{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Glen B. Carleton", "hasEmail": "mailto:carleton@usgs.gov"}, "description": "Three existing groundwater flow models, using MODFLOW-2000, SEAWAT, and \nSHARP model codes, were used by the U.S. Geological Survey (USGS) to \ndetermine the effects of increased withdrawals, and shifts of withdrawals between \n2 aquifers, on the limited water resources in the Cape May County, New Jersey. \nSaltwater intrusion and declining water levels have been a water-supply problem in \nCape May County for decades. Several communities in the county have only one \naquifer from which freshwater withdrawals can be made, and that sole source is \nthreatened by saltwater intrusion and (or) substantial declines in water levels \ncaused by groundwater withdrawals. Growth of the year-around and summer \ntourism populations have caused water demand for some purveyors to approach \nfull-allocation withdrawal rates leading these purveyors to request increases in \nallocations. The three groundwater flow models were used to evaluate the shallow\nand deep aquifer systems of Cape May County. The groundwater flow in the shallow\nand deep aquifer systems were simulated separately. The lateral hydrologic \nboundaries of the shallow aquifer system generally coincide with the political \nboundary of Cape May County, whereas the boundaries for the deep aquifer system\nextend well beyond the county boundaries. Flow in the shallow aquifers was simulated\nwith the saltwater-transport modeling code, SEAWAT. Flow in the deep aquifers was\nsimulated using MODFLOW-2000 with a medium-cell-size numerical model (CMAC) \nencompassing Cape May County (https://doi.org/10.3133/wri954280) that was revised \nto include the Rio Grande water-bearing zone and recalibrated with recent (2003) \nwithdrawal data and water-level measurements for a previous study of the Cape May \nCounty water resources (https://doi.org/10.3133/sir20095187). Boundary flows to the \nCMAC model were provided from the New Jersey Coastal Plain regional model (NJCP \nSHARP) (https://doi.org/10.3133/wri984216).  This coarse-cell-size Coastal Plain-wide \nmodel uses the SHARP model code and simulates saltwater movement by treating \nthe transition from freshwater to saltwater as a sharp interface, and therefore, only \npredicts large-scale movements of the 10,000-mg/L isochlor. Future groundwater \nwithdrawal scenarios for the shallow and deep system were compared to baseline \nscenarios in an effort to balance the need for additional water with protection of the \nlimited water resources in the county. This USGS data release contains all the input \nand output files for the simulations described in the associated model documentation \nreport (https://doi.org/10.3133/sir20205052)  ", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9KC1PGV", "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.ee56cd2e-bde0-49aa-b0ad-49da2a6696de.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_ee56cd2e-bde0-49aa-b0ad-49da2a6696de", "keyword": ["Atlantic City 800-foot sand", "Cape May County", "Cohansey aquifer", "Groundwater", "Groundwater Management", "Groundwater Model", "InlandWaters", "Kirkwood-Cohansey aquifer", "Lower Kirkwood aquifer", "MODFLOW-2000", "New Jersey", "Rio Grande water-bearing zone", "SEAWAT", "SHARP", "USGS:ee56cd2e-bde0-49aa-b0ad-49da2a6696de", "Upper Kirkwood aquifer", "environment", "geoscientificInformation", "inlandWaters", "saltwater intrusion", "usgsgroundwatermodel"], "modified": "2021-12-01T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-75.287319, 38.632629, -74.349834, 39.463917", "theme": ["geospatial"], "title": "SEAWAT, MODFLOW-2000, and SHARP models used to simulate potential water-allocation changes, Cape May County, New Jersey"}