@prefix dcat: . @prefix dct: . @prefix foaf: . @prefix gsp: . @prefix locn: . @prefix owl: . @prefix schema: . @prefix xsd: . a schema:DataDownload, schema:Dataset, dcat:Dataset, dcat:Distribution, foaf:Document ; dct:bibliographicCitation "Mazoyer, F., Rautio, M., Laurion, I. 2024. Data from a photochemical and biological degradation experiment carried out on dissolved organic matter from thermokarstic ponds representing a gradient of erosion and terrestrial inputs, Bylot Island, Nunavut, Canada., v. 1.0. Nordicana D136, doi: 10.5885/45909CE-7A737542A70C4382." ; dct:contributor "nordicana-d" ; dct:description "These data originate from a dissolved organic matter (DOM) degradation experiment carried out at Bylot Island (Qarlikturvik Valley, 73°09’N, 79°58’W), in the eastern Canadian Arctic. The site is a thick peaty terrain underlain with continuous syngenetic permafrost and structured in ice-wedge polygons. It is covered with thousands of shallow ponds forming a typical polygonal tundra landscape. Water was sampled from 6 thermokarst ponds and a 14-day incubation was carried out between 3rd and 16th July 2017 at the water surface. Water was filtered and distributed into bottles exposed to sunlight or covered from it to generate treatments and evaluate the efficiency of DOM photodegradation and biodegradation. Dissolved organic carbon, along with optical variables characterizing the chromophoric fraction of DOM (a320, SUVA254, fluorescent PARAFAC components…) and microbial abundance, were measured at the beginning and end of the incubation. The originality of the study is that ponds were selected to obtain a gradient of terrestrial inputs from surrounding eroding permafrost soil, including two erosive ice-wedge trough ponds, two stable ice-wedge trough ponds and two coalescent polygon ponds." ; dct:format "HTML" ; dct:identifier "https://nordicana.cen.ulaval.ca/en/publication?doi=10.5885%2F45909CE-7A737542A70C4382" ; dct:issued "2026-05-21T16:37:52.204816"^^xsd:dateTime, "2026-05-21T16:37:52.334932"^^xsd:dateTime ; dct:modified "2026-05-21T17:04:24.220276"^^xsd:dateTime, "2026-05-21T21:32:54.624547"^^xsd:dateTime ; dct:publisher [ a foaf:Agent ; foaf:homepage ; foaf:name "Nordicana D" ], [ a foaf:Agent ; foaf:homepage ; foaf:name "Nordicana D" ] ; dct:spatial [ a dct:Location ; locn:geometry "POINT (-79.9830 73.1500)"^^gsp:wktLiteral ] ; dct:temporal [ a dct:PeriodOfTime ; dcat:endDate "2017-07-16"^^xsd:date ; dcat:startDate "2017-07-03"^^xsd:date ], [ a dct:PeriodOfTime ; dcat:endDate "2017-07-16"^^xsd:date ; dcat:startDate "2017-07-03"^^xsd:date ] ; dct:title "Data from a photochemical and biological degradation experiment carried out on dissolved organic matter from thermokarstic ponds representing a gradient of erosion and terrestrial inputs, Bylot Island, Nunavut, Canada." ; schema:about [ a schema:Thing ; schema:name "sun-earth-interactions" ; schema:url "https://dataportal.eu-interact.org/group/f7d4c91a-ba90-4135-ac6e-90def093faed" ], [ a schema:Thing ; schema:name "cen-whapmagoostui-kuujuarapik-research-station" ] ; schema:citation "Mazoyer, F., Rautio, M., Laurion, I. 2024. Data from a photochemical and biological degradation experiment carried out on dissolved organic matter from thermokarstic ponds representing a gradient of erosion and terrestrial inputs, Bylot Island, Nunavut, Canada., v. 1.0. Nordicana D136, doi: 10.5885/45909CE-7A737542A70C4382." ; schema:contributor "nordicana-d" ; schema:creator [ a schema:Organization ; schema:contactPoint [ a schema:ContactPoint ; schema:contactType "customer service" ; schema:name "Centre d’études Nordiques (CEN: Centre for Northern Studies)" ; schema:url "https://nordicana.cen.ulaval.ca/en/publication?doi=10.5885%2F45909CE-7A737542A70C4382" ] ; schema:name "Centre d’études Nordiques (CEN: Centre for Northern Studies)" ] ; schema:dateModified "2024-07-25", "2024-07-25T00:00:00" ; schema:datePublished "2024-07-25", "2024-07-25T00:00:00" ; schema:description "These data originate from a dissolved organic matter (DOM) degradation experiment carried out at Bylot Island (Qarlikturvik Valley, 73°09’N, 79°58’W), in the eastern Canadian Arctic. The site is a thick peaty terrain underlain with continuous syngenetic permafrost and structured in ice-wedge polygons. It is covered with thousands of shallow ponds forming a typical polygonal tundra landscape. Water was sampled from 6 thermokarst ponds and a 14-day incubation was carried out between 3rd and 16th July 2017 at the water surface. Water was filtered and distributed into bottles exposed to sunlight or covered from it to generate treatments and evaluate the efficiency of DOM photodegradation and biodegradation. Dissolved organic carbon, along with optical variables characterizing the chromophoric fraction of DOM (a320, SUVA254, fluorescent PARAFAC components…) and microbial abundance, were measured at the beginning and end of the incubation. The originality of the study is that ponds were selected to obtain a gradient of terrestrial inputs from surrounding eroding permafrost soil, including two erosive ice-wedge trough ponds, two stable ice-wedge trough ponds and two coalescent polygon ponds." ; schema:distribution ; schema:encodingFormat "HTML" ; schema:identifier "https://nordicana.cen.ulaval.ca/en/publication?doi=10.5885%2F45909CE-7A737542A70C4382" ; schema:keywords "Arctic", "Biodegradation", "Browning", "Climate warming", "Dissolved organic matter", "In situ incubation", "Microcosm", "PARAFAC", "Permafrost erosion", "Photodegradation", "Thermokarst pond" ; schema:license "https://nordicana.cen.ulaval.ca/en/terms-of-use" ; schema:name "Data from a photochemical and biological degradation experiment carried out on dissolved organic matter from thermokarstic ponds representing a gradient of erosion and terrestrial inputs, Bylot Island, Nunavut, Canada." ; schema:provider [ a schema:Organization ; schema:name "Centre d'études nordiques (CEN)" ; schema:url "https://www.cen.ulaval.ca/" ] ; schema:publisher [ a schema:Organization ; schema:contactPoint [ a schema:ContactPoint ; schema:contactType "customer service" ; schema:name "Nordicana D" ; schema:url "https://nordicana.cen.ulaval.ca" ] ; schema:name "Nordicana D" ] ; schema:spatialCoverage [ a schema:Place ; schema:geo [ a schema:GeoShape ; schema:polygon "{\"type\": \"Point\", \"coordinates\": [-79.983, 73.15]}" ] ] ; schema:temporalCoverage "2017-07-03/2017-07-16" ; schema:url "https://nordicana.cen.ulaval.ca/en/publication?doi=10.5885%2F45909CE-7A737542A70C4382" ; schema:variableMeasured [ a schema:PropertyValue ; schema:name "Time" ] ; schema:version "1.0" ; owl:versionInfo "1.0" ; dcat:accessURL ; dcat:distribution ; dcat:keyword "Arctic", "Biodegradation", "Browning", "Climate warming", "Dissolved organic matter", "In situ incubation", "Microcosm", "PARAFAC", "Permafrost erosion", "Photodegradation", "Thermokarst pond" ; dcat:landingPage ; dcat:theme "cen-whapmagoostui-kuujuarapik-research-station" .