48224 R-Factor_metadata_for_CONUS Data Set Published / External 37234 OpenNSPECT Project Completed 2013-12-26 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. These data are represented in raster format for use with the Open source Nonpoint Source Pollution and Erosion Comparison Tool (OpenNSPECT). 10840 Renard, K.G., Foster, C.R., Weesies, G.A., McCool, D.K., Yoder, D.C., (1997). Predicting Soil Erosion by Water: A Guide to Conservation Planning with the Revised Universal Soil Loss Equation (RUSLE). US Department of Agriculture, Agriculture Handbook Number 703, Government Printing Office, Washington, DC, p.47-51. These data are derived from isoerodent maps published in the Agriculture Handbook number 703 (Renard et al., 1997). Renard, K.G., Foster, C.R., Weesies, G.A., McCool, D.K., Yoder, D.C., (1997). Predicting Soil Erosion by Water: A Guide to Conservation Planning with the Revised Universal Soil Loss Equation (RUSLE). US Department of Agriculture, Agriculture Handbook Number 703, Government Printing Office, Washington, DC, p. 47-51. Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > AGRICULTURE > SOILS > SOIL EROSION Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > EROSION Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER PROCESSES/MEASUREMENTS > RUNOFF Theme ISO 19115 Topic Category climatologyMeteorologyAtmosphere Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA Theme Environmental Monitoring Theme Erosion Theme R-Factor Theme RUSLE Theme RUSLE2 Theme Rainfall-Runoff Erosivity Theme Revised Universal Soil Loss Equation Spatial Coterminous United States Office for Coastal Management Charleston SC Data Set None Planned Map (digital) Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners. Acknowledgement of the NOAA Office for Coastal Management and Renard et al. (1997) would be appreciated in products derived from these data. 49185 R-Factor map for the U.S. Published / External Completed Coterminous U.S. states | Description Source: unknown Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script. 1 Rainfall-runoff Factor VARCHAR No No Active R-Factor is an erosivity index value for rainfall and runoff | Description Source: Renard, K.G., Foster, C.R., Weesies, G.A., McCool, D.K., Yoder, D.C., (1997). Predicting Soil Erosion by Water: A Guide to Conservation Planning with the Revised Universal Soil Loss Equation (RUSLE). US Department of Agriculture, Agriculture Handbook Number 703, Government Printing Office, Washington, DC, p. 47-51. 0 Background: This class contains no data. | 1 R-Factor: Erosivity index value for rainfall and runoff. | Data Steward 2013-12-26 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Distributor 2013-12-26 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Metadata Contact 2013-12-26 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Point of Contact 2013-12-26 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Ground Condition -125.325871714 -66.4104121711 48.4453282747 24.5562065906 Range 1975 1997 Yes Unclassified None None https://coast.noaa.gov/data/digitalcoast/zip/R-Factor-CONUS.zip 2013-12-26 Organization NOAA Office for Coastal Management https://coast.noaa.gov/digitalcoast/tools/qnspect.html QNSPECT Online Resource 2016-05-23 Date that the source FGDC record was last modified. 2017-11-14 Converted from FGDC Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. 2018-02-08 Partial upload of Positional Accuracy fields only. MapWindow GIS 8.x The cell values in this product represent R-Factor which is an erosivity index for rainfall and runoff. The units are (hundreds ft-tonf-in)/(ac-h-yr). This map is an approximation of spatial rainfall-runoff values None Cloud Cover: 0 All pixels within the coterminous U.S. boundary contain R-Factor values. Tests for logical consistency indicate that all row and column positions in the selected latitude/longitude window contain data. Conversion and integration with vector files indicates that all positions are consistent with earth coordinates covering the same area. R-Factor for the Coterminous United States NOAA, National Ocean Service, Office for Coastal Management Range 1975 1997 250000000 Derived from isoerodent maps (Renard et al., 1997) | Source Geospatial Form: raster digital data | Type of Source Media: disc 1 The rainfall-funoff erosivity factor was estimated from the R-Factor maps for the coterminous U.S. given in the Agriculture Handbook number 703. A line shapefile approximation of the printed map was generated via "heads-up" digitizing. The final raster map was produced using the Topo to Raster command in ESRI ArcGIS 10.x. 2013-01-01T00:00:00 49185 Entity gov.noaa.nmfs.inport:48224 Anne Ball 2017-11-14T14:28:11 Brianna Key 2024-02-20T21:54:47 2018-02-08 Office for Coastal Management OCM 1002 Public No No 2018-02-08 1 Year 2019-02-08