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

Atmospheric
Science
Data Center

 Processing, archiving, and distributing Earth science data at NASA Langley Research Center
NOTICE: January 23, 2012: CALIPSO is in SAFE mode and the Payload Computer is OFF due to a significant M8.7 solar flare at 03:59 UTC and the resulting increase in 10 and 100 MeV protons. Science data is not acquired while the payload is in SAFE mode.

The Atmospheric Science Data Center (ASDC) at NASA Langley Research Center is responsible for processing, archiving, and distribution of NASA Earth science data in the areas of radiation budget, clouds, aerosols, and tropospheric chemistry.The ASDC specializes in atmospheric data important to understanding the causes and processes of global climate change and the consequences of human activities on the climate.  

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Responsible NASA Official: John M. Kusterer
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 Official site for NARSTO science data.