{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Daryll A. Pope", "hasEmail": "mailto:dpope@usgs.gov"}, "description": "A three-dimensional groundwater-flow model (MODFLOW-2000 ) of the \nKirkwood-Cohansey aquifer system, Rio Grande water-bearing zone, \nand Atlantic City 800-foot sand in the Great Egg Harbor and Mullica \nRiver Basins, N.J. was developed to simulate the effects of withdrawals \non streamflow and groundwater supply.  Increasing groundwater \nwithdrawals from the unconfined Kirkwood Cohansey aquifer system is \na major concern because of the potential for streamflow depletion and \nthe resulting ecological effects on aquatic habitats, wetlands, and vernal \nponds. In the confined Atlantic City 800-foot sand aquifer water levels \nhave been steadily declining and most of the groundwater withdrawn \nfrom the Atlantic City 800-foot sand ultimately comes from the Kirkwood\n-Cohansey aquifer system. The groundwater flow model was used to \nsimulate scenarios under three possible conditions: average 1998 to \n2006 withdrawals (Average scenario), full-allocation withdrawals (Full \nAllocation scenario), and projected 2050-demand withdrawals (2050 \nDemand scenario). Three adjusted scenarios, variations of the Average, \nFull Allocation, and 2050 Demand scenarios, were simulated where \nwithdrawals were modified in stages with the intent to successively \neliminate or minimize the base-flow deficits. Monthly base-flow depletion \ncriteria were determined using the NJDEP Low-Flow Margin method to \nestimate available water on an annual basis and if water-supply deficits \nexist. The model simulates monthly stress periods from 1998 through \n2006.  An existing regional model of the New Jersey Coastal Plain was \nrevised to provide boundary conditions for the Great Egg Harbor and \nMullica River Basin model (GEM). This USGS data release contains all \nof the input and output files for the simulations described in the associated \nmodel documentation report (http://pubs.usgs.gov/sir/2012/5187/).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F70G3J3J", "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.c43135f7-fdf9-4cd4-9fd0-4b5a57995852.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_c43135f7-fdf9-4cd4-9fd0-4b5a57995852", "keyword": ["Atlantic City 800-foot sand", "Atlantic County", "Base-Flow Depletion", "Burlington County", "Camden County", "Cape May County", "Cumberland County", "Gloucester County", "Great Egg Harbor River", "Groundwater", "Groundwater Management", "Groundwater Model", "InlandWaters", "Kirkwood-Cohansey aquifer system", "MODFLOW-2000", "Mullica River", "New Jersey", "Ocean County", "Rio Grande water-bearing zone", "USGS:c43135f7-fdf9-4cd4-9fd0-4b5a57995852", "environment", "geoscientificInformation", "inlandWaters", "usgsgroundwatermodel"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-75.273443, 39.009841, -73.916454, 40.063713", "theme": ["geospatial"], "title": "MODFLOW-2000 model used to evaluate alternative withdrawal strategies on groundwater flow in the unconfined Kirkwood-Cohansey aquifer system, the Rio Grande water-bearing zone, and the Atlantic City 800-foot sand in the Great Egg Harbor and Mullica River Basins, New Jersey"}