{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Anna-Turi Maher", "hasEmail": "mailto:annamaher@usgs.gov"}, "description": "Base flow, the groundwater contribution to streamflow, is beneficial data for analysis of groundwater-flow systems. This data release includes base-flow estimates and streamflow data for 471 Oregon streamgage sites. Categories of data include: (1) site information, (2) water year estimates of base flow and streamflow, and (3) daily estimates of base flow. Water-year base-flow estimates are considered most reliable; daily estimates are provided for completion and summarization purposes only. Daily discharge (streamflow) data from water years 1980\u20132023 were obtained from the United States Geological Survey (USGS; https://waterdata.usgs.gov) and the Oregon Water Resources Department (OWRD; https://apps.wrd.state.or.us/apps/sw/hydro_report/) online databases and used to estimate base flow using three methods: low-flow, graphical hydrograph separation (GHS), and chemical hydrograph separation (CHS). Specific conductance (SC) data from continuous SC monitoring at streamgages were obtained from the USGS database and used for CHS base-flow analysis at 15 sites. Data are in .csv file and .txt file format.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P17DGTTB", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.682fa1e5d4be027fab6e2d8b.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_682fa1e5d4be027fab6e2d8b", "keyword": ["Deschutes River Basin", "Goose and Summer Lakes Basin", "Grand Ronde River Basin", "Hood River Basin", "John Day River Basin", "Klamath River Basin", "Malheur Lake (Harney) Basin", "Malheur River Basin", "Mid-Coast Basin", "North Coast Basin", "Oregon", "Owyhee River Basin", "Powder River Basin", "Rogue River Basin", "Sandy River Basin", "South Coast Basin", "USGS:682fa1e5d4be027fab6e2d8b", "Umatilla River Basin", "Umpqua River Basin", "Willamette River Basin", "base flow", "environment", "groundwater flow", "hydrographic datasets", "hydrology", "inlandWaters", "stream discharge"], "modified": "2025-08-01T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-124.5500, 41.9800, -116.4600, 46.2700", "theme": ["geospatial"], "title": "Statewide base-flow estimates for Oregon, water years 1980\u20132023"}