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Draft 2026 Fire Frequency Blueprint Indicator Version 2

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US Fish and Wildlife Service Open Data2026-03-28 收录
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<div style='background-color:rgb(255, 255, 255); color:rgb(0, 0, 0); font-family:&quot;Segoe UI&quot;, &quot;Segoe UI Web&quot;, Arial, Verdana, sans-serif; font-size:12px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; margin:0px; padding:0px; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:rgb(102, 102, 102); font-kerning:none; font-style:normal; margin:16px 0px 5.33333px; padding:0px; text-align:left; text-indent:0px;'><span style='color:rgb(102,102,102); font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:12pt;'><span style='font-variant-ligatures:none !important; line-height:19.425px; margin:0px; padding:0px;'><strong>Input Data</strong></span><span style='line-height:19.425px; margin:0px; padding:0px;'><strong>&nbsp;</strong></span></span></p></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin-bottom:0px; margin-right:0px; margin-top:0px; padding:0px; text-align:left; text-indent:0px;'><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://secas-fws.hub.arcgis.com/maps/0b3e3940763a4e3aae7647b0fe4c31e4/about' rel='nofollow ugc noopener noreferrer'>Southeast Blueprint 2025 extent</a><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://www.sciencebase.gov/catalog/item/6810c1a4d4be022940554075' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(5,99,193); font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><u>2024 Annual National Land Cover Database</u></span></span></a><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> (NLCD): Land cover collection 1.1</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://secas-fws.hub.arcgis.com/maps/fws::floodplain-inundation-southeast-blueprint-indicator/about' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(5,99,193); font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><u>Floodplain Inundation</u></span></span></a><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> (Southeast Conservation Blueprint Indicator)</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>U.S. Geological Survey (USGS) </span></span><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://www.sciencebase.gov/catalog/item/6244bbeed34e21f8276030bf' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(5,99,193); font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><u>Contemporary fire history metrics for the conterminous United States (1984-2024)</u></span></span></a><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> (ver. 4.0, March 2025)</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://landfire.gov/bps.php' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(5,99,193); font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><u>2020 LANDFIRE Biophysical Settings</u></span></span></a><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> (BPS) [LF 2.2.0]; </span></span><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://landfire.gov/data/FullExtentDownloads' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(5,99,193); font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><u>access the data</u></span></span></a><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:rgb(102, 102, 102); font-kerning:none; font-style:normal; margin:16px 0px 5.33333px; padding:0px; text-align:left; text-indent:0px;'><span style='color:rgb(102,102,102); font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:12pt;'><span style='font-variant-ligatures:none !important; line-height:19.425px; margin:0px; padding:0px;'><strong>Mapping Steps</strong></span><span style='line-height:19.425px; margin:0px; padding:0px;'><strong>&nbsp;</strong></span></span></p></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Begin with current departure from the historical fire regime. Add 1 to the LANDFIRE BPS historical fire return interval (FRI_ALLFIR). We add 1 because historical fire return intervals are an average, so a departure of only one year isn’t a significant variation for most Southeastern ecosystems. Now test whether the USGS “time since last burn” metric (conus_1984_2024_TSLB.tif) is greater than the historic fire interval plus 1. For example, if an area is historically supposed to burn every 3 years, and was last burned 2 years ago, the time since last burn of 2 would be less than the historical fire interval of 3 plus 1.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Classify as zero any pixel where the historical fire return interval is &gt;20 years. These pixels receive the lowest indicator score because regular fire is less important in the function of these ecosystems and they are therefore not the focus of this indicator.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Combine the current departure from historical fire regime calculated above with fire frequency from the USGS data (conus_1984_2024_FRQ) to generate the indicator categories as shown below. While the previous step assesses whether an area currently matches its historical fire regime, this step considers whether there were also fires in in the recent past (between 1984 and 2024).