{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Janet R Barclay", "hasEmail": "mailto:jbarclay@usgs.gov"}, "description": "A steady-state groundwater flow model, using MODFLOW-NWT, was developed to better understand groundwater \nflow in coastal Connecticut and adjacent areas of New York and Rhode Island.  Aquatic systems in and around \nLong Island Sound (LIS) provide a variety of ecological and economic benefits such as flood and storm protection, \nwater filtration, recreation, habitat for commercially and recreationally important fish and bird populations, and \ncarbon sequestration. In some areas of LIS and in many embayments along the Connecticut coastline, aquatic \necosystems are degraded due to excess nitrogen from sources such as waste-water treatment plants, septic \nsystems, and fertilizer. A substantial fraction of total nitrogen inputs to LIS are transported through the ground-\nwater-flow system. Currently, the groundwater-flow system on the north shore of LIS is not well understood. \nGroundwater budgets, travel times, and discharge receptors have not been quantified, hindering water-resources \nmanagement efforts focused on groundwater transported nitrogen.  The groundwater model was used as a framework \nfor understanding the groundwater component of flow to surface water in the HUC12 watersheds within the study \narea and to a subset of coastal embayments of LIS.  The model was calibrated to groundwater levels and baseflow \ndischarge from water years 1990 through 2019, long-term average stream altitudes, and a dry stream/flooded land \nmetric. The model was used to calculate the components of the groundwater budget and to estimate groundwater \ntravel times, using MODPATH particle-tracking, within HUC12 basins and embayment watersheds, as well as to \nestimate groundwater nitrogen loading and transport times within the Niantic River watershed. This dataset contains \nmodel inputs and outputs, post-processing python scripts, and PEST calibration input files for the simulations \ndescribed in the associated model documentation report (https://doi.org/10.3133/sir20215116).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9BLHPIT", "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.eb13416a-3b3a-4d43-9b31-daa96bc761c8.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_eb13416a-3b3a-4d43-9b31-daa96bc761c8", "keyword": ["CoastalWaters", "Connecticut", "Groundwater", "Groundwater Model", "InlandWaters", "Long Island Sound", "MODFLOW", "MODFLOW-NWT", "MODPATH", "New York", "Niantic River Watershed", "Rhode Island", "USGS:eb13416a-3b3a-4d43-9b31-daa96bc761c8", "environment", "geoscientificInformation", "inlandWaters", "nitrogen transport", "usgsgroundwatermodel"], "modified": "2020-08-13T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-74.536511, 40.350945, -71.036883, 42.681208", "theme": ["geospatial"], "title": "MODFLOW-NWT and MODPATH groundwater flow models of steady-state conditions in coastal Connecticut and adjacent areas of New York and Rhode Island, as well as a nitrogen transport model of the Niantic River watershed"}