297E7BD1-0932-4460-B396-0F92A65B451A eng utf8 dataset dataset EnviroAtlas Coordinator U.S. Environmental Protection Agency, Office of Research and Development - Center for Public Health and Environmental Assessment (CPHEA), EnviroAtlas Geospatial Data Owner (919) 541-3832 109 T.W. Alexander Drive Research Triangle Park NC 27709 EnviroAtlas@epa.gov https://www.epa.gov/enviroatlas pointOfContact 2025-12-11 ISO 19139 Geographic Information - Metadata - Implementation Specification 2007 2 column 124236 30.000000 row 67844 30.000000 area true false -2232345.000000 344805.000000 -2232345.000000 2380125.000000 1494735.000000 2380125.000000 1494735.000000 344805.000000 -368805.000000 1362465.000000 center 4326 EPSG EnviroAtlas – 2016 forest connectivity for Alaska 2025-06-30 publication U.S. Environmental Protection Agency (US EPA) originator U.S. EPA Office of Research and Development (ORD) - Center for Public Health and Environmental Assessment (CPHEA) Research Triangle Park, NC publisher mapDigital This EnviroAtlas dataset categorizes land cover into structural elements (e.g. core, edge, branch, etc.). It depicts core areas of forest, core fragmentation, and patterns of connectivity among core patches. Forest is treated as foreground in this dataset; forest land cover classes are separated from the all other land cover classes. This dataset was produced by the US EPA to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. 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). This dataset is useful for green infrastructure applications, such as habitat suitability analyses. 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 U.S. Environmental Protection Agency, Office of Research and Development - Center for Public Health and Environmental Assessment (CPHEA), EnviroAtlas Geospatial Data Owner (919) 541-3832 109 T.W. Alexander Drive Research Triangle Park NC 27709 EnviroAtlas@epa.gov https://www.epa.gov/enviroatlas publisher asNeeded Alaska United States place EPA Place Names 2015-01-31 publication Conservation Ecology Ecosystem Environment Land Management theme EPA GIS Keyword Thesaurus 2007-11-02 publication 020:072 theme Federal Program Inventory 2013-09-16 publication Ecosystem Services EnviroAtlas Environment Environmental Atlas Green Infrastructure Habitat Land Cover theme User 2022-01-11 publication None. Please check sources, scale, accuracy, currency 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. EPA Public Domain License licenseUnrestricted https://edg.epa.gov/EPA_Data_License.html unclassified https://project-open-data.github.io/schema/#accessLevel grid eng utf8 Microsoft Windows 10 Version 10.0 (Build 22631) ; Esri ArcGIS 13.5.0.57366 true -180 180 48.338816 71.421538 2016-01-01T00:00:00 2016-12-31T00:00:00 Landscape connectivity with forest as foreground thematicClassification 1 1 Band_1 129 0 Unified Code of Units of Measure [arb'U] 8 false false false false false Raster Dataset https://enviroatlas.epa.gov/download/Forest_connectivity_AK_2016.zip download download https://enviroatlas.epa.gov/arcgis/rest/services/Rasters/Forest_connectivity_AK_2016/ImageServer ESRI:ArcGIS offlineAccess https://www.epa.gov/enviroatlas/enviroatlas-data information information https://www.epa.gov/enviroatlas information information dataset Tests for integrity have not been performed. EPA National Geospatial Data Policy Features have been reviewed by U.S. EPA EnviroAtlas Project Managers for public release. true Features represented have not been tested for completeness EPA National Geospatial Data Policy Features have been reviewed by U.S. EPA EnviroAtlas Project Managers for public release. true Reclassify NLCD 2016 Land Cover (AK) (http://www.mrlc.gov/index.php) as follows: foreground [classes 41 - Deciduous Forest, 42 - Evergreen Forest, 43 - Mixed Forest, 90 - Woody Wetlands]; background [classes 11 - Water, 12 - Perennial Ice/Snow, 21 - Developed, Open Space, 22 - Developed, Low Intensity, 23 - Developed, Medium Intensity, 24 - Developed, High Intensity, 31 - Barren Land (Rock/Sand/Clay), 51 - Dwarf Scrub, 52 - Shrub/Scrub, 71 - Grassland/Herbaceous, 72 - Sedge/Herbaceous, 73 - Lichens, 74 - Moss, 81 - Pasture/Hay, 82 - Cultivated Crops, 95 - Emergent Herbaceous Wetlands]; and nodata (255). 2025-05-01T00:00:00 Connectivity data were derived using the GUIDOS (Graphical User Interface for the Description of image Objects and their Shapes) Workbench 1.9.8 (GWB1.9.8) raster image processing toolbox, which includes the Simplified Pattern Analysis (SPA) module, a downscaled version of Morphological Spatial Pattern Analysis tool (MSPA). Run GWB1.9.8 (https://forest.jrc.ec.europa.eu/en/activities/lpa/gtb/#Download) using, using 8 neighbor connectivity, 1 pixel edge width, transition and intext on. 2025-05-01T00:00:00 2016 National Land Cover Database (NLCD) Land Cover for Alaska. Download source: https://www.mrlc.gov/downloads/sciweb1/shared/mrlc/data-bundles/NLCD_2016_Land_Cover_AK_20200724.zip asNeeded 2025-07-30