{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "P. Ryan Jackson", "hasEmail": "mailto:pjackson@usgs.gov"}, "description": "A Turner Designs C3 submersible fluorometer was deployed in the Brandon Road Lock chamber (BRLD) near Rockdale, Illinois, to measure Rhodamine WT dye concentrations during a U.S. Geological Survey dye study conducted on October 20, 2015. The lock chamber at BRLD was dyed with 4 liters of Rhodamine WT dye during a routine filling procedure.  Measurements of dye concentration profiles were collected at 15 stations in the lock chamber and capture the three-dimensional distribution of the dye in the chamber after filling, after the lock was emptied, and after a 17-minute flushing operation of the lock. A series of five taglines and rope and pulley systems were used to position the fluorometer at each station to avoid putting a boat in the lock chamber and creating additional mixing. Fluorometer readings were taken at a frequency of 1 measurement every second.", "distribution": [{"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.57976ac7e4b021cadec9789d.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}, {"@type": "dcat:Distribution", "accessURL": "http://dx.doi.org/10.5066/F77W69B7", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_57976ac7e4b021cadec9789d", "keyword": ["Des Plaines River", "Rockdale", "Tracer", "Lock exchange", "USGS:57976ac7e4b021cadec9789d", "Dye", "Illinois", "Will County", "Brandon Road Lock and Dam"], "modified": "2020-08-14T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-88.103919, 41.502729, -88.10209, 41.503969", "theme": ["geospatial"], "title": "Rhodamine WT dye concentration profiles measured at fixed stations in the Brandon Road Lock chamber near Rockdale, Illinois (October 20, 2015)"}