Seasonal changes in the optical properties of dissolved organic matter (DOM) in large Arctic rivers
Arctic rivers deliver over 10% of the annual global river discharge yet little is known about the seasonal fluctuations in the quantity and quality of terrigenous dissolved organic matter (tDOM). A good constraint on such fluctuations is paramount to understand the role that climate change may have...
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ftdtupubl:oai:pure.atira.dk:publications/3fb68f6b-2554-46ee-8a09-42da92a08b28 2023-05-15T14:25:21+02:00 Seasonal changes in the optical properties of dissolved organic matter (DOM) in large Arctic rivers Walker, S.A. Amon, R.M. Stedmon, Colin 2012 https://orbit.dtu.dk/en/publications/3fb68f6b-2554-46ee-8a09-42da92a08b28 http://www.sgmeet.com/osm2012/viewabstract2.asp?AbstractID=12416 eng eng info:eu-repo/semantics/restrictedAccess Walker , S A , Amon , R M & Stedmon , C 2012 , ' Seasonal changes in the optical properties of dissolved organic matter (DOM) in large Arctic rivers ' , Ocean Sciences Meeting 2012 , Salt Lake City , United States , 20/02/2012 - 24/02/2012 . < http://www.sgmeet.com/osm2012/viewabstract2.asp?AbstractID=12416 > /dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action conferenceObject 2012 ftdtupubl 2022-08-14T08:13:22Z Arctic rivers deliver over 10% of the annual global river discharge yet little is known about the seasonal fluctuations in the quantity and quality of terrigenous dissolved organic matter (tDOM). A good constraint on such fluctuations is paramount to understand the role that climate change may have on tDOM input to the Arctic Ocean. To understand such changes the optical properties of colored tDOM (tCDOM) were studied. Samples were collected over several seasonal cycles from the six largest Arctic Rivers as part of the PARTNERS project. This unique dataset is the first of its kind capturing seasonal trends in Arctic river tCDOM composition. Parallel Factor Analysis was used to decompose the combined tCDOM fluorescence signal into five independent model components. The relationship of individual fluorescence components to dissolved organic carbon, lignin phenol concentrations, and the 14C-DOC age were explored. This study demonstrates the usefulness and limits of CDOM as a proxy to understand seasonal and longer term changes in the quantity and quality of Arctic river tDOM Conference Object Arctic Arctic Arctic Ocean Climate change Technical University of Denmark: DTU Orbit Arctic Arctic Ocean |
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Open Polar |
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Technical University of Denmark: DTU Orbit |
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ftdtupubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action Walker, S.A. Amon, R.M. Stedmon, Colin Seasonal changes in the optical properties of dissolved organic matter (DOM) in large Arctic rivers |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action |
description |
Arctic rivers deliver over 10% of the annual global river discharge yet little is known about the seasonal fluctuations in the quantity and quality of terrigenous dissolved organic matter (tDOM). A good constraint on such fluctuations is paramount to understand the role that climate change may have on tDOM input to the Arctic Ocean. To understand such changes the optical properties of colored tDOM (tCDOM) were studied. Samples were collected over several seasonal cycles from the six largest Arctic Rivers as part of the PARTNERS project. This unique dataset is the first of its kind capturing seasonal trends in Arctic river tCDOM composition. Parallel Factor Analysis was used to decompose the combined tCDOM fluorescence signal into five independent model components. The relationship of individual fluorescence components to dissolved organic carbon, lignin phenol concentrations, and the 14C-DOC age were explored. This study demonstrates the usefulness and limits of CDOM as a proxy to understand seasonal and longer term changes in the quantity and quality of Arctic river tDOM |
format |
Conference Object |
author |
Walker, S.A. Amon, R.M. Stedmon, Colin |
author_facet |
Walker, S.A. Amon, R.M. Stedmon, Colin |
author_sort |
Walker, S.A. |
title |
Seasonal changes in the optical properties of dissolved organic matter (DOM) in large Arctic rivers |
title_short |
Seasonal changes in the optical properties of dissolved organic matter (DOM) in large Arctic rivers |
title_full |
Seasonal changes in the optical properties of dissolved organic matter (DOM) in large Arctic rivers |
title_fullStr |
Seasonal changes in the optical properties of dissolved organic matter (DOM) in large Arctic rivers |
title_full_unstemmed |
Seasonal changes in the optical properties of dissolved organic matter (DOM) in large Arctic rivers |
title_sort |
seasonal changes in the optical properties of dissolved organic matter (dom) in large arctic rivers |
publishDate |
2012 |
url |
https://orbit.dtu.dk/en/publications/3fb68f6b-2554-46ee-8a09-42da92a08b28 http://www.sgmeet.com/osm2012/viewabstract2.asp?AbstractID=12416 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Climate change |
genre_facet |
Arctic Arctic Arctic Ocean Climate change |
op_source |
Walker , S A , Amon , R M & Stedmon , C 2012 , ' Seasonal changes in the optical properties of dissolved organic matter (DOM) in large Arctic rivers ' , Ocean Sciences Meeting 2012 , Salt Lake City , United States , 20/02/2012 - 24/02/2012 . < http://www.sgmeet.com/osm2012/viewabstract2.asp?AbstractID=12416 > |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766297761254211584 |