@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 owl: <http://www.w3.org/2002/07/owl#> .
@prefix schema: <http://schema.org/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://urn.fi/urn:nbn:fi:att:8b3c67b4-22c0-4589-be00-a3d0341064d5> a schema:DataDownload,
        schema:Dataset,
        dcat:Dataset,
        dcat:Distribution,
        foaf:Document ;
    dct:description """This dataset contains long-term measurements of meteorology, ambient air trace gases, solar and terrestrial radiation, and soil performed at SMEAR I research station in Värriö, Salla, Finland during years 1992–2021.

The data were exported from SMEAR database on the dataset release date. Most recent version of the data are available at https://smear.avaa.csc.fi/.
""" ;
    dct:identifier "https://urn.fi/urn:nbn:fi:att:8b3c67b4-22c0-4589-be00-a3d0341064d5" ;
    dct:issued "2026-05-21T16:44:42.894063"^^xsd:dateTime,
        "2026-05-21T16:44:43.094001"^^xsd:dateTime ;
    dct:modified "2026-05-21T17:08:10.046082"^^xsd:dateTime,
        "2026-05-21T21:35:59.252361"^^xsd:dateTime ;
    dct:publisher [ a foaf:Agent ;
            foaf:name "University of Helsinki" ],
        [ a foaf:Agent ;
            foaf:name "University of Helsinki" ] ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POINT (29.6099 67.7549)"^^gsp:wktLiteral ] ;
    dct:temporal [ a dct:PeriodOfTime ;
            dcat:endDate "2021-12-31"^^xsd:date ;
            dcat:startDate "1992-01-01"^^xsd:date ],
        [ a dct:PeriodOfTime ;
            dcat:endDate "2021-12-31"^^xsd:date ;
            dcat:startDate "1992-01-01"^^xsd:date ] ;
    dct:title "SMEAR I Värriö forest meteorology, air quality and soil" ;
    schema:about [ a schema:Thing ;
            schema:name "agriculture" ;
            schema:url "https://dataportal.eu-interact.org/group/be4baf52-8e53-49ec-b9ff-92f45b31968e" ],
        [ a schema:Thing ;
            schema:name "land-surface" ;
            schema:url "https://dataportal.eu-interact.org/group/6cc9a229-1923-4af7-9d92-95ccf9ec185e" ],
        [ a schema:Thing ;
            schema:name "varrio-subarctic-research-station" ] ;
    schema:creator [ a schema:Organization ;
            schema:contactPoint [ a schema:ContactPoint ;
                    schema:contactType "customer service" ;
                    schema:name "University of Helsinki (UH - Partner 15)" ;
                    schema:url "https://urn.fi/urn:nbn:fi:att:8b3c67b4-22c0-4589-be00-a3d0341064d5" ] ;
            schema:name "University of Helsinki (UH - Partner 15)" ] ;
    schema:dateModified "2026-05-21T21:35:59.252361" ;
    schema:datePublished "2022-04-22",
        "2022-04-22T00:00:00" ;
    schema:description """This dataset contains long-term measurements of meteorology, ambient air trace gases, solar and terrestrial radiation, and soil performed at SMEAR I research station in Värriö, Salla, Finland during years 1992–2021.

The data were exported from SMEAR database on the dataset release date. Most recent version of the data are available at https://smear.avaa.csc.fi/.