</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div></div><div style='background-color:rgb(255, 255, 255); color:rgb(0, 0, 0); font-family:&quot;Segoe UI&quot;, &quot;Segoe UI Web&quot;, Arial, Verdana, sans-serif; font-size:12px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; margin:0px; padding:0px; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Rebuild the 2024 NLCD raster attribute table and calculate statistics. This fixes ESRI software problems with reclassifying based on land cover types.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Reclassify to a value of 0 the burned areas that are most likely to be false positives.&nbsp;</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Assign a value of 0 to pixels classified in the 2024 NLCD as one of the following landcover types: Open water (11), all urban (21, 22, 23, 24), barren (31), and cultivated crops (82). Fire in these pixels was often either not natural or likely misclassified. Clusters of pixels in barren landcover were often industrial sites and quarries.&nbsp;</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Assign a value of 0 to floodplain inundation indicator categories with likely misclassifications: “2 = inundation index of 91-100 (persistent inundation)”, “3 = inundation index of 6-20 (regular inundation)”, and “4 = inundation index of 21-90 (frequent inundation)”. Inundated vegetation is often misclassified as burned area since they have similar spectral signatures in remote sensing.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>As a final step, clip to the spatial extent of Southeast Blueprint 2026.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'>&nbsp;</p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:rgb(102, 102, 102); font-kerning:none; font-weight:normal; margin:16px 0px 5.33333px; padding:0px; text-align:left; text-indent:0px;'><span style='color:rgb(102,102,102); font-family:&quot;Source Sans Pro SemiBold&quot;, &quot;Source Sans Pro SemiBold_EmbeddedFont&quot;, &quot;Source Sans Pro SemiBold_MSFontService&quot;, sans-serif; font-size:11pt;'><i><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Final indicator values</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></i></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 8px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Indicator values are assigned as follows:</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>5 = Currently in historical fire regime and 1+ other fire from 1984-2024&nbsp;</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>4 = Currently in historical fire regime but no other fire from 1984-2024</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>3 = Currently not in historical fire regime but 2+ fires from 1984-2024&nbsp;</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>2 = Currently not in historical fire regime but 1 fire from 1984-2024</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>1 = Currently not in historical fire regime and no fire from 1984-2024&nbsp;</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>0 = Urban, row crop, or not a fire-adapted ecosystem (&gt;20-year fire regime)</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:rgb(102, 102, 102); font-kerning:none; font-style:normal; margin:16px 0px 5.33333px; padding:0px; text-align:left; text-indent:0px;'><span style='color:rgb(102,102,102); font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:12pt;'><span style='font-variant-ligatures:none !important; line-height:19.425px; margin:0px; padding:0px;'><strong>Known Issues</strong></span><span style='line-height:19.425px; margin:0px; padding:0px;'><strong>&nbsp;</strong></span></span></p></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>This indicator does not include fires less than 10 acre. 10 acres is the minimum mapping unit in the fire history metric data.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>The Landsat-based fire history metrics overestimate fire frequency in open areas with wet soils. Wet soils can be much darker than dry soils and may be misclassified as burned areas. This misclassification was improved by removing areas classified as cultivated crops. A mask built on floodplain inundation frequency was also used to reduce misclassifications.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div></div><div style='background-color:rgb(255, 255, 255); color:rgb(0, 0, 0); font-family:&quot;Segoe UI&quot;, &quot;Segoe UI Web&quot;, Arial, Verdana, sans-serif; font-size:12px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; margin:0px; padding:0px; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:&quot;Source Sans Pro&quot;, &quot;Source Sans Pro_EmbeddedFont&quot;, &quot;Source Sans Pro_MSFontService&quot;, sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>The Landsat-based fire history metrics underestimate fire frequency in places with major impediments to burned area detection/mapping. Impediments include rapid green-up following a burn, cloud cover and shadows obscuring burn signatures, difficulty detecting or differentiating a low intensity burn signature beneath tree canopies, and the satellite product resolution often being too coarse to capture fine-scale differences or small burns.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'>&nbsp;</span></span></p></li></ul></div></div>
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