{6DD8093C-178C-4606-9004-0731974643F4} 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 2025-02-13 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) EnviroAtlas - Fresno, CA - Riparian Buffer Land Cover by Block Group 2014-07-25 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 dataset describes the percentage of different land cover types within 15- and 50-meters of hydrologically connected streams, rivers, and other water bodies within the Atlas Area. 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). The purpose of this dataset is to describe the land cover along streams, rivers, and lakes within the Atlas Area. 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 Census Block Groups Communities Drinking Water Ecosystem Services EnviroAtlas Environment Environmental Atlas Ground Water Impact Land Cover Natural Resources Riparian Surface Water Water theme EnviroAtlas California Fresno, CA 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 https://project-open-data.github.io/schema/#accessLevel Standard Technical Controls eng; USA environment -119.987249 -119.507299 36.616154 36.968864 2014-04-30 true Entity and Attribute Information Entity and Attribute Overview: For more information about EnviroAtlas data, go to https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets. This dataset describes the land cover within riparian buffers in the Atlas Area. This process was completed using python scripts. A comprehensive list of metric creation steps is included in the Processing Steps. 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://enviroatlas.epa.gov/download/FCA_metrics_Apr2020_CSV_Shapes.zip download Download The URL providing direct access to the downloadable dataset. download https://enviroatlas.epa.gov/download/FCA_metrics_Apr2020_FGDB.zip 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://enviroatlas.epa.gov/arcgis/rest/services/Communities/Community_BGmetrics/MapServer 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/enviroatlas-data 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 Begin with the High Resolution National Hydrography Dataset for California. 2014-04-30T00:00:00 Extract the Flowlines, Waterbodies, and Areas for 5-km around the EnviroAtlas community area. 2014-04-30T00:00:00 Project the Flowlines, Waterbodies, and Areas into Albers Projection. 2014-04-30T00:00:00 Clip the Flowlines, Waterbodies, and Areas to the 1-km boundary of the EnviroAtlas community area. 2014-04-30T00:00:00 Select by Attribute the Areas that are classified as Wash, Lock, Rapid, Stream/River (484, 398, 431, 460) 2014-04-30T00:00:00 Select by Attributes the Flowlines that are classified as Stream/River and Connector (460, 334) 2014-04-30T00:00:00 Select by Attributes the Flowlines that are classified as Stream/River, Connector, and Artificial Path (460, 334, 558) 2014-04-30T00:00:00 Select by Attributes the Waterbodies that are classified as Reservoir, Lake/Pond, or Ice Mass (436, 390, 378) 2014-04-30T00:00:00 Select by Location from the selected features in Areas the features that intersect with the Stream/River, Connection, Artificial Path Flowlines (hydrologically connected areas). 2014-04-30T00:00:00 Select by Location from the selected features in Waterbodies the features that intersect with the Stream/River, Connection, Artificial Path Flowlines (hydrologically connected waterbodies). 2014-04-30T00:00:00 Buffer the Hydrologically Connected Waterbodies and Areas and the Flowlines (Stream/River, Connector) by 15 meters and 50 meters. 2014-04-30T00:00:00 Merge and dissolve the 50m buffers into one shapefile. Repeat for 15m buffers. 2014-04-30T00:00:00 Extract the 1-m EnviroAtlas Land Cover to the 15- and 50-meter buffer areas. Tabulate the area of each land cover class within the 15- and 50-meter buffers for each census block group. 2014-04-30T00:00:00 Calculate the total land area of the 50m buffer (summation of all land cover areas, excluding water); calculate the area of impervious cover in the 50m buffer (Value_20); Calculate the forested area within the 50m buffer (Value_40); Calculate the vegetated area within the 50m buffer (Value_40+Value_70) 2014-04-30T00:00:00 Calculate the percentage of the block group land area that is 50-meter riparian buffer. Calculate the percentage of the total 50m riparian land area that is forested, vegetated, and impervious. 2014-04-30T00:00:00 Repeat the previous two steps for the 15m buffer. 2014-04-30T00:00:00 Create a new table to hold the block group ID, the total area of each buffer, the percentage of the block group area that is within each buffer, and the percentage of each buffer that is Impervious, Vegetated, and Forested Area. 2014-04-30T00:00:00 unknown 2029-02-13 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