{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Kalle L. Jahn", "hasEmail": "mailto:kjahn@usgs.gov"}, "description": "This data release contains simulation results from twenty-three (23) transient inset numerical models of the eastern part of Long Island, New York that includes the Peconic River, and estuaries around the North and South Fork. The models simulate nitrogen concentrations in the aquifer and nitrogen loads to surface water bodies from 2020-2120 under different nitrogen inputs that represent potential nitrogen management decisions. Simulations are based on the inset MODFLOW 6 (Hughes and others, 2017) flow and transport models documented in Jahn and Walter (2024a & b).\nFirst posted August 2025, ver 1.0\nRevised January 2026, ver 2.0\nVersion 1.0:\nIn this version of the dataset, the 250x250-foot inset model arrays (such as\nrecharge, nitrogen inputs, initial conditions) were shifted north by 1 regional\nmodel rows (equivalent to 500 feet) and west by 1 regional model column\n(equivalent to 500 feet) due to a geospatial processing error. This resulted in\nthe incorrect placement of those arrays relative to the inset coastlines.\nVersion 2.0:\nThis version of the dataset has been updated with correctly aligned inset model\narrays for all scenarios. Corresponding model output and postprocessed files\nhave been updated.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P134LZVQ", "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.66ec20ccd34e0606a9dbff7b.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_66ec20ccd34e0606a9dbff7b", "keyword": ["Long Island", "MODFLOW 6", "New York", "Suffolk County", "USGS:66ec20ccd34e0606a9dbff7b", "environment", "geoscientificInformation", "groundwater", "inlandWaters", "model", "modflow6", "nitrogen", "usgsgroundwatermodel"], "modified": "2026-01-12T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-74.0665, 40.3862, -71.7916, 41.2270", "theme": ["geospatial"], "title": "Simulations of Groundwater Nitrogen Transport in the Long Island, New York Aquifer System Under Potential Nitrogen Management Scenarios (ver. 2.0, January 2026)"}