USFS National Riparian Area Base Map

<p><strong>Open the Data Resource:</strong> <a target='_blank' href='https://imagery.geoplatform.gov/iipp/rest/services/Ecosystems/USFS_EDW_Riparian_Areas/ImageServer' rel='nofollow ugc noopener noreferrer'>https://imagery.geoplatform.gov/iipp/rest/services/Ecosystems/USFS_EDW_Riparian_Areas/ImageServer</a></p><p>The USFS National Riparian Area Base Map shows national riparian areas for the conterminous United States. Riparian areas are an important natural resource with high biological diversity. These ecosystems contain specific vegetation and soil characteristics which support irreplaceable values and multiple ecosystem functions and are very responsive to changes in land management activities. Delineating and quantifying riparian areas is an essential step in riparian monitoring, planning, management, and policy decisions. The USDA Forest Service supports the development and implementation of a national context framework with a multi-scale approach to define riparian areas utilizing free available national geospatial datasets.</p><p>&nbsp;</p><p>This layer was created to estimate 50-year flood height riparian areas to support statistical analysis, map display and model parameterization. Fifty-year flood heights were estimated using U.S. Geological Survey stream gage information. NHDPlus version 2.1 was used as the hydrologic framework to delineate riparian areas. The U.S. Fish and Wildlife Service's National Wetland Inventory and USGS 10-meter digital elevation models were also used in processing these data.</p><p>The data are '1' if in the riparian zone and 'NoData' if outside the riparian zone. When displayed on a map, riparian zone cells are color-coded 'blue' with 25% transparency.</p><p>For data access, visit the <a target='_blank' href='https://www.fs.usda.gov/rds/archive/catalog/RDS-2019-0030' rel='nofollow ugc noopener noreferrer'>Research Data Archive</a>. For additional information regarding methodologies for modeling and processing these data, see <a target='_blank' href='https://doi.org/10.14358/PERS.78.3.259' rel='nofollow ugc noopener noreferrer'>Abood et al. (2012)</a> and the <a target='_blank' href='https://storymaps.arcgis.com/stories/8cd69adaaaf541c78f8d867f0ec6b6ef' rel='nofollow ugc noopener noreferrer'>National Riparian Areas Base Map Story Map</a>.</p><p>&nbsp;</p><p>&nbsp;</p>