Carbonaceous material export from Siberian permafrost tracked across the Arctic Shelf using Raman spectroscopy
Selver, Ayça Doğrul (Balikesir Author) Warming-induced erosion of permafrost from Eastern Siberia mobilises large amounts of organic carbon and delivers it to the East Siberian Arctic Shelf (ESAS). In this study Raman spectroscopy of carbonaceous material (CM) was used to characterise, identify and...
Published in: | The Cryosphere |
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Online Access: | https://hdl.handle.net/20.500.12462/5441 https://doi.org/10.5194/tc-12-3293-2018 |
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ftbalikesiruniv:oai:dspace.balikesir.edu.tr:20.500.12462/5441 2023-05-15T15:04:51+02:00 Carbonaceous material export from Siberian permafrost tracked across the Arctic Shelf using Raman spectroscopy Sparkes, Robert B. Maher, Melissa Blewett, Jerome Selver, Ayça Doğrul Gustafsson, Orjan Semiletov, Igor P. van Dongen, Bart E. Mühendislik Fakültesi orcid:0000-0003-0756-0150 orcid:0000-0003-1189-142X 2018 application/pdf https://hdl.handle.net/20.500.12462/5441 https://doi.org/10.5194/tc-12-3293-2018 eng eng Copernicus Gesellschaft MBH 10.5194/tc-12-3293-2018 Cryosphere Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı https://doi.org/10.5194/tc-12-3293-2018 https://hdl.handle.net/20.500.12462/5441 12 10 3293 3309 info:eu-repo/semantics/openAccess Attribution 3.0 United States http://creativecommons.org/licenses/by/3.0/us/ CC-BY Terrigenous Organic-Matter Black Carbon Laptev Sea Old Carbon Terrestrial Ocean Degradation Sediments Graphite River article 2018 ftbalikesiruniv https://doi.org/20.500.12462/5441 https://doi.org/10.5194/tc-12-3293-2018 2022-04-27T05:33:24Z Selver, Ayça Doğrul (Balikesir Author) Warming-induced erosion of permafrost from Eastern Siberia mobilises large amounts of organic carbon and delivers it to the East Siberian Arctic Shelf (ESAS). In this study Raman spectroscopy of carbonaceous material (CM) was used to characterise, identify and track the most recalcitrant fraction of the organic load: 1463 spectra were obtained from surface sediments collected across the ESAS and automatically analysed for their Raman peaks. Spectra were classified by their peak areas and widths into disordered, intermediate, mildly graphitised and highly graphitised groups and the distribution of these classes was investigated across the shelf. Disordered CM was most prevalent in a permafrost core from Kurungnakh Island and from areas known to have high rates of coastal erosion. Sediments from outflows of the Indigirka and Kolyma rivers were generally enriched in intermediate CM. These different sediment sources were identified and distinguished along an E-W transect using their Raman spectra, showing that sediment is not homogenised on the ESAS. Distal samples, from the ESAS slope, contained greater amounts of highly graphitised CM compared to the rest of the shelf, attributable to degradation or, more likely, winnowing processes offshore. The presence of all four spectral classes in distal sediments demonstrates that CM degrades much more slowly than lipid biomarkers and other traditional tracers of terrestrial organic matter and shows that alongside degradation of the more labile organic matter component there is also conservative transport of carbon across the shelf toward the deep ocean. Thus, carbon cycle calculations must consider the nature as well as the amount of carbon liberated from thawing permafrost and other erosional settings. NERC - NE/I024798/1 - NE/P006221/1 MMU studentship MMU-EERC research grant Swedish Research Council (VR) 621-2007-4631 621-2013-5297 621-2004-4039 Swedish Research Council (VR) (Distinguished Professors Grant) 2017-01601 European Research Council (ERC-AdG CC-TOP project) 695331 Government of the Russian Federation 14.Z50.31.0012 Knut and Alice Wallenberg Foundation Far Eastern Branch of the Russian Academy of Sciences US National Oceanic and Atmospheric Administration (OAR Climate Program Office) NA08OAR4600758 Russian Foundation of Basic Research 08-05-13572 08-05-00191-a 07-05-00050a Swedish Polar Research Secretariat Nordic Council of Ministers US National Science Foundation OPP ARC 0909546 Article in Journal/Newspaper Arctic black carbon laptev Laptev Sea permafrost Swedish Polar Research Secretariat Siberia Balıkesir University Institutional Repository (DSpace@Balıkesir) Arctic Indigirka ENVELOPE(149.609,149.609,70.929,70.929) Kolyma ENVELOPE(161.000,161.000,69.500,69.500) Laptev Sea The Cryosphere 12 10 3293 3309 |
institution |
Open Polar |
collection |
Balıkesir University Institutional Repository (DSpace@Balıkesir) |
op_collection_id |
ftbalikesiruniv |
language |
English |
topic |
Terrigenous Organic-Matter Black Carbon Laptev Sea Old Carbon Terrestrial Ocean Degradation Sediments Graphite River |
spellingShingle |
Terrigenous Organic-Matter Black Carbon Laptev Sea Old Carbon Terrestrial Ocean Degradation Sediments Graphite River Sparkes, Robert B. Maher, Melissa Blewett, Jerome Selver, Ayça Doğrul Gustafsson, Orjan Semiletov, Igor P. van Dongen, Bart E. Carbonaceous material export from Siberian permafrost tracked across the Arctic Shelf using Raman spectroscopy |
