{988BD6D1-CD27-4D67-BF44-F9AEDD83D9B8} eng; USA utf8 dataset EnviroAtlas Coordinator US Environmental Protection Agency, Research Triangle Park ORD/NERL/EnviroAtlas 000-000-0000 109 TW Alexander Dr. Research Triangle Park NC 27711 EnviroAtlas@epa.gov pointOfContact 2017-05-23 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) EnviroAtlas - Dasymetric Population in the Conterminous United States Web Service 2013-05-30 publication U.S. EPA Office of Research & Development (ORD) - National Exposure Research Laboratory (NERL) Research Triangle Park NC publisher US Environmental Protection Agency (US EPA) originator This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). This EnviroAtlas dataset intelligently reallocates 2010 population from census blocks to 30 meter pixels based on land cover and slope. Used for metrics that require population to be spatially allocated at a pixel level, primarily in the urban section of the atlas. Additional descriptive information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets). The overall goal of EnviroAtlas is to employ and develop the best available science to map indicators of ecosystem services production, demand, and drivers for the nation. completed EnviroAtlas Coordinator US Environmental Protection Agency, Research Triangle Park ORD/NERL/EnviroAtlas 000-000-0000 109 TW Alexander Dr. Research Triangle Park NC 27711 EnviroAtlas@epa.gov pointOfContact asNeeded Ecosystem Environment theme EPA GIS Keyword Thesaurus Ecosystem Services EnviroAtlas Environment Environmental Atlas Human Modeling theme EnviroAtlas Alabama Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas United States Utah Vermont Virginia Washington Washington DC West Virginia Wisconsin Wyoming Austin, TX Detroit, MI Durham, NC Fresno, CA Milwaukee, WI Phoenix, AZ Portland, ME Portland, OR Tampa Bay, FL place None https://edg.epa.gov/EPA_Data_License.htm otherRestrictions Use Constraints: None. Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated. otherRestrictions Access Constraints: None. PUBLIC FIPS Pub 199 Standard Technical Controls eng; USA environment -128.02839229 -65.20336449 22.7348894 51.6773602 2010-01-01 Used NLCD 2010, NED (30m) and 2010 census block population true Entity and Attribute Information Entity and Attribute Overview: A comprehensive list of metric creation steps is included in the Processing Steps. The Dasymetric Toolbox for ArcGIS v10 used to create these data can be downloaded from https://www.epa.gov/enviroatlas/dasymetric-toolbox. Entity and Attribute Detail Citation: https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets EnviroAtlas Coordinator US Environmental Protection Agency, Research Triangle Park ORD/NERL/EnviroAtlas 000-000-0000 109 TW Alexander Dr. Research Triangle Park NC 27711 EnviroAtlas@epa.gov distributor https://edg.epa.gov/data/Public/ORD/EnviroAtlas/National download Download The URL providing direct access to the downloadable dataset. download https://enviroatlas.epa.gov/arcgis/rest/services/Supplemental/Dasymetric_WMerc/MapServer ESRI:ArcGIS API The endpoint of a web service to access the dataset (REST endpoint, WMS GetCapabilities URL, or a SOAP WSDL endpoint). webMapService https://www.epa.gov/enviroatlas/enviroatlas-data information Documentation URL for accessing related documents such as data dictionary, technical information about a dataset, developer documentation, etc. information https://www.epa.gov/enviroatlas information Home Page Alternative landing page used to redirect user to a contextual, Agency-hosted "homepage" for the Dataset or API information dataset Horizontal Positional Accuracy Report Data were collected using methods that have unknown accuracy (EPA National Geospatial Data Policy [NGDP] Accuracy Tier 10). For more information, please see EPA's NGDP at https://www.epa.gov/geospatial/geospatial-policies-and-standards Features represented have not been tested for completeness Features represented have not been tested for completeness Tests for integrity have not been performed. This lineage was generated by the FGDC CSDGM to 19139 transformation Reclassify NLCD 2006 land cover - 11, 12, 31, 90 and 95 (nodata), 21 (21), 22 (22), 23 (23), 24 (24), 41, 42, 43, 52, 71, 81, 82 (1) 2011-09-30T00:00:00 Use 3x3 majority filter to replace class 21 with class 1 to eliminate some rural roads 2011-09-30T00:00:00 Mask slopes > 25% using 30 meter NED 2011-09-30T00:00:00 Use the dasymetric tools for each state. Washington, D.C. was combined with Maryland to ensure adequate samples. Rhode Island was combined with Massachussetts for the same reason. Density for class 1 was set to 0.001 to force most population to urban classes (21-24) 2011-09-30T00:00:00 Create raster metadata. 2012-05-30T00:00:00 Publish web service. 2012-05-30T00:00:00 Create web service metadata. 2012-05-30T00:00:00 unknown 2021-05-23 This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2024-02-09T11:11:00 version of the FGDC CSDGM to ISO 19139 transform. EnviroAtlas Coordinator US Environmental Protection Agency, Research Triangle Park ORD/NERL/EnviroAtlas 000-000-0000 109 TW Alexander Dr. Research Triangle Park NC 27711 EnviroAtlas@epa.gov pointOfContact