@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 vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762> a dcat:Dataset ;
    dct:description """This dataset provides Synthetic Aperture Radar (SAR) estimates of lake-source methane ebullition flux in mg CH4/m2/d for thousands of lakes in five regions across Alaska. The study regions include the Atqasuk, Barrow Peninsula, Fairbanks, northern Seward Peninsula, and Toolik. L-band SAR backscatter values for early winter lake ice scenes were collected from 2007 to 2010 over 5,143 lakes using the Phased Array type L-band Synthetic Aperture Radar (PALSAR) instrument on the Advanced Land Observing Satellite (ALOS-1) satellite. The backscatter data were combined with field measurements of methane ebullition from 48 study lakes across the five regions to obtain a volumetric flux estimate for each lake. Mean methane gas-fractions from each region were applied to the SAR-based volumetric fluxes to obtain an estimate of methane ebullition mass flux per lake. The data files contain lake perimeters and the lake-specific attributes of lake area, SAR backscatter values and standard errors, volumetric flux with standard errors, mean percent of methane from gas samples, and methane ebullition mass flux.\r
\r
### __Citation__\r
\r
__In order to use these data, you must cite this data set with the following citation:__\r
\r
Engram, M.J., K.W. Anthony, and F.J. Meyer. 2020. ABoVE: SAR-based Methane Ebullition Flux from Lakes, Five Regions, Alaska, 2007-2010. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1790\r
\r
This dataset is openly shared, without restriction, in accordance with the [EOSDIS Data Use Policy](https://earthdata.nasa.gov/earth-observation-data/data-use-policy?_ga=2.88701406.419703260.1676448349-1262327661.1663154735).""" ;
    dct:identifier "DOI: 10.3334/ORNLDAAC/1790" ;
    dct:issued "2023-02-21T09:34:43.823215"^^xsd:dateTime ;
    dct:modified "2024-04-09T13:08:12.426354"^^xsd:dateTime ;
    dct:publisher <https://apgc.awi.de/organization/a6d6c025-ca51-4b03-85da-7683e41b4be7> ;
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    dct:title "SAR-based Methane Ebullition Flux from Lakes, Five Regions, Alaska, 2007-2010" ;
    owl:versionInfo "1.0" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "ORNL DAAC" ;
            vcard:hasEmail <mailto:uso@daac.ornl.gov> ] ;
    dcat:distribution <https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/2b3412ed-bc2e-4b9d-ad00-76bdc523d4aa>,
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    dcat:keyword "Ebullition",
        "Lakes",
        "Methane",
        "Synthetic Aperture Radar" ;
    dcat:landingPage <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/2b3412ed-bc2e-4b9d-ad00-76bdc523d4aa> a dcat:Distribution ;
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    dct:modified "2023-02-21T09:55:09.611202"^^xsd:dateTime ;
    dct:title "Toolik zipped shapefile" ;
    dcat:accessURL <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/4c4eb1f6-18a5-4944-98dc-f41b3d4ac3e6> a dcat:Distribution ;
    dct:description "Must sign in to ORNL DAAC to download" ;
    dct:format "KML" ;
    dct:issued "2023-02-21T09:59:26.842487"^^xsd:dateTime ;
    dct:modified "2023-02-21T10:00:17.471829"^^xsd:dateTime ;
    dct:title "Barrow Peninsula kml file" ;
    dcat:accessURL <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/5d233145-57c7-440e-9214-9c8e586db00c> a dcat:Distribution ;
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    dct:modified "2023-02-21T09:55:23.063244"^^xsd:dateTime ;
    dct:title "SAR-based Lake Methane Ebullition Flux User Guide" ;
    dcat:accessURL <https://daac.ornl.gov/ABOVE/guides/SAR_Methane_Ebullition_AK.html> ;
    dcat:mediaType "text/html" .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/89b90af1-fd4c-452d-a8d5-9f5fa2cb68fd> a dcat:Distribution ;
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    dct:title "Barrow Peninsula zipped shapefile" ;
    dcat:accessURL <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/8c96668b-cdd5-49ae-a1c3-005bc4a7a67f> a dcat:Distribution ;
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    dct:issued "2023-02-21T09:57:45.301685"^^xsd:dateTime ;
    dct:modified "2023-02-21T09:58:29.746941"^^xsd:dateTime ;
    dct:title "Toolik kml file" ;
    dcat:accessURL <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/9fa1e415-8c4b-455b-b4df-0f383cbba0f4> a dcat:Distribution ;
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    dct:issued "2023-02-21T09:57:15.555632"^^xsd:dateTime ;
    dct:modified "2023-02-21T09:57:45.277342"^^xsd:dateTime ;
    dct:title "Atqasuk kml file" ;
    dcat:accessURL <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/a3b5eeb9-e57a-4c84-9585-ccc58a14c87e> a dcat:Distribution ;
    dct:description "Must sign in to ORNL DAAC to download" ;
    dct:format "SHP" ;
    dct:issued "2023-02-21T09:42:18.148128"^^xsd:dateTime ;
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    dct:title "Atqasuk zipped shapefile" ;
    dcat:accessURL <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/c304645a-3c6e-4712-982c-3dbb52e7d546> a dcat:Distribution ;
    dct:description "Must sign in to ORNL DAAC to download" ;
    dct:format "SHP" ;
    dct:issued "2023-02-21T09:47:38.111214"^^xsd:dateTime ;
    dct:modified "2023-02-21T09:48:20.836370"^^xsd:dateTime ;
    dct:title "Fairbanks zipped shapefile" ;
    dcat:accessURL <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/da632c08-b25e-4e07-99e8-292bcb2f9b5b> a dcat:Distribution ;
    dct:description "Must sign in to ORNL DAAC to download" ;
    dct:format "KML" ;
    dct:issued "2023-02-21T09:58:56.674038"^^xsd:dateTime ;
    dct:modified "2023-02-21T09:59:26.809485"^^xsd:dateTime ;
    dct:title "Northern Seward Peninsula kml file" ;
    dcat:accessURL <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/f3c8fda1-590a-4eba-870f-320130ea06ae> a dcat:Distribution ;
    dct:description "Must sign in to ORNL DAAC to download" ;
    dct:format "KML" ;
    dct:issued "2023-02-21T09:58:29.769756"^^xsd:dateTime ;
    dct:modified "2023-02-21T09:58:56.647183"^^xsd:dateTime ;
    dct:title "Fairbanks kml file" ;
    dcat:accessURL <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/dataset/3e8f99b9-fafe-4b35-b4dd-eb9dcf4f8762/resource/f86b088b-294a-4279-8503-0ca5b328cd3a> a dcat:Distribution ;
    dct:description "Must sign in to ORNL DAAC to download" ;
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    dct:modified "2023-02-21T09:49:13.485226"^^xsd:dateTime ;
    dct:title "Northern Seward Peninsula zipped shapefile" ;
    dcat:accessURL <https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> .

<https://apgc.awi.de/organization/a6d6c025-ca51-4b03-85da-7683e41b4be7> a foaf:Agent ;
    foaf:name "ORNL DAAC" .

<https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1790> a foaf:Document .