@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 "2026-05-20T13:46:26.776895"^^xsd:dateTime,
        "2026-05-20T16:23:17.750291"^^xsd:dateTime ;
    dct:modified "2026-05-20T16:45:02.007581"^^xsd:dateTime,
        "2026-05-24T21:37:21.848657"^^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.dev.inkode.org/group/30a2f969-5b96-4b09-9b3b-14da3c16f146" ],
        [ a schema:Thing ;
            schema:name "land-surface" ;
            schema:url "https://dataportal.dev.inkode.org/group/3cffa05f-57a4-4af9-87b7-4f853adc96bc" ] ;
    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 "2026-05-24T21:37:21.848657" ;
    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 "Air pressure" ;
            schema:unitText "hPa" ],
        [ a schema:PropertyValue ;
            schema:name "Wind speed" ;
            schema:unitText "m s⁻¹" ],
        [ a schema:PropertyValue ;
            schema:name "SO2 concentration" ;
            schema:unitText "ppb" ],
        [ 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 "Rainfall" ;
            schema:unitText "mm" ],
        [ a schema:PropertyValue ;
            schema:name "CO2 concentration" ;
            schema:unitText "ppm" ],
        [ a schema:PropertyValue ;
            schema:name "NOx concentration" ;
            schema:unitText "ppb" ],
        [ a schema:PropertyValue ;
            schema:name "Soil water content" ;
            schema:unitText "m³ m⁻³" ],
        [ 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 "WMO weather code" ],
        [ a schema:PropertyValue ;
            schema:name "Air temperature" ;
            schema:unitText "°C" ],
        [ a schema:PropertyValue ;
            schema:name "NO concentration" ;
            schema:unitText "ppb" ],
        [ a schema:PropertyValue ;
            schema:name "Relative humidity" ;
            schema:unitText "%" ],
        [ a schema:PropertyValue ;
            schema:name "Precipitation" ;
            schema:unitText "mm" ],
        [ a schema:PropertyValue ;
            schema:name "Wind direction" ;
            schema:unitText "°" ],
        [ a schema:PropertyValue ;
            schema:name "O3 concentration" ;
            schema:unitText "ppb" ],
        [ a schema:PropertyValue ;
            schema:name "Photosynthetically active radiation" ;
            schema:unitText "µmol m⁻² s⁻¹" ],
        [ a schema:PropertyValue ;
            schema:name "Soil temperature" ;
            schema:unitText "°C" ],
        [ a schema:PropertyValue ;
            schema:name "Snow depth" ;
            schema:unitText "cm" ] ;
    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" .