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NCEP North American Regional Reanalysis (NARR)

Published by National Oceanic and Atmospheric Administration, Department of Commerce | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: April 12, 2026 at 03:41 AM | Dataset Last Updated: April 30, 2023 at 12:00 AM
The NARR dataset is an extension of the NCEP Global Reanalysis which is run over the North American Region. The NARR model uses the very high resolution NCEP Eta Model (32km/45 layer) together with the Regional Data Assimilation System (RDAS) which, significantly, assimilates precipitation along with other variables. Data is output 4-8 times daily. Daily and Monthly values are available. The datasets starts in 1979.

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