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

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.

September 2018 ASDC Newsletter Announcement

The ASDC September Newsletter covers the release of CALIPSO Lidar L3 V1-00 monthly products for Ice Cloud Standard and the Stratospheric Aerosol Profile. Also released are the CERES GEO V1.01 instantaneous geo-stationary pixel level cloud and radiation products, and an updated GLoSSAC V1.1 38 year global, gap free climatology of stratospheric aerosol properties product. Check out MISR images of Hurricane Lane passing over Hawaii.

Access the ASDC September 2018 Newsletter

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.

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.

MISR Aoba Volcano Plume

The Aoba volcano located on Ambae, one of the Vanuatu Island chain in the SW Pacific, began showing heightened activity on August 30, 2017. This image shows a Terra/MODIS image from Worldview taken March 16, 2018 of a Multi-Angle Imaging Spectroradiometer (MISR) observed plume reaching ~5km. Accurate plume heights are needed to determine the influence of volcanic eruptions, but are difficult to obtain due to the hazardous nature of volcanic eruptions. Stereo images from NASA's MISR make it possible to retrieve plume height in ongoing eruptions using  parallax.
View image details.

Toolsets for Airborne Data

The Toolsets for Airborne Data (TAD), developed at the Atmospheric Science Data Center (ASDC) at NASA Langley Research Center (LaRC) to promote the airborne data use, has added additional data sets! Now available is the entire NASA Deriving Information on Surface Conditions from COlumn and VERtically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) Campaign including Maryland, Texas, California, and Colorado. To order and download the aircraft data sets you can access TAD at:


DAAC Updates

RSS Feeds - daac updates, announcements, maintenance.

CALIPSO CALIOP L2 Lidar Standard V4.20 Release Announcement

Thursday, October 11, 2018

The CALIPSO mission team, in collaboration with the Atmospheric Science Data Center (ASDC) at NASA Langley Research Center and HYGEOS/AERIS/ICARE Data and Services Center, announces the release of an update to the standard Level 2 lidar data products.


CALIPSO - Sister Satellites, Briefly Separated, Working Together Again

Friday, September 28, 2018

In February 2018, facing a mechanical challenge, CloudSat had to exit the A-Train, or afternoon constellation, of Earth-orbiting satellites, and move to a lower orbit.

CALIPSO Orbit Change

Tuesday, September 11, 2018

On September 13, 2018 CALIPSO will begin lowering its orbit from 705 km to 688 km to resume formation flying with CloudSat.

High Temporal Resolution Air Quality Observations from Space: NASA ARSET Training Announcement

Friday, August 31, 2018

NASA Applied Remote Sensing Training Program (ARSET) Air Quality related training webinar on: