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

Atmospheric Science User Forum

Welcome to the new Atmospheric Science User Forum! A place to ask the tough technical & scientific questions, confer with other scientists, and explore our knowledge base. Subject Matter Experts from the various NASA missions, such as CALIPSO, CERES, MISR, and SSE, along with others, will be responding to the questions you ask in the Forum. All are welcome to use this forum, simply create an Earthdata Login account.


CERES Subsetter

The ASDC CERES Search and Subset Web Application provides a single, easy to use web interface for quickly locating and subsetting CERES Level 2 SSF and FLASHFlux data granules using a high resolution spatial metadata database and directly accessing the archived data granules. Subset results are available in the original HDF format of the archived granules or netCDF.

CERES Search and Subset

The Blue Marble 43 Years Later

Here is a side-by-side comparison of views of our planet Earth taken from two different vantage points over more than four decades apart. The iconic "Blue Marble" view on the left was taken 43 years ago on December 7, 1972 from Apollo 17 on its way to the Moon. The view on the right is from Lagrangian Point L1, located approximately one million miles away from earth (about four times farther than the moon) and was provided by the Earth Polychromatic Imaging Camera (EPIC) sensor affixed to the Deep Space Climate Observatory (DSCOVR).


MISR L3 Aerosol Optical Depth 2013

Updated MISR Level 3 Imagery tool now contains data for 2009 - 2015. The Level 3 products are derived from averaging select Level 1 and Level 2 parameters over daily, monthly, seasonal and annual time periods. All MISR data products can also be ordered through the MISR Order and Customization Tool.

Level 3 Imagery

MISR Order and Customization Tool

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, is now available. This beta-release is an intuitive user interface for variable selection across different airborne field studies and includes features to create merge files based on a user’s choice of time base.  Prior to accessing the TAD Web Application ( for the first time


CATS Instrument

The Cloud-Aerosol Transport System (CATS) is a lidar remote sensing payload utilizing ISS as an affordable Earth Science observing platform. CATS provides in-space demonstration of technologies for future satellite missions while demonstrating build-to-cost project development with streamlined management structure. 

For more information, please see the CATS homepage or the attached presentation (PPT).

Longwave data visualization.

On NASA's Suomi NPP satellite, the newest version of the Clouds and the Earth's Radiant Energy System (CERES) instrument is scanning Earth, helping to assure availability of measurements of the energy leaving the Earth-atmosphere system.  The CERES results help scientists to determine the Earth's energy balance, providing a long-term record of this crucial environmental parameter that will be consistent with those of its predecessors.



RSS Feeds - news, announcements, maintenance.

CERES SYN1deg Ed4 Product Removal

Monday, April 18, 2016

The CERES Synoptic One Degree Edition4A product family, SYN1deg-1Hour, SYN1deg-3Hour, SYN1deg-MHour, SYN1deg-Day, and SYN1deg-Month with Configuration Code 400404 was pulled from public view after two errors were identified.


CATS-ISS L1B Version 2.06 and L2O Version 1.03 Release

Wednesday, March 30, 2016

The Atmospheric Science Data Center (ASDC) at NASA Langley Research Center in collaboration with the CATS Science Team is pleased to announce the release of the CATS Version 2.06 Level 1 and Version 1.03 Level 2 Operational Data Products.

Atmospheric Forum Release

Wednesday, February 24, 2016

The ASDC is pleased to announce the release of the Atmospheric Science User Forum.

Terra is in NORMAL Mode

Monday, February 22, 2016

Updated Status on Terra Anomaly as of 10pm February 22, 2016.

 TERRA has recovered from Safe Hold and is now in Normal mode. CERES will hold their CAM Wednesday morning and will return to Crosstrack around 18:00 GMT (1:00 PM) local.