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    • NLDAS Primary Forcing Data L4 Monthly 0.125 x 0.125 degree V2.0 (NLDAS_FORA0125_M) at GES DISC

    Metadata Updated: June 13, 2025

    This data product contains the monthly primary forcing data "File A" for Phase 2 of the North American Land Data Assimilation System (NLDAS-2). The data are in 1/8th degree grid spacing and range from Jan 1979 to the present. The temporal resolution is monthly. The file format is netCDF (converted from the GRIB data files). The NLDAS-2 monthly primary forcing data were generated from the NLDAS-2 hourly primary forcing data, as monthly accumulation for total precipitation, convective precipitation, and potential evaporation, and monthly average for other variables. The convective precipitation monthly total is the hourly convective fraction multiplied by the hourly precipitation (both from the NLDAS-2 "File A" files), and then summed over all hours of the month. Monthly period of each month is from 00Z at start of the month to 23:59Z at end of the month. The one exception to this is the first month (Jan. 1979) that starts from 00Z 02 Jan 1979, except for the monthly accumulated precipitation and convective precipitation that both start from 12Z 01 Jan 1979. The monthly land surface forcing fields for NLDAS-2 are grouped into two files, "File A" and "File B". "File A" is the primary (default) forcing file and contains eleven meteorological forcing fields. Details about the generation of the NLDAS-2.0 forcing datasets can be found in Xia et al. (2012).

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date April 11, 2025
    Metadata Updated Date June 13, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 11, 2025
    Metadata Updated Date June 13, 2025
    Publisher NASA/GSFC/SED/ESD/TISL/GESDISC
    Maintainer
    Identifier 10.5067/2DPKB5B5N14O
    Data Last Modified 2025-06-12
    Category Earth Science
    Category Tag 16E15F51 D96E 4051 9124 75665Abdc6Ff "Water"
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id d5f55053-12a1-4a95-8c42-22af12362816
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Old Spatial "CARTESIAN",{"WestBoundingCoordinate":-125,"NorthBoundingCoordinate":53,"EastBoundingCoordinate":-67,"SouthBoundingCoordinate":25}
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash 01f2c6f7fc430f5299d41dc20dd11838d3116bff91ba13ee130c99765572f0e2
    Source Schema Version 1.1
    Spatial

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