{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Mackenzie Keith", "hasEmail": "mailto:mkeith@usgs.gov"}, "description": "The Tillamook Bay subbasins and Nehalem River basins encompass 1,369 and 2,207 respective square \nkilometers of northwestern Oregon and drain to the Pacific Ocean. The Tillamook, Trask, Wilson, Kilchis, \nand Miami Rivers flow into Tillamook Bay near the towns of Tillamook and Garibaldi. The Wilson and Trask \nRiver basins cover the largest areas (500 and 451 square kilometers, respectively) whereas the Tillamook \nand Kilchis Rivers encompass similar sized areas (156 and 169 square kilometers, respectively) and the \nMiami River the smallest area (94 square kilometers). In cooperation with the U.S. Army Corps of Engineers, \nthe U.S. Geological Survey completed a reconnaissance-level assessment of channel condition and bed-material \ntransport relevant to the permitting of in-stream gravel extraction along the the major alluvial portions of six river \nsystems, including the lowermost 14.1 km of the Tillamook River, 16.3 km of the Trask River, 15.2 km of the \nWilson River, 7.8 km of the Kilchis River, 11.6 km of the Miami River, and 31.4 km of the Nehalem River. To \nsupport these analyses, digital channel maps were produced to depict channel and floodplain conditions in the \nTillamook Bay sub-basins and Nehalem River basin from different time periods. GIS layers defining the wetted \nchannel and bar features and channel centerline in the study area were developed for four time periods: 1939, \n1967, 2005, and 2009. For this project, the active channel was defined as area typically inundated during annual \nhigh flows, and includes the low-flow channel as well as side channels, islands, and channel-flanking gravel bars. \nThe wetted channel and bar feature datasets were developed by digitizing from aerial photographs. Aerial \nphotographs from 1939 and 1967 were scanned, rectified, and mosaicked for this project (See metadata for \neach photograph set for more information on the rectification process and resolution of each dataset). Digital \northophotographs from 2005 and 2009 are publicly available.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P92AL142", "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.fd98d3f4-85a0-43e9-8e8a-79778fe5381b.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_fd98d3f4-85a0-43e9-8e8a-79778fe5381b", "keyword": ["Kilchis River", "Miami River", "Nehalem Bay", "Nehalem River", "Oregon Coast Range", "Tillamook Bay", "Tillamook County", "Tillamook River", "Trask River", "USGS:fd98d3f4-85a0-43e9-8e8a-79778fe5381b", "Wilson River", "channel stability", "environment", "fluvial geomorphology", "geoscientificInformation", "historical channel change", "inlandWaters", "sediment transport"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-123.893351, 45.395236, -123.723904, 45.620795", "theme": ["geospatial"], "title": "Channel centerline for the Tillamook, Trask, Wilson, Kilchis, and Miami Rivers, Oregon in 2005"}