Solar radiation enters the Earth's atmosphere with a portion being scattered by clouds and aerosols.

Processing, archiving and distributing Earth science data
at the NASA Langley Research Center

SAGE III-ISS Occultation Event

SAGE III-ISS Occultation Event

This moonset image is illustrating an occultation event from the SAGE III instrument, which is used to measure Ozone, NO2 and NO3 concentrations in the upper atmosphere. Nitrogen Trioxide (NO3) virtually disappears from the atmosphere when the sun rises, but SAGE III/ISS utilizes lunar occultation to measure its concentration. Version 5.1 is the first official release of SAGE III/SS data that includes provisional products suitable for use in both validation and research studies and some new beta data products.
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MOPITT Imagery for California Fires
The Measurement of Pollution in the Troposphere (MOPITT) instrument is flying on board NASA's Terra satellite. It observes CO in the troposphere through thermal and near infrared channels.The imagery clearly shows enhanced levels of CO associated with the Camp and Woolsey wildfires in northern and southern California, respectively. The high CO west of Mexico may be an aged part of the Woolsey/Camp plumes, based on the location of high CO the day before and on the smoke trajectories shown by the MODIS visible images.
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CALIPSO and CloudSat over Typhoon Yutu
Typhoon Yutu near the coast of Japan on October 28, 2018. Data from the CALIPSO lidar and CloudSat radar appear as vertical slices in the atmosphere. CALIPSO lidar data is visualized as a bluish slice, with red and yellow colors denoting more scattering off of clouds and aerosols. CloudSat radar data is superimposed on the CALIPSO slice in brighter colors.
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CALIPSO and CloudSat Over Hurricane Maria and Tropical Storm José

Hurricane Maria near the Caribbean Sea and Tropical Storm José off the northeast U.S. coast on September 20, 2017. Data from the CALIPSO lidar and CloudSat radar appear as vertical slices in the atmosphere. CALIPSO lidar data is visualized as a bluish slice, with red and yellow colors denoting more scattering off of clouds and aerosols. CloudSat radar data is superimposed on the CALIPSO slice in brighter colors. Areas of heavier precipitation, found in each storm’s spiral bands, appear in red and pink.
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Ash from the Kilauea Eruption

Ash from the Kilauea Eruption On May 6, 2018, at approximately 11 a.m. local time, the Multi-angle Imaging SpectroRadiometer (MISR) instrument on NASA's Terra satellite captured this view of the island as it passed overhead. Much of the island was shrouded by clouds, including the fissure on its eastern point. However, an eruption plume is visible streaming southwest over the ocean. The MISR instrument is unique in that it has nine cameras that view Earth at different angles: one pointing downward, four at various angles in the forward direction, and four in the backward direction. This image shows the view from one of MISR's forward-pointing cameras (60 degrees), which shows the plume more distinctly than the near-vertical views.
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CERES FM6 First Light Imagery

Clouds and the Earth's Radiant Energy System Flight Model 6 (CERES FM6) opened its cover on Jan. 5, 2018 allowing it to scan Earth for the first time. The instrument is one of five that launched Nov. 18, 2017 on the National Oceanic and Atmospheric Administration's (NOAA) Joint Polar Satellite System 1 (JPSS-1), and is the seventh and final copy since the first CERES instrument was launched in 1997. FM6 is the most accurate broadband radiometer that NASA/NOAA has flown that measures the solar energy reflected by Earth, heat the planet emits, and the role of clouds in that process.
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DAAC Updates

RSS Feeds - daac updates, announcements, maintenance.

MOPITT Near-Real Time Data Announcement

Wednesday, February 27, 2019
  • MOPITT will be performing its quasi-annual Hot Calibration from March 11 through March 22, 2019. It is out of science mode during this period and not producing data.

MOPITT V8 Release Announcement

Tuesday, February 12, 2019
The MOPITT team is releasing Version 8 (V8) Level 2 (L2) and Level 3 (L3) retrievals from the Thermal Infrared Radiance (TIR) MOPITT channels, with Near-Infrared (NIR) and Joint (TIR+NIR) Radiances.

SAGE III-ISS Version 5.1 Announcement

Monday, January 28, 2019

The NASA Langley Atmospheric Sciences Data Center (ASDC) and the Stratospheric Aerosol and Gas Experiment (SAGE) III/ International Space Station (ISS) team announce the public release of Version 5.1.

CALIPSO CALIOP V1.00 L3 Cloud Occurrence Formal Release Announcement

Thursday, December 13, 2018

The CALIPSO mission team, in collaboration with the Atmospheric Science Data Center (ASDC) at NASA Langley Research Center and HYGEOS/AERIS/ICARE Data Center and Services Center, announces the release of a new CALIOP Level 3 Cloud Occurrence Product: