@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/47c4dd74-2576-44c4-8013-f90232f5fef0> a dcat:Dataset ;
    dct:description """<p>The GCEW herbicide data were collected from 1991-2010, and are documented at plot, field, and watershed scales.</p>
<p>Atrazine concentrations in Goodwater Creek Experimental Watershed (GCEW) were shown to be among the highest of any watershed in the United States based on comparisons using the national Watershed Regressions for Pesticides (WARP) model and by direct comparison with the 112 watersheds used in the development of WARP. This 20-yr-long effort was augmented with a spatially broad effort within the Central Mississippi River Basin encompassing 12 related claypan watersheds in the Salt River Basin, two cave streams on the fringe of the Central Claypan Areas in the Bonne Femme watershed, and 95 streams in northern Missouri and southern Iowa. The research effort on herbicide transport has highlighted the importance of restrictive soil layers with smectitic mineralogy to the risk of transport vulnerability. Near-surface soil features, such as claypans and argillic horizons, result in greater herbicide transport than soils with high saturated hydraulic conductivities and low smectitic clay content.</p>
<p>The data set contains concentration, load, and daily discharge data for Devils Icebox Cave and Hunters Cave from 1999 to 2002. The data are available in Microsoft Excel 2010 format. Sheet 1 (Cave Streams Metadata) contains supporting information regarding the length of record, site locations, parameters measured, parameter units, method detection limits, describes the meaning of zero and blank cells, and briefly describes unit area load computations. Sheet 2 (Devils Icebox Concentration Data) contains concentration data from all samples collected from 1999 to 2002 at the Devils Icebox site for 12 analytes and two computed nutrient parameters. Sheet 3 (Devils Icebox SS Conc Data) contains 15-minute suspended sediment (SS) concentrations estimated from turbidity sensor data for the Devils Icebox site. Sheet 4 (Devils Icebox Load & Discharge Data) contains daily data for discharge, load, and unit area loads for the Devils Icebox site. Sheet 5 (Hunters Cave Concentration Data) contains concentration data from all samples collected from 1999 to 2002 at the Hunters Cave site for 12 analytes and two computed nutrient parameters. Sheet 6 (Hunters Cave SS Conc Data) contains 15-minute SS concentrations estimated from turbidity sensor data for the Hunters Cave site. Sheet 7 (Hunters Cave Load & Discharge Data) contains daily data for discharge, load, and unit area loads for the Hunters Cave site.</p>
<p>[Note: To support automated data access and processing, each worksheet has been extracted as a separate, machine-readable CSV file; see Data Dictionary for descriptions of variables and their concentration units.]</p>
""" ;
    dct:identifier "76c8734e-e6c6-4d02-b1b3-09e64dcffdbd" ;
    dct:issued "2025-11-21T10:22:30.893369"^^xsd:dateTime ;
    dct:modified "2019-08-23"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "MULTIPOLYGON (((-91.3684 43.5014, -91.2151 43.5014, -91.2041 43.3535, -91.0562 43.2549, -91.1767 43.1344, -91.1439 42.9099, -91.0672 42.7510, -90.7112 42.6360, -90.6400 42.5101, -90.4209 42.3293, -90.3935 42.2253, -90.1690 42.1267, -90.1416 42.0007, -90.1799 41.8090, -90.3114 41.7433, -90.3442 41.5899, -90.6564 41.4640, -91.0453 41.4147, -91.1110 41.2394, -90.9467 41.0970, -90.9631 40.9218, -91.0946 40.8232, -91.1220 40.6698, -91.4013 40.5603, -91.4177 40.3795, -91.5272 40.4124, -91.7299 40.6150, -91.8340 40.6096, -93.2580 40.5822, -94.6327 40.5712, -95.7664 40.5877, -95.8814 40.7191, -95.8266 40.9765, -95.9252 41.2011, -95.9198 41.4530, -96.0950 41.5406, -96.1224 41.6776, -96.0622 41.7981, -96.1279 41.9733, -96.2648 42.0390, -96.4455 42.4882, -96.6318 42.7072, -96.5441 42.8551, -96.5113 43.0523, -96.4346 43.1235, -96.5606 43.2221, -96.5277 43.3973, -96.5825 43.4795, -96.4510 43.5014, -91.3684 43.5014)), ((-91.8340 40.6096, -91.7299 40.6150, -91.5272 40.4124, -91.4177 40.3795, -91.5053 40.2371, -91.4944 40.0345, -91.3684 39.7278, -91.0617 39.4704, -90.7276 39.2568, -90.6619 38.9281, -90.5852 38.8679, -90.4702 38.9610, -90.2511 38.9172, -90.1087 38.8460, -90.2073 38.7255, -90.1799 38.6324, -90.3497 38.3750, -90.3552 38.2161, -90.0594 38.0135, -89.9499 37.8820, -89.8404 37.9040, -89.5172 37.6904, -89.5172 37.5370, -89.4351 37.3453, -89.5172 37.2796, -89.2927 36.9948, -89.1338 36.9838, -89.2160 36.5785, -89.3639 36.6224, -89.4186 36.4964, -89.4843 36.4964, -89.5391 36.4964, -89.5336 36.2499, -89.7308 35.9980, -90.3771 35.9980, -90.2183 36.1842, -90.0649 36.3047, -90.1525 36.4964, -94.4738 36.5019, -94.6162 36.5019, -94.6162 37.0003, -94.6108 39.1582, -94.8244 39.2075, -94.9832 39.4430, -95.1092 39.5416, -94.8846 39.8318, -95.2078 39.9085, -95.3063 40.0016, -95.5528 40.2645, -95.7664 40.5877, -94.6327 40.5712, -93.2580 40.5822, -91.8340 40.6096)))"^^gsp:wktLiteral ] ;
    dct:title "Data from: Long-Term Agroecosystem Research in the Central Mississippi River Basin: Goodwater Creek Experimental Watershed and Regional Herbicide Water Quality Data" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Lerch, Robert" ;
            vcard:hasEmail <mailto:Bob.Lerch@ars.usda.gov> ] ;
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    dcat:keyword "amerigeo",
        "amerigeoss",
        "ckan",
        "continent-gt-north-america-gt-united-states-of-america-gt-iowa",
        "continent-gt-north-america-gt-united-states-of-america-gt-missouri",
        "earth-science-gt-agriculture-gt-agricultural-plant-science-gt-crop-plant-yields",
        "earth-science-gt-agriculture-gt-soils",
        "earth-science-gt-human-dimensions-gt-environmental-governance-management-gt-environmental-asses",
        "earth-science-gt-solid-earth-gt-geomorphic-landforms-processes-gt-fluvial-landforms-gt-watershe",
        "earth-science-gt-terrestrial-hydrosphere-gt-ground-water-gt-percolation",
        "earth-science-gt-terrestrial-hydrosphere-gt-water-quality-water-chemistry-gt-contaminants",
        "gas-chromatographs",
        "geo",
        "geoss",
        "hplc-gt-high-performance-liquid-chromatograph",
        "national",
        "north-america",
        "np211",
        "united-states",
        "vertical-location-gt-land-surface" .

