NCEP North American Regional Reanalysis (NARR)

The NCEP North American Regional Reanalysis products are on the Eta 221 grid at 29 pressure levels. They were produced using the Eta 32 km model with 45 vertical layers. The input data includes all observations used in NCEP/NCAR Global Reanalysis project, and additional precipitation data, TOVS 1B radiances, profiler data, land surface and moisture data, etc. The output analyses are 3-hourly with additional 9 variables in the 3-hour forecasts to reflect accumulations or averages.

NARR reruns from 20090311 to 20091214 are updated on February 4, 2010. In April 2015, NCEP has released rerun 4 [http://rda.ucar.edu/datasets/ds608.0/docs/rr4.pdf] from April 1, 2009 to January 31, 2015 to fix codes and Mexico precipitation data preparation.

See NCEP's NARR Frequently Asked Questions [http://www.emc.ncep.noaa.gov/mmb/rreanl/faq.html]

To Access Resource:

Questions? Email Resource Support Contact:

  • Chi-Fan Shih
    chifan@ucar.edu
    NSF NCAR - Geoscience Data Exchange

Temporal Range

  • Begin:  1979-01-01T00:00:00Z
    End:  2025-09-01T00:00:00Z

Keywords

Resource Type dataset
Temporal Range Begin 1979-01-01T00:00:00Z
Temporal Range End 2025-09-01T00:00:00Z
Temporal Resolution N/A
Bounding Box North Lat 85.3333
Bounding Box South Lat 0.8973
Bounding Box West Long 148.64
Bounding Box East Long -2.5677
Spatial Representation grid
Spatial Resolution 32463 m
Related Links

Related Resource #1 : NCEP's NARR Homepage

Related Resource #2 : International Soil Moisture Network

Related Resource #3 : Surface Radiation Budget Data

Related Resource #4 : NASA Water Vapor Project (NVAP)

Related Resource #5 : NCDC's NARR Archive

Related Resource #6 : NCEP's NARR Frequently Asked Questions
Additional Information N/A
Resource Format WMO_GRIB1
Standardized Resource Format GRIB
Asset Size 14557379 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name Chi-Fan Shih
Resource Support Email chifan@ucar.edu
Resource Support Organization NSF NCAR - Geoscience Data Exchange
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
Publisher NSF National Center for Atmospheric Research
Publication Date 2005-08-30
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier d608000
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress onGoing
Metadata Date 2025-10-03T01:19:59Z
Metadata Record Identifier edu.ucar.gdex::d608000
Metadata Language eng; USA
Suggested Citation National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce. (2005). NCEP North American Regional Reanalysis (NARR). NSF National Center for Atmospheric Research. https://gdex.ucar.edu/datasets/d608000/. Accessed 04 October 2025.

Harvest Source