{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Christopher A. Mason", "hasEmail": "mailto:camason@usgs.gov"}, "description": "This Child Item contains (1) a table of trends in eight annual streamflow statistics for the time periods 1940-1969, 1970-1999, and 2000-2018, and\n(2) a .zip file of plots of the eight statistical trends for the three time periods.\nThe annual streamflow statistics and their trends were computed by Climate Year (CY) for 1-,7- and 30-day minima and by Water Year (WY) for 1-,7- and 30-day maxima, median and mean.\nStreamgages from the original dataset (n = 409) were excluded from one or more time periods of analysis because of extensive data gaps that would interrupt trend lines;\ntherefore, streamgages were indexed into the earliest possible time period relative to their installation date \n(for example, a streamgage with an operating start year of 1958 would be included in the analysis for the time periods 1970-1999 and 2000-2018), which resulted in different sample sizes for each period:\n1940-1969 (n = 90), 1970-1999 (n = 167), and 2000-2018 (n = 243).\nSimilarly, multiple streamgages were wholly excluded because of frequent discontinuities in the daily mean streamflow used to derive the annual mean streamflow through all three time periods.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P99OOTED", "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.6092890cd34e791692e3e913.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_6092890cd34e791692e3e913", "keyword": ["Chesapeake Bay Watershed", "Delaware", "EGRET", "Maryland", "New York", "Pennsylvania", "USGS:6092890cd34e791692e3e913", "United States", "Virginia", "Washington DC", "West Virginia", "flow", "stream flow trends", "time series"], "modified": "2021-08-12T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-79.167480469182, 36.208470061656, -74.904785156852, 42.714410712674", "theme": ["geospatial"], "title": "Streamflow Statistic Trends at USGS Streamgages within the Chesapeake Bay Watershed (1940-2018)"}