@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 "varrio-subarctic-research-station" ],
        [ 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" ] ;
    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 "CO2 concentration" ;
            schema:unitText "ppm" ],
        [ a schema:PropertyValue ;
            schema:name "UV radiation" ;
            schema:unitText "W m⁻²" ],
        [ a schema:PropertyValue ;
            schema:name "Snow depth" ;
            schema:unitText "cm" ],
        [ a schema:PropertyValue ;
            schema:name "Net radiation" ;
            schema:unitText "W m⁻²" ],
        [ a schema:PropertyValue ;
            schema:name "WMO weather code" ],
        [ a schema:PropertyValue ;
            schema:name "Global radiation" ;
            schema:unitText "W m⁻²" ],
        [ a schema:PropertyValue ;
            schema:name "Rainfall" ;
            schema:unitText "mm" ],
        [ a schema:PropertyValue ;
            schema:name "Relative humidity" ;
            schema:unitText "%" ],
        [ a schema:PropertyValue ;
            schema:name "Photosynthetically active radiation" ;
            schema:unitText "µmol m⁻² s⁻¹" ],
        [ a schema:PropertyValue ;
            schema:name "SO2 concentration" ;
            schema:unitText "ppb" ],
        [ a schema:PropertyValue ;
            schema:name "Wind speed" ;
            schema:unitText "m s⁻¹" ],
        [ a schema:PropertyValue ;
            schema:name "Soil temperature" ;
            schema:unitText "°C" ],
        [ a schema:PropertyValue ;
            schema:name "Precipitation" ;
            schema:unitText "mm" ],
        [ a schema:PropertyValue ;
            schema:name "NOx concentration" ;
            schema:unitText "ppb" ],
        [ a schema:PropertyValue ;
            schema:name "Air temperature" ;
            schema:unitText "°C" ],
        [ a schema:PropertyValue ;
            schema:name "Air pressure" ;
            schema:unitText "hPa" ],
        [ a schema:PropertyValue ;
            schema:name "O3 concentration" ;
            schema:unitText "ppb" ],
        [ a schema:PropertyValue ;
            schema:name "H2O concentration" ;
            schema:unitText "ppth" ],
        [ a schema:PropertyValue ;
            schema:name "NO concentration" ;
            schema:unitText "ppb" ],
        [ a schema:PropertyValue ;
            schema:name "Wind direction" ;
            schema:unitText "°" ] ;
    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" .