Subsurface release and transport of dissolved carbon in a discontinuous permafrost region
Subsurface hydrological flow pathways and advection rates through the landscape affect the quantity and timing of hydrological transport of dissolved carbon. This study investigates hydrological carbon transport through the subsurface to streams and how it is affected by the distribution of subsurfa...
Published in: | Hydrology and Earth System Sciences |
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Copernicus Publications
2013
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fttriple:oai:gotriple.eu:oai:doaj.org/article:a8dc7f92c2fe4489bc53fd080d0c90f1 2023-05-15T17:57:27+02:00 Subsurface release and transport of dissolved carbon in a discontinuous permafrost region E. J. Jantze S. W. Lyon G. Destouni 2013-10-01 https://doi.org/10.5194/hess-17-3827-2013 http://www.hydrol-earth-syst-sci.net/17/3827/2013/hess-17-3827-2013.pdf https://doaj.org/article/a8dc7f92c2fe4489bc53fd080d0c90f1 en eng Copernicus Publications doi:10.5194/hess-17-3827-2013 1027-5606 1607-7938 http://www.hydrol-earth-syst-sci.net/17/3827/2013/hess-17-3827-2013.pdf https://doaj.org/article/a8dc7f92c2fe4489bc53fd080d0c90f1 undefined Hydrology and Earth System Sciences, Vol 17, Iss 10, Pp 3827-3839 (2013) envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.5194/hess-17-3827-2013 2023-01-22T19:05:53Z Subsurface hydrological flow pathways and advection rates through the landscape affect the quantity and timing of hydrological transport of dissolved carbon. This study investigates hydrological carbon transport through the subsurface to streams and how it is affected by the distribution of subsurface hydrological pathways and travel times through the landscape. We develop a consistent mechanistic, pathway- and travel time-based modeling approach for release and transport of dissolved organic carbon (DOC) and dissolved inorganic carbon (DIC). The model implications are tested against observations in the subarctic Abiskojokken catchment in northernmost Sweden (68°21' N, 18°49' E) as a field case example of a discontinuous permafrost region. The results show: (a) For DOC, both concentration and load are essentially flow-independent because their dynamics are instead dominated by the annual renewal and depletion. Specifically, the flow independence is the result of the small characteristic DOC respiration-dissolution time scale, in the range of 1 yr, relative to the average travel time of water through the subsurface to the stream. (b) For DIC, the load is highly flow-dependent due to the large characteristic weathering-dissolution time, much larger than 1 yr, relative to the average subsurface water travel time to the stream. This rate relation keeps the DIC concentration essentially flow-independent, and thereby less fluctuating in time than the DIC load. Article in Journal/Newspaper permafrost Subarctic Unknown Hydrology and Earth System Sciences 17 10 3827 3839 |
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envir geo E. J. Jantze S. W. Lyon G. Destouni Subsurface release and transport of dissolved carbon in a discontinuous permafrost region |
topic_facet |
envir geo |
description |
Subsurface hydrological flow pathways and advection rates through the landscape affect the quantity and timing of hydrological transport of dissolved carbon. This study investigates hydrological carbon transport through the subsurface to streams and how it is affected by the distribution of subsurface hydrological pathways and travel times through the landscape. We develop a consistent mechanistic, pathway- and travel time-based modeling approach for release and transport of dissolved organic carbon (DOC) and dissolved inorganic carbon (DIC). The model implications are tested against observations in the subarctic Abiskojokken catchment in northernmost Sweden (68°21' N, 18°49' E) as a field case example of a discontinuous permafrost region. The results show: (a) For DOC, both concentration and load are essentially flow-independent because their dynamics are instead dominated by the annual renewal and depletion. Specifically, the flow independence is the result of the small characteristic DOC respiration-dissolution time scale, in the range of 1 yr, relative to the average travel time of water through the subsurface to the stream. (b) For DIC, the load is highly flow-dependent due to the large characteristic weathering-dissolution time, much larger than 1 yr, relative to the average subsurface water travel time to the stream. This rate relation keeps the DIC concentration essentially flow-independent, and thereby less fluctuating in time than the DIC load. |
format |
Article in Journal/Newspaper |
author |
E. J. Jantze S. W. Lyon G. Destouni |
author_facet |
E. J. Jantze S. W. Lyon G. Destouni |
author_sort |
E. J. Jantze |
title |
Subsurface release and transport of dissolved carbon in a discontinuous permafrost region |
title_short |
Subsurface release and transport of dissolved carbon in a discontinuous permafrost region |
title_full |
Subsurface release and transport of dissolved carbon in a discontinuous permafrost region |
title_fullStr |
Subsurface release and transport of dissolved carbon in a discontinuous permafrost region |
title_full_unstemmed |
Subsurface release and transport of dissolved carbon in a discontinuous permafrost region |
title_sort |
subsurface release and transport of dissolved carbon in a discontinuous permafrost region |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/hess-17-3827-2013 http://www.hydrol-earth-syst-sci.net/17/3827/2013/hess-17-3827-2013.pdf https://doaj.org/article/a8dc7f92c2fe4489bc53fd080d0c90f1 |
genre |
permafrost Subarctic |
genre_facet |
permafrost Subarctic |
op_source |
Hydrology and Earth System Sciences, Vol 17, Iss 10, Pp 3827-3839 (2013) |
op_relation |
doi:10.5194/hess-17-3827-2013 1027-5606 1607-7938 http://www.hydrol-earth-syst-sci.net/17/3827/2013/hess-17-3827-2013.pdf https://doaj.org/article/a8dc7f92c2fe4489bc53fd080d0c90f1 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/hess-17-3827-2013 |
container_title |
Hydrology and Earth System Sciences |
container_volume |
17 |
container_issue |
10 |
container_start_page |
3827 |
op_container_end_page |
3839 |
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1766165879318380544 |