{
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        "dcat": "http://www.w3.org/ns/dcat#",
        "dc": "http://purl.org/dc/elements/1.1/",
        "dct": "http://purl.org/dc/terms/conformsTo",
        "ecrro": "http://cor.esipfed.org/ont/earthcube/",
        "ecrr": "https://n2t.net/ark:/23942/g2"
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    "@id": "http://n2t.net/ark:/23942/g2900010",
    "@type": [
        "CreativeWork",
        "Product"
    ],
    "name": "USGS NWIS waterdata service",
    "subjectOf": {
        "@type": "CreativeWork",
        "name": "linked web page",
        "url": "https://waterdata.usgs.gov/nwis"
    },
    "description": "Services for national water data information system (NWIS) hosted by the US Geological survey. Offerings include inventory, instantaneous values, daily values, groundwater levels. Documentation in this registry is incomplete. Apparently the web services are superseded by those at  https://waterservices.usgs.gov/rest",
    "funder": [
        {
            "@type": "Organization",
            "name": "US Geological Survey (USGS)",
            "identifier": "https://ror.org/035a68863"
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    "audience": [
        {
            "@type": "Audience",
            "audienceType": "Scientists",
            "identifier": "http://cor.esipfed.org/ont/earthcube/AUT_0000007"
        },
        {
            "@type": "Audience",
            "audienceType": "Developers",
            "identifier": "http://cor.esipfed.org/ont/earthcube/AUT_0000006"
        }
    ],
    "about": {
        "@type": "DefinedTerm",
        "name": "Hydrology",
        "identifier": "http://cor.esipfed.org/ont/earthcube/ADO_0000079"
    },
    "isRelatedTo": [
        {
            "@type": "CreativeWork",
            "name": "notifications service, ",
            "url": "http://waterdata.usgs.gov/nwis/subscribe?form=email"
        },
        {
            "@type": "CreativeWork",
            "name": "see also USGS water services, ",
            "url": "https://waterservices.usgs.gov/rest/"
        }
    ],
    "mainEntity": {
        "@type": "CreativeWork",
        "url": "http://cor.esipfed.org/ont/earthcube/ECRRO_0000202",
        "name": "Service"
    },
    "additionalProperty": [
        {
            "@type": "PropertyValue",
            "propertyID": "ecrro:ECRRO_0000503",
            "name": "Interface specification",
            "value": {
                "@type": "PropertyValue",
                "identifier": "HTTP",
                "url":"https://developer.mozilla.org/en-US/docs/Web/HTTP/Resources_and_specifications"
            }
        },
        {
            "@type": "PropertyValue",
            "propertyID": "ecrro:ECRRO_0000138",
            "name": "has maturity state",
            "value": {
                "@type": "PropertyValue",
                "name": "Used in multiple places",
                "identifier": "http://cor.esipfed.org/ont/earthcube/MTU_0000001"
            }
        },
        {
            "@type": "PropertyValue",
            "propertyID": "ecrro:ECRRO_0000219",
            "name": "expected lifetime",
            "value": {
                "@type": "PropertyValue",
                "name": "Long-term",
                "identifier": "http://cor.esipfed.org/ont/earthcube/ELT_0000001"
            }
        },
        {
            "@type": "PropertyValue",
            "propertyID": "ecrro:ECRRO_0000218",
            "name": "Stewardship",
            "value":  "Organization: US Geological Survey (USGS) production system"
        },
        {
            "@type": "PropertyValue",
            "propertyID": "ecrro:ECRRO_0000017",
            "name": "Usage",
            "value": {
                "@type": "PropertyValue",
                "name": "Wide usage (>50 adopters)",
                "identifier": "http://cor.esipfed.org/ont/earthcube/UBA_0000001"
            }
        },
        {
            "@type": "PropertyValue",
            "propertyID": "ecrro:ECRRO_0001301",
            "name": "registration metadata",
            "value": {
                "@type": "StructuredValue",
                "additionalType": "ecrro:ECRRO_0000156",
                "contributor": {
                    "@type": "Person",
                    "name": "Stephen M. Richard"
                },
                "datePublished": "2021-02-10T21:11:19-0700"
            }
        }
    ]
}