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    • R-Factor for the Conterminous United States

    Metadata Updated: March 15, 2024

    The rainfall-runoff erosivity factor (R-Factor) quantifies the effects of raindrop impacts and reflects the amount and rate of runoff associated with the rain. The R-factor is one of the parameters used by the Revised Unified Soil Loss Equation (RUSLE) to estimate annual rates of erosion. This product is a raster representation of R-Factor derived from isoerodent maps published in the Agriculture Handbook Number 703 (Renard et al.,1997). Lines connecting points of equal rainfall ersoivity are called isoerodents. The iserodents plotted on a map of the coterminous U.S. were digitized, then values between these lines were obtained by linear interpolation. The final R-Factor data are in raster GeoTiff format at 800 meter resolution in Albers Conic Equal Area, GRS80, NAD83.

    Access & Use Information

    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 Date February 29, 2024
    Metadata Created Date November 12, 2020
    Metadata Updated Date March 15, 2024
    Reference Date(s) December 26, 2013 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NOS OCM

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 29, 2024
    Metadata Created Date November 12, 2020
    Metadata Updated Date March 15, 2024
    Reference Date(s) December 26, 2013 (publication)
    Responsible Party NOAA Office for Coastal Management (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:48224
    Access Constraints Cite As: Office for Coastal Management, [Date of Access]: R-Factor for the Conterminous United States [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48224., Access Constraints: None, Use Constraints: None, Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners.
    Bbox East Long -66.4104121711
    Bbox North Lat 48.4453282747
    Bbox South Lat 24.5562065906
    Bbox West Long -125.325871714
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id 65b07b39-fb15-4153-952c-67871420c19e
    Harvest Source Id c0121fd9-df15-4168-ac04-42f6e36a794d
    Harvest Source Title NOS OCM
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-125.325871714, 24.5562065906], [-66.4104121711, 24.5562065906], [-66.4104121711, 48.4453282747], [-125.325871714, 48.4453282747], [-125.325871714, 24.5562065906]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1975
    Temporal Extent End 1997

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