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NASA Satellite Product Levels

NASA data products are categorized into different "Levels". These are product dependent but the following description for OMI (Ozone Monitoring Instrument) data products is a general guideline:

Level-1B  (L1B): Products containing geolocated and calibrated spectral radiance and solar irradiance data.

Level-2 (L2): Atmospheric products derived from the L1B product. One file per orbit.

L2G: Daily binned global products derived from the L2 products.

Level-3 (L3): Averaged global gridded products, screened for bad data points.

Post-Processing involves changes only in ancillary data or information.

Re-Processing indicates data processing due to changes in the Retrieval Algorithms.

See also: EOS-DIS data product levels.


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Climate Data Guide Image: Guide to NASA product levels Guide to NASA product levels

Cite this page

National Center for Atmospheric Research Staff (Eds). Last modified 13 Jan 2014. "The Climate Data Guide: NASA Satellite Product Levels." Retrieved from https://climatedataguide.ucar.edu/climate-data/nasa-satellite-product-levels.

Acknowledgement of any material taken from this page is appreciated. On behalf of experts who have contributed data, advice, and/or figures, please cite their work as well.

NASA Satellite Product Levels

NASA data products are categorized into different "Levels". These are product dependent but the following description for OMI (Ozone Monitoring Instrument) data products is a general guideline:Level-1B  (L1B): Products containing geolocated and calibrated spectral radiance and solar irradiance data. Level-2 (L2): Atmospheric products derived from the L1B product. One file per orbit.L2G: Daily binned global products derived from the L2 products.Level-3 (L3): Averaged global gridded products, screened for bad data points.Post-Processing involves changes only in ancillary data or information.Re-Processing indicates data processing due to changes in the Retrieval Algorithms. See also: EOS-DIS data product levels.

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