""" ;
    schema:distribution <https://urn.fi/urn:nbn:fi:att:8b3c67b4-22c0-4589-be00-a3d0341064d5> ;
    schema:identifier "https://urn.fi/urn:nbn:fi:att:8b3c67b4-22c0-4589-be00-a3d0341064d5" ;
    schema:keywords "SmartSMEAR",
        "air pollution",
        "air temperature",
        "relative humidity",
        "soil temperature",
        "trace gases" ;
    schema:license "https://spdx.org/licenses/CC-BY-SA-4.0" ;
    schema:name "SMEAR I Värriö forest meteorology, air quality and soil" ;
    schema:provider [ a schema:Organization ;
            schema:url "https://etsin.fairdata.fi" ] ;
    schema:publisher [ a schema:Organization ;
            schema:contactPoint [ a schema:ContactPoint ;
                    schema:contactType "customer service" ;
                    schema:name "University of Helsinki" ;
                    schema:url "https://urn.fi/urn:nbn:fi:att:8b3c67b4-22c0-4589-be00-a3d0341064d5" ] ;
            schema:name "University of Helsinki" ] ;
    schema:spatialCoverage [ a schema:Place ;
            schema:geo [ a schema:GeoShape ;
                    schema:polygon "{\"type\": \"Point\", \"coordinates\": [29.6099, 67.7549]}" ] ] ;
    schema:temporalCoverage "1992-01-01/2021-12-31" ;
    schema:url "https://urn.fi/urn:nbn:fi:att:8b3c67b4-22c0-4589-be00-a3d0341064d5" ;
    schema:variableMeasured [ a schema:PropertyValue ;
            schema:name "Soil water content" ;
            schema:unitText "m³ m⁻³" ],
        [ a schema:PropertyValue ;
            schema:name "Wind direction" ;
            schema:unitText "°" ],
        [ a schema:PropertyValue ;
            schema:name "Wind speed" ;
            schema:unitText "m s⁻¹" ],
        [ a schema:PropertyValue ;
            schema:name "Photosynthetically active radiation" ;
            schema:unitText "µmol m⁻² s⁻¹" ],
        [ a schema:PropertyValue ;
            schema:name "Snow depth" ;
            schema:unitText "cm" ],
        [ a schema:PropertyValue ;
            schema:name "Rainfall" ;
            schema:unitText "mm" ],
        [ a schema:PropertyValue ;
            schema:name "Air pressure" ;
            schema:unitText "hPa" ],
        [ a schema:PropertyValue ;
            schema:name "WMO weather code" ],
        [ a schema:PropertyValue ;
            schema:name "O3 concentration" ;
            schema:unitText "ppb" ],
        [ a schema:PropertyValue ;
            schema:name "Soil temperature" ;
            schema:unitText "°C" ],
        [ a schema:PropertyValue ;
            schema:name "SO2 concentration" ;
            schema:unitText "ppb" ],
        [ a schema:PropertyValue ;
            schema:name "Precipitation" ;
            schema:unitText "mm" ],
        [ a schema:PropertyValue ;
            schema:name "Air temperature" ;
            schema:unitText "°C" ],
        [ a schema:PropertyValue ;
            schema:name "CO2 concentration" ;
            schema:unitText "ppm" ],
        [ a schema:PropertyValue ;
            schema:name "UV radiation" ;
            schema:unitText "W m⁻²" ],
        [ a schema:PropertyValue ;
            schema:name "H2O concentration" ;
            schema:unitText "ppth" ],
        [ a schema:PropertyValue ;
            schema:name "Relative humidity" ;
            schema:unitText "%" ],
        [ a schema:PropertyValue ;
            schema:name "Global radiation" ;
            schema:unitText "W m⁻²" ],
        [ a schema:PropertyValue ;
            schema:name "Net radiation" ;
            schema:unitText "W m⁻²" ],
        [ a schema:PropertyValue ;
            schema:name "NOx concentration" ;
            schema:unitText "ppb" ],
        [ a schema:PropertyValue ;
            schema:name "NO concentration" ;
            schema:unitText "ppb" ] ;
    schema:version "1.0" ;
    owl:versionInfo "1.0" ;
    dcat:accessURL <https://urn.fi/urn:nbn:fi:att:8b3c67b4-22c0-4589-be00-a3d0341064d5> ;
    dcat:distribution <https://urn.fi/urn:nbn:fi:att:8b3c67b4-22c0-4589-be00-a3d0341064d5> ;
    dcat:keyword "SmartSMEAR",
        "air pollution",
        "air temperature",
        "relative humidity",
        "soil temperature",
        "trace gases" ;
    dcat:landingPage <https://urn.fi/urn:nbn:fi:att:8b3c67b4-22c0-4589-be00-a3d0341064d5> ;
    dcat:theme "varrio-subarctic-research-station" .