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Climate Policy Speaker Series

NASA's Climate Briefings series is designed to assist the NASA Headquarters community learn about climate and global change issues.

The series is a service of the Science Mission Directorate's (SMD's) Earth Science Division, a significant contributor to national and worldwide technology, measurements, and research in climate and global change to support scientific understanding and inform policy options.

Data Maturity Levels



Products intended to enable users to gain familiarity with the parameters and the data formats.


Product was defined to facilitate data exploration and process studies that do not require rigorous validation. These data are partially validated and improvements are continuing; quality may not be optimal since validation and quality assurance are ongoing.

Data Processing Levels

EOSDIS data products are processed at various levels ranging from Level 0 to Level 4. Level 0 products are raw data at full instrument resolution. At higher levels, the data are converted into more useful parameters and formats. All EOS instruments must have Level 1 products. Most have products at Levels 2 and 3, and many have products at Level 4.

Data Level


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