the Aura Validation Data Center at Goddard Space Flight Center.

OMI Data

Get daily images from OMI Sulfur Dioxide or Nitrogen Dioxide web sites. Get OMI data from the Aura Validation Data Center. Sample images, and data related to composite solar spectra are at the OMI data at Center for Astrophysics. Various imagery and OMI data sets at the NASA Ozone and Air Quality web site. Get data from OMI facilitating scientific research on the impact of the COVID-19 pandemic on global air quality.

MLS Data

More Resources