@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/4f4dc086-c75c-4970-a8a4-16ac286e7b49> a dcat:Dataset ;
    dct:description """The model simulates two-dimensional groundwater flow and base flow in streams in the 
southern Nicolet Unit of the Chequamegon-Nicolet National Forest using the analytic 
element program GFLOW (Haitjema, 1995). Significant streams and lakes in the model 
domain are represented at varying levels of detail as linesink elements fully connected 
to the groundwater system. The highest level of detail is given to surface water features 
within the Forest Unit, while greatly simplified features around the perimeter of the model 
provide a boundary condition for the groundwater flow system. Groundwater discharge to 
the linesinks is computed, and routed through the surface water network as base flow. 
Recharge to the groundwater system was obtained from a separate soil-water-balance 
(SWB) model, which uses topography, soils, land use, and climatic data to estimate 
recharge as deep drainage from the soil zone. Estimated average annual recharge rates 
were supplied to the GFLOW model on a regular 1-km grid covering the model domain, 
using the Hybrid GFLOW-MODFLOW feature of GFLOW.
		
The model was calibrated to groundwater levels, interpreted lake stages, and estimated 
annual base flows in streams, \\with an emphasis on data collected since 1970. Parameters 
representing hydraulic conductivity, groundwater recharge, and surface water bed-sediment 
resistance were adjusted using the parameter estimation program PEST, to produce 
simulated groundwater levels and base flow estimates that agree with field measurements, 
and input parameter values that are consistent with previous studies and the conceptual 
understanding of the area. This USGS data release contains all of the input and output for 
the simulations described in the published report, which can be found in the main directory 
of this data release.""" ;
    dct:identifier "USGS:fd3e6b0c-3c26-4950-84c7-42a618b2a851" ;
    dct:issued "2025-11-21T15:04:19.768015"^^xsd:dateTime ;
    dct:modified "20201117"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-89.0336 45.0371, -89.0336 45.7627, -88.1442 45.7627, -88.1442 45.0371, -89.0336 45.0371))"^^gsp:wktLiteral ] ;
    dct:title "GFLOW groundwater flow model for the southern part of the Nicolet Unit of the Chequamegon-Nicolet National Forest, Wisconsin" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Andrew T. Leaf" ;
            vcard:hasEmail <mailto:aleaf@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/4f4dc086-c75c-4970-a8a4-16ac286e7b49/resource/a5d594a1-e78c-42c6-87ad-3df4f7da609d>,
        <https://data.amerigeoss.org/dataset/4f4dc086-c75c-4970-a8a4-16ac286e7b49/resource/b064351c-15b8-462d-9e18-9243e769cabe> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "chequamegon-nicolet-national-forest",
        "ckan",
        "copper-falls-formation",
        "eagle-river-florence-district",
        "environment",
        "geo",
        "geoscientificinformation",
        "geoss",
        "gflow",
        "groundwater",
        "groundwater-model",
        "inlandwaters",
        "lakewood-laona-districtforest-county",
        "langlade-county",
        "marinette-county",
        "menominee-county",
        "national",
        "nicolet-unit",
        "north-america",
        "oconto-county",
        "pest",
        "soil-water-balance-code",
        "united-states",
        "usgs-fd3e6b0c-3c26-4950-84c7-42a618b2a851",
        "usgsgroundwatermodel",
        "wisconsin" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/4f4dc086-c75c-4970-a8a4-16ac286e7b49/resource/a5d594a1-e78c-42c6-87ad-3df4f7da609d> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T20:12:57.796952"^^xsd:dateTime ;
    dct:modified "2025-11-21T15:04:19.753700"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.fd3e6b0c-3c26-4950-84c7-42a618b2a851.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/4f4dc086-c75c-4970-a8a4-16ac286e7b49/resource/b064351c-15b8-462d-9e18-9243e769cabe> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T20:12:57.796960"^^xsd:dateTime ;
    dct:modified "2025-11-21T15:04:19.754107"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/F7M044BV> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .