A Pan-Arctic Algorithm to Estimate Dissolved Organic Carbon Concentrations From Colored Dissolved Organic Matter Spectral Absorption
Sampling for dissolved organic carbon (DOC) in the Arctic is challenging given the limited access and because it is not yet possible to measure with instruments deployed in situ. Compared to DOC, colored dissolved organic matter (CDOM) absorption spectroscopy is an easy-to-measure, relatively quick...
Published in: | Geophysical Research Letters |
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2023
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Online Access: | https://orbit.dtu.dk/en/publications/c538fdb5-f4c4-4aa1-866b-928233ef3278 https://doi.org/10.1029/2023GL105028 https://backend.orbit.dtu.dk/ws/files/339541430/Gonc_alves-Araujo_etal_2023_GRL_CDOM_DOC_algorithm.pdf |
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ftdtupubl:oai:pure.atira.dk:publications/c538fdb5-f4c4-4aa1-866b-928233ef3278 2024-02-11T09:59:28+01:00 A Pan-Arctic Algorithm to Estimate Dissolved Organic Carbon Concentrations From Colored Dissolved Organic Matter Spectral Absorption Gonçalves-Araujo, Rafael Granskog, Mats A. Osburn, Christopher L. Kowalczuk, Piotr Stedmon, Colin A. 2023 application/pdf https://orbit.dtu.dk/en/publications/c538fdb5-f4c4-4aa1-866b-928233ef3278 https://doi.org/10.1029/2023GL105028 https://backend.orbit.dtu.dk/ws/files/339541430/Gonc_alves-Araujo_etal_2023_GRL_CDOM_DOC_algorithm.pdf eng eng https://orbit.dtu.dk/en/publications/c538fdb5-f4c4-4aa1-866b-928233ef3278 info:eu-repo/semantics/openAccess Gonçalves-Araujo , R , Granskog , M A , Osburn , C L , Kowalczuk , P & Stedmon , C A 2023 , ' A Pan-Arctic Algorithm to Estimate Dissolved Organic Carbon Concentrations From Colored Dissolved Organic Matter Spectral Absorption ' , Geophysical Research Letters , vol. 50 , no. 21 , e2023GL105028 . https://doi.org/10.1029/2023GL105028 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2023 ftdtupubl https://doi.org/10.1029/2023GL105028 2024-01-25T00:04:18Z Sampling for dissolved organic carbon (DOC) in the Arctic is challenging given the limited access and because it is not yet possible to measure with instruments deployed in situ. Compared to DOC, colored dissolved organic matter (CDOM) absorption spectroscopy is an easy-to-measure, relatively quick and cost-effective approach which is often closely related to DOC concentrations in water samples. Here we present an algorithm based on quantitative and qualitative metrics of CDOM to provide DOC estimates derived from a Pan-Arctic data set ( n = 3,302) spanning rivers to deep ocean, with DOC ranging between 31 and 1,958 μM. The algorithm provided robust DOC estimates ( r 2 = 0.94; p < 0.0001) and could reproduce DOC profiles and mixing plots across different locations in the Arctic Ocean. Besides its simplicity, this method is capable of capturing the extremely broad range of DOC within the strong gradients observed between Arctic riverine and marine systems. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Technical University of Denmark: DTU Orbit Arctic Arctic Ocean Geophysical Research Letters 50 21 |
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collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Gonçalves-Araujo, Rafael Granskog, Mats A. Osburn, Christopher L. Kowalczuk, Piotr Stedmon, Colin A. A Pan-Arctic Algorithm to Estimate Dissolved Organic Carbon Concentrations From Colored Dissolved Organic Matter Spectral Absorption |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
Sampling for dissolved organic carbon (DOC) in the Arctic is challenging given the limited access and because it is not yet possible to measure with instruments deployed in situ. Compared to DOC, colored dissolved organic matter (CDOM) absorption spectroscopy is an easy-to-measure, relatively quick and cost-effective approach which is often closely related to DOC concentrations in water samples. Here we present an algorithm based on quantitative and qualitative metrics of CDOM to provide DOC estimates derived from a Pan-Arctic data set ( n = 3,302) spanning rivers to deep ocean, with DOC ranging between 31 and 1,958 μM. The algorithm provided robust DOC estimates ( r 2 = 0.94; p < 0.0001) and could reproduce DOC profiles and mixing plots across different locations in the Arctic Ocean. Besides its simplicity, this method is capable of capturing the extremely broad range of DOC within the strong gradients observed between Arctic riverine and marine systems. |
format |
Article in Journal/Newspaper |
author |
Gonçalves-Araujo, Rafael Granskog, Mats A. Osburn, Christopher L. Kowalczuk, Piotr Stedmon, Colin A. |
author_facet |
Gonçalves-Araujo, Rafael Granskog, Mats A. Osburn, Christopher L. Kowalczuk, Piotr Stedmon, Colin A. |
author_sort |
Gonçalves-Araujo, Rafael |
title |
A Pan-Arctic Algorithm to Estimate Dissolved Organic Carbon Concentrations From Colored Dissolved Organic Matter Spectral Absorption |
title_short |
A Pan-Arctic Algorithm to Estimate Dissolved Organic Carbon Concentrations From Colored Dissolved Organic Matter Spectral Absorption |
title_full |
A Pan-Arctic Algorithm to Estimate Dissolved Organic Carbon Concentrations From Colored Dissolved Organic Matter Spectral Absorption |
title_fullStr |
A Pan-Arctic Algorithm to Estimate Dissolved Organic Carbon Concentrations From Colored Dissolved Organic Matter Spectral Absorption |
title_full_unstemmed |
A Pan-Arctic Algorithm to Estimate Dissolved Organic Carbon Concentrations From Colored Dissolved Organic Matter Spectral Absorption |
title_sort |
pan-arctic algorithm to estimate dissolved organic carbon concentrations from colored dissolved organic matter spectral absorption |
publishDate |
2023 |
url |
https://orbit.dtu.dk/en/publications/c538fdb5-f4c4-4aa1-866b-928233ef3278 https://doi.org/10.1029/2023GL105028 https://backend.orbit.dtu.dk/ws/files/339541430/Gonc_alves-Araujo_etal_2023_GRL_CDOM_DOC_algorithm.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Arctic Ocean |
op_source |
Gonçalves-Araujo , R , Granskog , M A , Osburn , C L , Kowalczuk , P & Stedmon , C A 2023 , ' A Pan-Arctic Algorithm to Estimate Dissolved Organic Carbon Concentrations From Colored Dissolved Organic Matter Spectral Absorption ' , Geophysical Research Letters , vol. 50 , no. 21 , e2023GL105028 . https://doi.org/10.1029/2023GL105028 |
op_relation |
https://orbit.dtu.dk/en/publications/c538fdb5-f4c4-4aa1-866b-928233ef3278 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2023GL105028 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
21 |
_version_ |
1790595362777464832 |