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



ASDC ingest, archive and distribution operations are now in service. We are currently working off the backlog on the system, which should take several days. You will receive your data as the system processes your subscriptions and requests. There are still some unplanned system issues which are preventing access to a few websites at the NASA Langley ASDC. We apologize for any inconvenience and thank you for your patience. If you have any questions please contact: User and Data Services:





RSS Feeds - news, announcements, maintenance.

SAGE III-ISS Alternative Data Source and Reduced Services

Friday, November 3, 2017

The ASDC is experiencing unplanned downtime on certain systems affecting the web cluster and order tools, affecting the release of SAGE III-ISS products.


SAGEIII-ISS Data Release

Friday, October 27, 2017

Launched on February 19, 2017 on a SpaceX Falcon 9 from Kennedy Space Center, the Stratospheric Aerosol and Gas Experiment III on the International Space Station (SAGE III-ISS) is the second instrum

CALIPSO Expedited Images Available on OPeNDAP

Tuesday, October 17, 2017

Due to the unplanned maintenance on all CALIPSO related websites at the NASA Langley ASDC users are unable to view the standard suite of CALIPSO browse images. An OpenDAP portal with the expedited browse images has been created and is available at:


CALIPSO LIDAR L1 V4.00 Product Retirement

Wednesday, October 11, 2017

The CALIPSO mission announces that as of 11 October 2017 the Version 4.00 Lidar Level 1 product will no longer be publicly available from the Atmospheric Science Data Center (ASDC) at NASA Langley Research Center.