{ac9dd703-9e2d-49fc-856e-96a3698c40d7} eng; USA utf8 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 2025-02-13 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) EnviroAtlas - San Diego, CA - 51m Riparian Buffer Vegetated Cover 2022-06-17 publication U.S. EPA Office of Research and Development (ORD) - Center for Public Health and Environmental Assessment (CPHEA) Research Triangle Park NC publisher US Environmental Protection Agency (US EPA) originator This EnviroAtlas dataset describes the percentage of a 51-m riparian buffer that is vegetated. In this community, vegetated land is defined as Trees & Forest, Grass & Herbaceous, Woody Wetlands, and Emergent Wetlands. There is a potential for decreased water quality in areas where the riparian buffer is less vegetated. The displayed line represents the center of the analyzed riparian buffer. The water bodies analyzed include hydrologically connected streams, rivers, connectors, reservoirs, lakes/ponds, ice masses, washes, locks, and rapids within the EnviroAtlas community area. This dataset was produced by the US EPA to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (http://enviroatlas.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 vegetated cover within a 51m riparian buffer along streams, rivers, and lakes within the EnviroAtlas Community. In combination with the Riparian Buffer Land Cover Block Group Summaries, this data can be used to assess areas within 51m riparian buffers that would benefit from additional vegetated coverage. 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 pointOfContact asNeeded Ecosystem Environment theme EPA GIS Keyword Thesaurus Communities Drinking Water Ecosystem Services EnviroAtlas Environment Environmental Atlas Ground Water Impact Land Cover Natural Resources Riparian Surface Water Water theme EnviroAtlas San Diego, CA California place None https://edg.epa.gov/EPA_Data_License.html 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 -117.596554 -116.669752 32.534156 33.503344 2014-01-01 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 vegetated area within a 51m moving window located 25.5m from a hydrologically connected water body in the EnviroAtlas Community. This procedure 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 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 distributor https://enviroatlas.epa.gov/download/SDCA_metrics_Mar2023_CSV_Shapes.zip download Download The URL providing direct access to the downloadable dataset. download https://enviroatlas.epa.gov/download/SDCA_metrics_Mar2023_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/Supplemental/RB51m_Vege_AllCommunities/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://epa.gov/geospatial/policies.html 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 2022-07-05T00:00:00 Extract the Flowlines, Waterbodies, and Areas for 5-km around the EnviroAtlas community boundary. 2022-07-05T00:00:00 Project the Flowlines, Waterbodies, and Areas into UTM Projection. 2022-07-05T00:00:00 Clip the Flowlines, Waterbodies, and Areas to the 1-km boundary of the EnviroAtlas community boundary. 2022-07-05T00:00:00 Select by Attribute the Areas that are classified as Wash, Lock, Rapid, Stream/River (484, 398, 431, 460). 2022-07-05T00:00:00 Select by Attributes the Flowlines that are classified as Stream/River, Connector, and Artificial Path (460, 334, 558). 2022-07-05T00:00:00 Select by Attributes the Flowlines that are classified as Stream/River and Connector (460, 334). 2022-07-05T00:00:00 Select by Attributes the Waterbodies that are classified as Reservoir, Lake/Pond, or Ice Mass(436, 390, 378). 2022-07-05T00:00:00 Select by Location from the selected features in Areas and Waterbodies the features that intersect with the Stream/River, Connection, Artificial Path Flowlines (hydrologically connected areas). 2022-07-05T00:00:00 Buffer the Hydrologically Connected Waterbodies and Areas and the Flowlines (Stream/River, Connector) by 7.5 meters and 25.5 meters. 2022-07-05T00:00:00 Merge and dissolve all three 7.5m buffers into one feature. Repeat for 25.5m buffers. 2022-07-05T00:00:00 Convert each set of buffer polygons (7.5m and 25.5m, separately) into a polyline that represents the analysis line in the center of each size riparian buffer. 2022-07-05T00:00:00 Reclassify the Land Cover into Binary Forest. (Trees & Forest - 40, Woody Wetlands - 91 = 1; All Else = 0) 2022-07-06T00:00:00 Reclassify the Land Cover into Binary Vegetation. (Trees & Forest - 40, Grass & Herbaceous - 70, Woody Wetlands - 91, Emergent Wetlands - 92 = 1; All Else = 0) 2022-07-06T00:00:00 Reclassify the Land Cover into Binary Water. (Water - 10 = 1; All Else = 0). 2022-07-06T00:00:00 Run Focal Statistics on the Vegetation binary with rectangular neighborhoods of 51x51 cells. 2022-07-05T00:00:00 Run Focal Statistics on the Forest binary with rectangular neighborhoods of 51x51 cells. 2022-07-05T00:00:00 Run Focal Statistics on the Water binary with rectangular neighborhoods of 51x51 cells. 2022-07-05T00:00:00 Create a land area raster for the 51m moving windows by subtracting the water moving window rasters from 2601, respectively. 2022-07-05T00:00:00 Divide the Vegetated Land moving window raster by the new land area raster. 2022-07-05T00:00:00 Multiply the ratio raster by 100 to obtain a percent Vegetated Land raster. 2022-06-17T00:00:00 Extract the percent Vegetated Land raster along the 51m analysis line 2022-06-17T00:00:00 Reclassify the extracted raster into percentage classes 0-20:20; 20-40:40; 40-60:60; 60-80:80; 80-100:100. 2022-06-17T00:00:00 Convert the reclassified rasters into polygons without simplifying. 2022-06-17T00:00:00 Spatially join the polygons with the analysis line to add percent class breaks along the analysis line. 2022-06-17T00:00:00 Clip the new analysis lines to the EnviroAtlas community boundary. 2022-06-17T00:00:00 Project lines into Albers. 2022-06-17T00:00:00 Export the analysis lines to a geodatabase for display in EnviroAtlas. 2022-06-17T00:00:00 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 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