<https://data.amerigeoss.org/dataset/47c4dd74-2576-44c4-8013-f90232f5fef0/resource/06e1d809-fee0-41ac-ab41-4914d81e95bc> a dcat:Distribution ;
    dct:description "DevilsIceboxSSConcData.csv" ;
    dct:format "CSV" ;
    dct:issued "2020-11-10T16:26:39.151039"^^xsd:dateTime ;
    dct:modified "2025-11-21T10:22:30.880211"^^xsd:dateTime ;
    dct:title "Comma Separated Values File" ;
    dcat:accessURL <https://data.nal.usda.gov/system/files/DevilsIceboxSSConcData.csv> ;
    dcat:mediaType "text/csv" .

<https://data.amerigeoss.org/dataset/47c4dd74-2576-44c4-8013-f90232f5fef0/resource/282ba6a7-347c-4b6c-aff9-72c7758573d0> a dcat:Distribution ;
    dct:description "HuntersCaveConcData_0.csv" ;
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    dcat:accessURL <https://data.nal.usda.gov/system/files/HuntersCaveConcData_0.csv> ;
    dcat:mediaType "text/csv" .

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    dcat:accessURL <https://data.nal.usda.gov/system/files/c3.jeq2013.12.0516.ds1_.xlsx> ;
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    dct:description "HuntersCaveSSConc.csv" ;
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    dct:title "Comma Separated Values File" ;
    dcat:accessURL <https://data.nal.usda.gov/system/files/HuntersCaveSSConc.csv> ;
    dcat:mediaType "text/csv" .

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    dct:description "HuntersCaveLoad%26Discharge.csv" ;
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    dct:issued "2020-11-10T16:26:39.151044"^^xsd:dateTime ;
    dct:modified "2025-11-21T10:22:30.881027"^^xsd:dateTime ;
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    dcat:accessURL <https://data.nal.usda.gov/system/files/HuntersCaveLoad%26Discharge.csv> ;
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<https://data.amerigeoss.org/dataset/47c4dd74-2576-44c4-8013-f90232f5fef0/resource/4c86edd1-5b59-40bc-892e-2cdc059ccfbf> a dcat:Distribution ;
    dct:description "DevilsIceboxLoad%26Discharge_0.csv" ;
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    dct:issued "2020-11-10T16:26:39.151036"^^xsd:dateTime ;
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    dct:title "Comma Separated Values File" ;
    dcat:accessURL <https://data.nal.usda.gov/system/files/DevilsIceboxLoad%26Discharge_0.csv> ;
    dcat:mediaType "text/csv" .

<https://data.amerigeoss.org/dataset/47c4dd74-2576-44c4-8013-f90232f5fef0/resource/9e7632eb-078f-49bf-a20a-8ef95cc47545> a dcat:Distribution ;
    dct:description "DevilsIceboxConcData_0.csv" ;
    dct:format "CSV" ;
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    dct:title "Comma Separated Values File" ;
    dcat:accessURL <https://data.nal.usda.gov/system/files/DevilsIceboxConcData_0.csv> ;
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<https://data.amerigeoss.org/dataset/47c4dd74-2576-44c4-8013-f90232f5fef0/resource/a68272a6-caaf-43b0-9d82-6c4b5c866534> a dcat:Distribution ;
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    dct:modified "2025-11-21T10:22:30.881798"^^xsd:dateTime ;
    dct:title "Comma Separated Values File" ;
    dcat:accessURL <https://data.nal.usda.gov/system/files/LTAR_GCEW_herbicidewater_qual_3.csv> ;
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    dct:modified "2025-11-21T10:22:30.879011"^^xsd:dateTime ;
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    dcat:accessURL <https://data.nal.usda.gov/system/files/LTAR_GCEW_herbicidewater_qual_0.xlsx> ;
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    foaf:name "US Migrating" .