Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Attribution for these Virginia parcels is limited to locality identification and parcel id. Tax parcel boundaries have not been edge-matched across municipal boundaries. The boundaries are intended for cartographic use and spatial analysis only, and not for use as legal descriptions or property surveys. Not all localities within the Commonwealth of Virginia have a digital record for parcel geography.</SPAN></P></DIV></DIV></DIV>
Description: The USGS Protected Areas Database of the United States (PAD-US) is the nation's inventory of protected areas, including public land and voluntarily provided private protected areas, identified as an A-16 National Geospatial Data Asset in the Cadastre Theme (https://communities.geoplatform.gov/ngda-cadastre/). The PAD-US is an ongoing project with several published versions of a spatial database including areas dedicated to the preservation of biological diversity, and other natural (including extraction), recreational, or cultural uses, managed for these purposes through legal or other effective means. The database was originally designed to support biodiversity assessments; however, its scope expanded in recent years to include all public and nonprofit lands and waters. Most are public lands owned in fee; however, long-term easements, leases, agreements, Congressional (e.g. 'Wilderness Area'), Executive (e.g. 'National Monument'), and administrative designations (e.g. 'Area of Critical Environmental Concern') documented in agency management plans are also included. The PAD-US strives to be a complete inventory of public land and other protected areas, compiling “best available” data provided by managing agencies and organizations. The PAD-US geodatabase maps and describes areas with over twenty-five attributes in nine feature classes to support data management, queries, web mapping services, and analyses. This PAD-US Version 2.0 dataset includes a variety of updates and changes from the previous Version 1.4 dataset. The following list summarizes major updates and changes: 1) Expanded database structure with new layers: the geodatabase feature class structure now includes nine feature classes separating fee owned lands, conservation (and other) easements, management designations overlapping fee lands, marine areas, proclamation boundaries and various 'Combined' feature classes (e.g. 'Fee' + 'Easement' + 'Designation' feature classes); 2) Major update of the Federal estate including data from 8 agencies, developed in collaboration with the Federal Geographic Data Committee (FGDC) Federal Lands Working Group (FLWG, https://communities.geoplatform.gov/ngda-govunits/federal-lands-workgroup/); 3) Major updates to 30 States and limited additions to 16 other States; 4) Integration of The Nature Conservancy's (TNC) Secured Lands geodatabase; 5) Integration of Ducks Unlimited's (DU) Conservation and Recreation Lands (CARL) database; 6) Integration of The Trust for Public Land's (TPL) Conservation Almanac database; 7) The Nature Conservancy (TNC) Lands database update: the national source of lands owned in fee or managed by TNC; 8) National Conservation Easement Database (NCED) update: complete update of non-sensitive (suitable for publication in the public domain) easements; 9) Complete National Marine Protected Areas (MPA) update: from the NOAA MPA Inventory, including conservation measure ('GAP Status Code', 'IUCN Category') review by NOAA; 10) First integration of Bureau of Energy Ocean Management (BOEM) managed marine lands: BOEM submitted Outer Continental Shelf Area lands managed for natural resources (minerals, oil and gas), a significant and new addition to PAD-US; 11) Fee boundary overlap assessment: topology overlaps in the PAD-US 2.0 'Fee' feature class have been identified and are available for user and data-steward reference (See Logical_Consistency_Report Section). For more information regarding the PAD-US dataset please visit, https://gapanalysis.usgs.gov/padus/. For more information about data aggregation please review the “Data Manual for PAD-US” available at https://gapanalysis.usgs.gov/padus/data/manual/ .
Copyright Text: U.S. Geological Survey, Gap Analysis Project (GAP), May 2018, Protected Areas Database of the United States (PADUS), Version 2.0 Combined Feature Class
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>See complete documentation here: http://gis.cdc.gov/grasp/svi/SVI2018Documentation.pdf. For additional questions, contact the SVI Lead at SVI_Coordinator@cdc.gov.</SPAN></P></DIV></DIV></DIV>
Copyright Text: CDC/ATSDR/Division of Toxicology and Human Health Sciences/Geospatial Research, Analysis & Services Program
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>See complete documentation here: http://gis.cdc.gov/grasp/svi/SVI2018Documentation.pdf. For additional questions, contact the SVI Lead at SVI_Coordinator@cdc.gov.</SPAN></P></DIV></DIV></DIV>
Copyright Text: CDC/ATSDR/Division of Toxicology and Human Health Sciences/Geospatial Research, Analysis & Services Program
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>See complete documentation here: http://gis.cdc.gov/grasp/svi/SVI2018Documentation.pdf. For additional questions, contact the SVI Lead at SVI_Coordinator@cdc.gov.</SPAN></P></DIV></DIV></DIV>
Copyright Text: CDC/ATSDR/Division of Toxicology and Human Health Sciences/Geospatial Research, Analysis & Services Program
Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>The raster-scale cumulative prioritization represents the cumulative prioritization value of all metrics. The raster cell values of the seven metric rasters included in this geodatabase were summed using equal weights except for karst transmissivity. Karst transmissivity received a weight of 0.5 (or 50 percent) because the metric tended to dominate all other values where it was present. </SPAN></P><P><SPAN>The raster was normalized on a scale from 0 to 100, with a value of 100 indicating the highest priority for conservation. The “Geomorphometry & Gradient Metrics Toolbox” developed by Evans and Cushman (2014) was used for the normalization procedure. The toolbox is available at https://github.com/jeffreyevans/GradientMetrics. Accessed 3/9/2020.</SPAN></P></DIV></DIV>
Copyright Text: Berkeley County, DC Water, Fairfax Water, Frederick County, Leesburg, Loudoun Water, Washington Aqueduct, Washington Suburban Sanitary Commission (WSSC), US Endowment for Forestry and Communities, and Interstate Commission on the Potomac River Basin (ICPRB).
Description: <DIV STYLE="text-align:Left;"><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>Our method to identifying Resilient and Connected Landscapes sites had several steps: </SPAN></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>First, we started with the map of resilient sites (see resilient sites website for more information, maps, and data https://www.conservationgateway.org/ConservationByGeography/NorthAmerica/UnitedStates/edc/reportsdata/terrestrial/resilience/resilientland/Pages/default.aspx)</SPAN></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>Next, we mapped areas that were critical flow zones and narrow climate corridors.</SPAN></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>Next, we mapped areas resilient areas that had confirmed rare species, exemplary natural communities, and representative geophysical settings. </SPAN></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>Finally, we combined these datasets to prioritize a subset of resilient sites using criteria based on flow and diversity, and then to identify critical between-site linkages that both connected essential features and corresponded to areas of concentrated flow. </SPAN></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>The results of this assessment may inform a variety of conservation strategies aimed at influencing decisions or maximizing the natural benefits and services provided by nature while simultaneously sustaining its diversity and resilience. </SPAN></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>If you have questions the full report is at "Resilient and Connected Landscapes for Terrestrial Conservation” </SPAN></SPAN><A href="http://nature.ly/TNCResilience"><SPAN><SPAN>http://nature.ly/TNCResilience</SPAN></SPAN></A></P></DIV>
Copyright Text: Eastern Conservation Science, The Nature Conservancy. December 2016