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<p style='color:rgb(0, 0, 0); font-family:Calibri, sans-serif; font-size:11pt;'><strong>Delete this layer when IFTDSS URL Update Ticket is completed: </strong><a target='_blank' href='https://iftdss.atlassian.net/browse/IFT-8322' rel='nofollow ugc noopener noreferrer'><strong>https://iftdss.atlassian.net/browse/IFT-8322</strong></a><strong> </strong></p><p style='color:rgb(0, 0, 0); font-family:Calibri, sans-serif; font-size:11pt;'><span style='background-color:transparent; font-size:11pt;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'><strong>Overview</strong></span></span></p><p style='color:rgb(0, 0, 0); font-family:Calibri, sans-serif; font-size:11pt;'><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>Communities is part of the Highly Valued Resource or Asset (HVRA) data used in the National Wildfire Risk Assessment for Forest Service Lands (NaWRA, Dillon 2020). Community density classes can be used as Sub-HVRAs within the Map Values, Exposure Analysis and Quantitative Wildfire Risk Assessment functionality within the Interagency Fuel Treatment Decision Support System (IFTDSS, </span></span><a target='_blank' href='https://iftdss.firenet.gov/' rel='nofollow ugc noopener noreferrer'><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>https://iftdss.firenet.gov</span></span></a><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>).</span></span></p><p style='color:rgb(0, 0, 0); font-family:Calibri, sans-serif; font-size:11pt;'><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'><strong>Data Details</strong></span></span></p><p style='color:rgb(0, 0, 0); font-family:Calibri, sans-serif; font-size:11pt;'><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>Communities represents population density classes based on Residentially Developed Populated Areas (RDPA, Haas et al. 2013). RDPA was developed using the LandScan USATM population data (Oak Ridge National Laboratory, 2008) with some additional smoothing to conservatively identify pixels that were most likely to have people and residential structures located within them (Haas et al. 2013). </span></span></p><p style='color:rgb(0, 0, 0); font-family:Calibri, sans-serif; font-size:11pt;'><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>RDPA was summarized into three population density classes for use in IFTDSS. Classification used similar population density ranges to the Federal Register Wildland Urban Interface categorization:</span></span></p><ul><li><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>Low density: >0-28 people per square mile</span></span><br /> </li><li><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>Medium density: >28-250 people per square mile</span></span><br /> </li><li><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>High density: > 250 people per square mile</span></span><br /> </li></ul><p style='color:rgb(0, 0, 0); font-family:Calibri, sans-serif; font-size:11pt;'><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'><strong>Citations</strong></span></span></p><p><span style='background-color:transparent; color:#000000; font-size:small;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>Dillon, Gregory K. 2020. Results and application of the National Wildfire Risk Assessment. In: Hood, Sharon M.; Drury, Stacy; Steelman, Toddi; and Steffens, Ron, eds. Proceedings of the Fire Continuum—Preparing for the future of wildland fire; 2018 May 21-24; Missoula, MT. Proceedings RMRS-P-78. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. Pgs 252-257</span></span><span style='background-color:transparent; color:#2f4f4f; font-size:small;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>.</span></span></p><p style='color:rgb(0, 0, 0); font-family:Calibri, sans-serif; font-size:11pt;'><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>Haas, Jessica R.; Calkin, David E.; Thompson, Matthew P. 2013. A national approac</span></span><span style='background-color:transparent; color:rgb(0,0,0);'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'> </span></span><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>h for integrating wildfire simulation modeling into Wildland Urban Interface risk assessments within the United States. Landscape and Urban Planning. 119: 44-53. </span></span></p><p style='color:rgb(0, 0, 0); font-family:Calibri, sans-serif; font-size:11pt;'><span style='background-color:transparent;'><span style='font-variant-east-asian:normal; font-variant-numeric:normal;'>Oak Ridge National Laboratory (2008). LandScan 2008 High Resolution Population Distribution Model. L. UT-Battelle, editor., Oak Ridge, TN</span></span></p><p><br /> </p>
IFTDSS
This data layer represents population density classes based on Residentially Developed Populated Areas (Haas et al. 2013). This dataset includes coverage for the conterminous United States and Alaska.
Haas, J.R., D.E. Calkin, M.P. Thompson and M.A. Finney. 2013. A consistent national approach for identifying the risk of wildland fire to populated areas in the United States. Landscape and Urban Planning. 119: 44-53
<span style='font-family: "Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size: 16px;'>The USDA Forest Service makes no warranty, expressed or implied, including the warranties of merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy, reliability, completeness or utility of these geospatial data, or for the improper or incorrect use of these geospatial data. These geospatial data and related maps or graphics are not legal documents and are not intended to be used as such. The data and maps may not be used to determine title, ownership, legal descriptions or boundaries, legal jurisdiction, or restrictions that may be in place on either public or private land. Natural hazards may or may not be depicted on the data and maps, and land users should exercise due caution. The data are dynamic and may change over time. The user is responsible to verify the limitations of the geospatial data and to use the data accordingly. As a work of the United States Government, these data are within the public domain of the United States. Additionally, The U.S. Forest Service waives copyright and related rights in the work worldwide through the CC0 1.0 Universal Public Domain Dedication (which can be found at https://creativecommons.org/publicdomain/zero/1.0/).</span>
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