@prefix dcat: . @prefix dct: . @prefix foaf: . @prefix gsp: . @prefix locn: . @prefix vcard: . @prefix xsd: . a dcat:Dataset ; dct:description "This dataset represents data derived from the NLCD dataset and the National Hydrography Dataset version 2.1(NHDPlusV2) (see Data Sources for links to NHDPlusV2 data and NLCD). Attributes were calculated for every local NHDPlusV2 catchment and accumulated watershed to provide watershed-level metrics for classes within the NLCD. This data set is derived from the NLCD raster composed of 16 of the modified Anderson land cover classes (categorical data type) for the conterminous USA (excluding the four Alaska-specific land cover classes). Additional agriculture on slope metrics were derived using slope based on National elevation DEMs delivered with NHDplusV2 for agriculture NLCD classes. The NLCD raster was produced based on a decision-tree classification of 2001, 2004, 2006, 2008, 2011, 2013, 2016, and 2019 Landsat satellite data (see Data Structure and Attribute Information for a description of each metric). This dataset will include additional years as they become available." ; dct:identifier "E6436B49-3888-476D-8F2E-9415FBCCF850" ; dct:issued "2015-04-23"^^xsd:date ; dct:language "{en-US}" ; dct:modified "2023-11-13"^^xsd:date ; dct:publisher ; dct:spatial [ a dct:Location ; locn:geometry "POLYGON ((-125.0000 24.5000, -125.0000 49.5000, -66.5000 49.5000, -66.5000 24.5000, -125.0000 24.5000))"^^gsp:wktLiteral ] ; dct:title "The StreamCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: National Land Cover Database" ; dcat:contactPoint [ a vcard:Organization ; vcard:fn "U.S. Environmental Protection Agency, Office of Research and Development (ORD), Center for Public Health and Environmental Assessment (CPHEA), Pacific Ecological Systems Division (PESD), Marc Weber" ; vcard:hasEmail ] ; dcat:distribution , ; dcat:keyword "AmeriGEO", "AmeriGEOSS", "CKAN", "GEO", "GEOSS", "National", "North America", "United States", "alabama", "arizona", "arkansas", "california", "colorado", "connecticut", "delaware", "district-of-columbia", "ecosystem", "environment", "florida", "georgia", "idaho", "illinois", "indiana", "inlandwaters", "iowa", "kansas", "kentucky", "louisiana", "maine", "maryland", "massachusetts", "michigan", "minnesota", "mississippi", "missouri", "modeling", "monitoring", "montana", "natural-resources", "nebraska", "nevada", "new-hampshire", "new-jersey", "new-mexico", "new-york", "north-carolina", "north-dakota", "ohio", "oklahoma", "oregon", "pennsylvania", "rhode-island", "south-carolina", "south-dakota", "surface-water", "tennessee", "texas", "united-states", "united-states-of-america", "usa", "utah", "vermont", "virginia", "washington", "west-virginia", "wisconsin", "wyoming" ; dcat:theme <%7Benvironment%7D> . a dcat:Distribution ; dct:description "This dataset represents data derived from the NLCD dataset and the National Hydrography Dataset version 2.1(NHDPlusV2) (see Data Sources for links to NHDPlusV2 data and NLCD). Attributes were calculated for every local NHDPlusV2 catchment and accumulated watershed to provide watershed-level metrics for classes within the NLCD. This data set is derived from the NLCD raster composed of 16 of the modified Anderson land cover classes (categorical data type) for the conterminous USA (excluding the four Alaska-specific land cover classes). Additional agriculture on slope metrics were derived using slope based on National elevation DEMs delivered with NHDplusV2 for agriculture NLCD classes. The NLCD raster was produced based on a decision-tree classification of 2001, 2004, 2006, 2008, 2011, 2013, 2016, and 2019 Landsat satellite data (see Data Structure and Attribute Information for a description of each metric). This dataset will include additional years as they become available." ; dct:format "Comma-Separated Values (.csv)" ; dct:issued "2025-02-04T14:44:27.946494"^^xsd:dateTime ; dct:modified "2025-09-24T01:20:52.320365"^^xsd:dateTime ; dct:title "National Land Cover Database" ; dcat:accessURL ; dcat:mediaType "text/csv" . a dcat:Distribution ; dct:description """StreamCat currently contains over 600 metrics that include local catchment (Cat), watershed (Ws), and special metrics. The special metrics were derived through modeling or by combining other StreamCat metrics. These variables include predicted water temperature, predicted biological condition, and the indexes of catchment and watershed integrity. See Geospatial Framework and Terms below for definitions of catchment and watershed as used with the StreamCat Dataset. These metrics are available for ~2.65 million stream segments and their associated catchments across the conterminous US. StreamCat metrics represent both natural (e.g., soils and geology) and anthropogenic (e.g, urban areas and agriculture) landscape information.""" ; dct:format "API" ; dct:issued "2023-10-03T20:25:57.256927"^^xsd:dateTime ; dct:modified "2025-09-24T01:20:52.319367"^^xsd:dateTime ; dct:title "StreamCat Dataset" ; dcat:accessURL . a foaf:Agent ; foaf:name "US Migrating" .