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The number of days per calendar year that exceed 90 degrees Fahrenheit predicted to occur in the 2070–2099 timeframe, based on climate projections from RCP 4.5 |
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The number of days per calendar year that exceed 90 degrees Fahrenheit predicted to occur in the 2070–2099 timeframe, based on climate projections from RCP 4.5 |
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Chad Delany, RedCastle Resources, USDA Forest Service, Geospatial Technology & Applications Center (GTAC)
Charles H. Luce, USDA Forest Service, Rocky Mountain Research Station
Nathan Walker, USDA Forest Service, Office of Sustainability and Climate |
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<DIV STYLE="text-align:Left;font-size:12pt"><DIV><DIV><P><SPAN>The number of days above 90 degrees Fahrenheit was masked to federal ownership (Forest Service and BLM). The mean value of the number of days above 90 degrees Fahrenheit for each time period and climatic pathway for every fireshed was calculated. The climatic pathways used were RCP 4.5 and RCP 8.5. The time periods were historic based on observations (1970 -1999) and current (2010 - 2039), mid-century (2040 - 2069), and end-century (2070-2099) based on modelled results. Quintile breakpoints and histograms were calculated for all variables, including absolute change and percent change, across the entire time period and multiple climatic pathways. The squared SE acres for Mature and Old Growth were calculated for all layers, time periods, and pathways. Subject Matter Experts decided on appropriate breakpoints for the 5 classes (Very Low, Low, Moderate, High, Very High) after consulting the quintile breakpoints and histograms. All layers were classified according to those breakpoints. The total acres for Mature and Old Growth forests were calculated by class, time step, and climatic pathway for all layers. </SPAN></P><P><SPAN /></P><P><SPAN>Spatial Extent: CONUS</SPAN></P><P><SPAN>Units: "Categories of days: </SPAN></P><P><SPAN>Very Low (<1 day/year)</SPAN></P><P><SPAN>Low (1-7 days/year)</SPAN></P><P><SPAN>Moderate (7-31 days/year)</SPAN></P><P><SPAN>High (31-62 days/year)</SPAN></P><P><SPAN>Very High (>62 days/year)"</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><P><SPAN>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.</SPAN></P></DIV></DIV> |
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The Number of Days above 90 Degrees Fahrenheit Summarized by Fireshed for RCP 4.5 & RCP 8.5 Climatic Pathways for the Historic, Current, Mid-Century, and End-Century Time Periods |
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["Climate Risk Viewer","US Forest Service","USFS","Office of Sustainability and Climate","OSC","CRV","Climate Change","Forest"] |
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en-US |
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150000000 |
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