topic_facet |
Terrigenous Organic-Matter Black Carbon Laptev Sea Old Carbon Terrestrial Ocean Degradation Sediments Graphite River |
description |
Selver, Ayça Doğrul (Balikesir Author) Warming-induced erosion of permafrost from Eastern Siberia mobilises large amounts of organic carbon and delivers it to the East Siberian Arctic Shelf (ESAS). In this study Raman spectroscopy of carbonaceous material (CM) was used to characterise, identify and track the most recalcitrant fraction of the organic load: 1463 spectra were obtained from surface sediments collected across the ESAS and automatically analysed for their Raman peaks. Spectra were classified by their peak areas and widths into disordered, intermediate, mildly graphitised and highly graphitised groups and the distribution of these classes was investigated across the shelf. Disordered CM was most prevalent in a permafrost core from Kurungnakh Island and from areas known to have high rates of coastal erosion. Sediments from outflows of the Indigirka and Kolyma rivers were generally enriched in intermediate CM. These different sediment sources were identified and distinguished along an E-W transect using their Raman spectra, showing that sediment is not homogenised on the ESAS. Distal samples, from the ESAS slope, contained greater amounts of highly graphitised CM compared to the rest of the shelf, attributable to degradation or, more likely, winnowing processes offshore. The presence of all four spectral classes in distal sediments demonstrates that CM degrades much more slowly than lipid biomarkers and other traditional tracers of terrestrial organic matter and shows that alongside degradation of the more labile organic matter component there is also conservative transport of carbon across the shelf toward the deep ocean. Thus, carbon cycle calculations must consider the nature as well as the amount of carbon liberated from thawing permafrost and other erosional settings. NERC - NE/I024798/1 - NE/P006221/1 MMU studentship MMU-EERC research grant Swedish Research Council (VR) 621-2007-4631 621-2013-5297 621-2004-4039 Swedish Research Council (VR) (Distinguished Professors Grant) 2017-01601 European Research Council (ERC-AdG CC-TOP project) 695331 Government of the Russian Federation 14.Z50.31.0012 Knut and Alice Wallenberg Foundation Far Eastern Branch of the Russian Academy of Sciences US National Oceanic and Atmospheric Administration (OAR Climate Program Office) NA08OAR4600758 Russian Foundation of Basic Research 08-05-13572 08-05-00191-a 07-05-00050a Swedish Polar Research Secretariat Nordic Council of Ministers US National Science Foundation OPP ARC 0909546 |
author2 |
Mühendislik Fakültesi orcid:0000-0003-0756-0150 orcid:0000-0003-1189-142X |
format |
Article in Journal/Newspaper |
author |
Sparkes, Robert B. Maher, Melissa Blewett, Jerome Selver, Ayça Doğrul Gustafsson, Orjan Semiletov, Igor P. van Dongen, Bart E. |
author_facet |
Sparkes, Robert B. Maher, Melissa Blewett, Jerome Selver, Ayça Doğrul Gustafsson, Orjan Semiletov, Igor P. van Dongen, Bart E. |
author_sort |
Sparkes, Robert B. |
title |
Carbonaceous material export from Siberian permafrost tracked across the Arctic Shelf using Raman spectroscopy |
title_short |
Carbonaceous material export from Siberian permafrost tracked across the Arctic Shelf using Raman spectroscopy |
title_full |
Carbonaceous material export from Siberian permafrost tracked across the Arctic Shelf using Raman spectroscopy |
title_fullStr |
Carbonaceous material export from Siberian permafrost tracked across the Arctic Shelf using Raman spectroscopy |
title_full_unstemmed |
Carbonaceous material export from Siberian permafrost tracked across the Arctic Shelf using Raman spectroscopy |
title_sort |
carbonaceous material export from siberian permafrost tracked across the arctic shelf using raman spectroscopy |
publisher |
Copernicus Gesellschaft MBH |
publishDate |
2018 |
url |
https://hdl.handle.net/20.500.12462/5441 https://doi.org/10.5194/tc-12-3293-2018 |
long_lat |
ENVELOPE(149.609,149.609,70.929,70.929) ENVELOPE(161.000,161.000,69.500,69.500) |
geographic |
Arctic Indigirka Kolyma Laptev Sea |
geographic_facet |
Arctic Indigirka Kolyma Laptev Sea |
genre |
Arctic black carbon laptev Laptev Sea permafrost Swedish Polar Research Secretariat Siberia |
genre_facet |
Arctic black carbon laptev Laptev Sea permafrost Swedish Polar Research Secretariat Siberia |
op_relation |
10.5194/tc-12-3293-2018 Cryosphere Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı https://doi.org/10.5194/tc-12-3293-2018 https://hdl.handle.net/20.500.12462/5441 12 10 3293 3309 |
op_rights |
info:eu-repo/semantics/openAccess Attribution 3.0 United States http://creativecommons.org/licenses/by/3.0/us/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.12462/5441 https://doi.org/10.5194/tc-12-3293-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
10 |
container_start_page |
3293 |
op_container_end_page |
3309 |
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1766336599543513088 |