Dissolved organic carbon investigations from the Kara Sea, supplement to: Köhler, Hayo; Meon, B; Gordeev, Viacheslav V; Spitzy, Alejandro; Amon, Rainer M W (2003): Dissolved organic matter (DOM) in the estuaries of Ob and Yenisei and the adjacent Kara Sea, Russia. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 281-308
Based on observations during four scientific expeditions to the Kara Sea and the Siberian rivers Ob and Yenisei we determined the discharge, distribution and characteristics of dissolved organic matter (DOM). Surface concentrations of dissolved organic carbon (DOC) ranged from 151 IlM C in the north...
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ftdatacite:10.1594/pangaea.736640 2023-05-15T15:18:01+02:00 Dissolved organic carbon investigations from the Kara Sea, supplement to: Köhler, Hayo; Meon, B; Gordeev, Viacheslav V; Spitzy, Alejandro; Amon, Rainer M W (2003): Dissolved organic matter (DOM) in the estuaries of Ob and Yenisei and the adjacent Kara Sea, Russia. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 281-308 Köhler, Hayo Meon, B Gordeev, Viacheslav V Spitzy, Alejandro Amon, Rainer M W 2010 application/zip https://dx.doi.org/10.1594/pangaea.736640 https://doi.pangaea.de/10.1594/PANGAEA.736640 en eng PANGAEA - Data Publisher for Earth & Environmental Science Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Multiple investigations Bucket water sampling Dredge Sampling gear, diverse CTD/Rosette BP00 BP97 BP99 Akademik Boris Petrov Siberian River Run-Off SIRRO Collection article Supplementary Collection of Datasets 2010 ftdatacite https://doi.org/10.1594/pangaea.736640 2021-11-05T12:55:41Z Based on observations during four scientific expeditions to the Kara Sea and the Siberian rivers Ob and Yenisei we determined the discharge, distribution and characteristics of dissolved organic matter (DOM). Surface concentrations of dissolved organic carbon (DOC) ranged from 151 IlM C in the northern Kara Sea to 939 IlM C in the river Ob. The estimated annual mean DOC concentration in the Yenisei (681 IlM C) was slightly higher than in the Ob (640 IlM C). Dissolved organic nitrogen (DON) concentrations typically varied between 5 and 15 IlM N with higher values in the rivers. Freshwater discharge and DOC concentrations experienced pronounced seasonal variations strongly affecting the spatial and temporal distribution of DOM in the Kara Sea. The largely conservative distribution of DOC and DON along the salinity gradient indicated the predominantly refractory character of riverine DOM. This observation was consistent with laboratory experiments, which showed only minor losses due to flocculation processes and bacterial consumption. Optical properties and relatively high C/N ratios (19 to 51) of DO M suggest that a large fraction of river DOM is of terrestrial origin and that phytoplankton contributed little to DOM on the Kara Sea shelf during the sampling periods. Together, the rivers Ob and Yenisei discharge about 8 Tg DOC yr- I into the Kara Sea. Due to the absence of efficient removal mechanisms in these estuaries the majority of riverine DOM appears to pass the estuarine mixing zone and is transported towards the Arctic Ocean. Article in Journal/Newspaper Arctic Arctic Ocean Kara Sea Phytoplankton DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean Kara Sea |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Multiple investigations Bucket water sampling Dredge Sampling gear, diverse CTD/Rosette BP00 BP97 BP99 Akademik Boris Petrov Siberian River Run-Off SIRRO |
spellingShingle |
Multiple investigations Bucket water sampling Dredge Sampling gear, diverse CTD/Rosette BP00 BP97 BP99 Akademik Boris Petrov Siberian River Run-Off SIRRO Köhler, Hayo Meon, B Gordeev, Viacheslav V Spitzy, Alejandro Amon, Rainer M W Dissolved organic carbon investigations from the Kara Sea, supplement to: Köhler, Hayo; Meon, B; Gordeev, Viacheslav V; Spitzy, Alejandro; Amon, Rainer M W (2003): Dissolved organic matter (DOM) in the estuaries of Ob and Yenisei and the adjacent Kara Sea, Russia. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 281-308 |
topic_facet |
Multiple investigations Bucket water sampling Dredge Sampling gear, diverse CTD/Rosette BP00 BP97 BP99 Akademik Boris Petrov Siberian River Run-Off SIRRO |
description |
Based on observations during four scientific expeditions to the Kara Sea and the Siberian rivers Ob and Yenisei we determined the discharge, distribution and characteristics of dissolved organic matter (DOM). Surface concentrations of dissolved organic carbon (DOC) ranged from 151 IlM C in the northern Kara Sea to 939 IlM C in the river Ob. The estimated annual mean DOC concentration in the Yenisei (681 IlM C) was slightly higher than in the Ob (640 IlM C). Dissolved organic nitrogen (DON) concentrations typically varied between 5 and 15 IlM N with higher values in the rivers. Freshwater discharge and DOC concentrations experienced pronounced seasonal variations strongly affecting the spatial and temporal distribution of DOM in the Kara Sea. The largely conservative distribution of DOC and DON along the salinity gradient indicated the predominantly refractory character of riverine DOM. This observation was consistent with laboratory experiments, which showed only minor losses due to flocculation processes and bacterial consumption. Optical properties and relatively high C/N ratios (19 to 51) of DO M suggest that a large fraction of river DOM is of terrestrial origin and that phytoplankton contributed little to DOM on the Kara Sea shelf during the sampling periods. Together, the rivers Ob and Yenisei discharge about 8 Tg DOC yr- I into the Kara Sea. Due to the absence of efficient removal mechanisms in these estuaries the majority of riverine DOM appears to pass the estuarine mixing zone and is transported towards the Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Köhler, Hayo Meon, B Gordeev, Viacheslav V Spitzy, Alejandro Amon, Rainer M W |
author_facet |
Köhler, Hayo Meon, B Gordeev, Viacheslav V Spitzy, Alejandro Amon, Rainer M W |
author_sort |
Köhler, Hayo |
title |
Dissolved organic carbon investigations from the Kara Sea, supplement to: Köhler, Hayo; Meon, B; Gordeev, Viacheslav V; Spitzy, Alejandro; Amon, Rainer M W (2003): Dissolved organic matter (DOM) in the estuaries of Ob and Yenisei and the adjacent Kara Sea, Russia. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 281-308 |
title_short |
Dissolved organic carbon investigations from the Kara Sea, supplement to: Köhler, Hayo; Meon, B; Gordeev, Viacheslav V; Spitzy, Alejandro; Amon, Rainer M W (2003): Dissolved organic matter (DOM) in the estuaries of Ob and Yenisei and the adjacent Kara Sea, Russia. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 281-308 |
title_full |
Dissolved organic carbon investigations from the Kara Sea, supplement to: Köhler, Hayo; Meon, B; Gordeev, Viacheslav V; Spitzy, Alejandro; Amon, Rainer M W (2003): Dissolved organic matter (DOM) in the estuaries of Ob and Yenisei and the adjacent Kara Sea, Russia. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 281-308 |
title_fullStr |
Dissolved organic carbon investigations from the Kara Sea, supplement to: Köhler, Hayo; Meon, B; Gordeev, Viacheslav V; Spitzy, Alejandro; Amon, Rainer M W (2003): Dissolved organic matter (DOM) in the estuaries of Ob and Yenisei and the adjacent Kara Sea, Russia. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 281-308 |
title_full_unstemmed |
Dissolved organic carbon investigations from the Kara Sea, supplement to: Köhler, Hayo; Meon, B; Gordeev, Viacheslav V; Spitzy, Alejandro; Amon, Rainer M W (2003): Dissolved organic matter (DOM) in the estuaries of Ob and Yenisei and the adjacent Kara Sea, Russia. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 281-308 |
title_sort |
dissolved organic carbon investigations from the kara sea, supplement to: köhler, hayo; meon, b; gordeev, viacheslav v; spitzy, alejandro; amon, rainer m w (2003): dissolved organic matter (dom) in the estuaries of ob and yenisei and the adjacent kara sea, russia. in: stein, r; fahl, k; fütterer, d k; galimov, e m & stepanets, o v (eds.), siberian river run-off in the kara sea: characterisation, quantification, variability, and environmental significance, 488 pp. proceedings in marine sciences, elsevier, amsterdam, 6, 281-308 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2010 |
url |
https://dx.doi.org/10.1594/pangaea.736640 https://doi.pangaea.de/10.1594/PANGAEA.736640 |
geographic |
Arctic Arctic Ocean Kara Sea |
geographic_facet |
Arctic Arctic Ocean Kara Sea |
genre |
Arctic Arctic Ocean Kara Sea Phytoplankton |
genre_facet |
Arctic Arctic Ocean Kara Sea Phytoplankton |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.736640 |
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1766348256419250176 |