{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Wesley O. Zell", "hasEmail": "mailto:wzell@usgs.gov"}, "description": "A steady state three-dimensional groundwater flow (MODFLOW-2005) and advective \ntransport (MODPATH6) model was developed to examine subsurface travel times to \nwells and receiving streams in two subcatchments contributing to the Upper Chester \nRiver, Maryland. The model was calibrated to conditions from 1990 to 2005, the period \nfor which groundwater levels, stream discharge measurements, and atmospheric tracer \nmeasurements were jointly available. Six calibrated model scenarios were generated \nand paired with First Order Second Moment (FOSM) linear uncertainty analysis tools \nto evaluate (i) the uncertainty of base-flow age estimates as well as (ii) the worth of \nfuture data collection. The development of the model input and output files included \nin this data release are documented in the Journal of Hydrology article \n(https://doi.org/10.1016/j.jhydrol.2018.02.006).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F7SN087R", "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.acd82fec-a6b3-4917-b5e5-c8bc2cb28514.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_acd82fec-a6b3-4917-b5e5-c8bc2cb28514", "keyword": ["Aquia aquifer", "Chester River", "Groundwater", "Groundwater Model", "InlandWaters", "Kent County", "MODFLOW2005", "MODPATH6", "Maryland", "Transport Model", "USGS:acd82fec-a6b3-4917-b5e5-c8bc2cb28514", "environment", "geoscientificInformation", "inlandWaters", "usgsgroundwatermodel"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-76.01677, 39.25341, -75.89283, 39.33294", "theme": ["geospatial"], "title": "MODFLOW-2005 and MODPATH6 models used to simulate groundwater flow and transport and base-flow age in two tributaries to the Upper Chester River, Maryland"}