Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation
The attenuation coefficient b is one of the most common ways to describe how strong the carbon flux is attenuated throughout the water column. Therefore, b is an essential input variable in many carbon flux and climate models. Marsay et al. (2015, https://doi.org/10.1073/pnas.1415311112) proposed th...
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ftawi:oai:epic.awi.de:56795 2024-09-15T17:51:25+00:00 Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation Wiedmann, Ingrid Ceballos-Romero, Elena Villa-Alfageme, Maria Renner, A Dybwad, Christine van der Jagt, Helga Svensen, Camilla Assmy, Philipp Wiktor, J. Tatarek, A. Rozanska-Pluta, M. Iversen, Morten 2020-07-28 https://epic.awi.de/id/eprint/56795/ https://hdl.handle.net/10013/epic.9ef04e0e-e0c2-4cbb-a94e-da5284ce31de unknown Wiley Wiedmann, I. , Ceballos-Romero, E. , Villa-Alfageme, M. , Renner, A. , Dybwad, C. , van der Jagt, H. , Svensen, C. , Assmy, P. , Wiktor, J. , Tatarek, A. , Rozanska-Pluta, M. and Iversen, M. orcid:0000-0002-5287-1110 (2020) Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation , Geophysical Research Letters, 47 (14), e2020GL087465 . doi:0.1029/2020GL087465 , hdl:10013/epic.9ef04e0e-e0c2-4cbb-a94e-da5284ce31de EPIC3Geophysical Research Letters, Wiley, 47(14), pp. e2020GL087465, ISSN: 0094-8276 Article NonPeerReviewed 2020 ftawi 2024-06-24T04:28:46Z The attenuation coefficient b is one of the most common ways to describe how strong the carbon flux is attenuated throughout the water column. Therefore, b is an essential input variable in many carbon flux and climate models. Marsay et al. (2015, https://doi.org/10.1073/pnas.1415311112) proposed that the median surface water temperature (0–500 m) may be a predictor of b, but our observations from Arctic waters challenge this hypothesis. We found a highly variable attenuation coefficient (b = 0.43–1.84) in cold Arctic waters (<4.1 °C). Accordingly, we suggest that water temperature is not a globally valid predictor of the attenuation coefficient. We advocate instead that the phytoplankton composition and especially the relative abundance of diatoms can be used to parametrize the carbon flux attenuation in local and global carbon flux models. Article in Journal/Newspaper Arctic Phytoplankton Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
The attenuation coefficient b is one of the most common ways to describe how strong the carbon flux is attenuated throughout the water column. Therefore, b is an essential input variable in many carbon flux and climate models. Marsay et al. (2015, https://doi.org/10.1073/pnas.1415311112) proposed that the median surface water temperature (0–500 m) may be a predictor of b, but our observations from Arctic waters challenge this hypothesis. We found a highly variable attenuation coefficient (b = 0.43–1.84) in cold Arctic waters (<4.1 °C). Accordingly, we suggest that water temperature is not a globally valid predictor of the attenuation coefficient. We advocate instead that the phytoplankton composition and especially the relative abundance of diatoms can be used to parametrize the carbon flux attenuation in local and global carbon flux models. |
format |
Article in Journal/Newspaper |
author |
Wiedmann, Ingrid Ceballos-Romero, Elena Villa-Alfageme, Maria Renner, A Dybwad, Christine van der Jagt, Helga Svensen, Camilla Assmy, Philipp Wiktor, J. Tatarek, A. Rozanska-Pluta, M. Iversen, Morten |
spellingShingle |
Wiedmann, Ingrid Ceballos-Romero, Elena Villa-Alfageme, Maria Renner, A Dybwad, Christine van der Jagt, Helga Svensen, Camilla Assmy, Philipp Wiktor, J. Tatarek, A. Rozanska-Pluta, M. Iversen, Morten Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation |
author_facet |
Wiedmann, Ingrid Ceballos-Romero, Elena Villa-Alfageme, Maria Renner, A Dybwad, Christine van der Jagt, Helga Svensen, Camilla Assmy, Philipp Wiktor, J. Tatarek, A. Rozanska-Pluta, M. Iversen, Morten |
author_sort |
Wiedmann, Ingrid |
title |
Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation |
title_short |
Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation |
title_full |
Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation |
title_fullStr |
Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation |
title_full_unstemmed |
Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation |
title_sort |
arctic observations identify phytoplankton community composition as driver of carbon flux attenuation |
publisher |
Wiley |
publishDate |
2020 |
url |
https://epic.awi.de/id/eprint/56795/ https://hdl.handle.net/10013/epic.9ef04e0e-e0c2-4cbb-a94e-da5284ce31de |
genre |
Arctic Phytoplankton |
genre_facet |
Arctic Phytoplankton |
op_source |
EPIC3Geophysical Research Letters, Wiley, 47(14), pp. e2020GL087465, ISSN: 0094-8276 |
op_relation |
Wiedmann, I. , Ceballos-Romero, E. , Villa-Alfageme, M. , Renner, A. , Dybwad, C. , van der Jagt, H. , Svensen, C. , Assmy, P. , Wiktor, J. , Tatarek, A. , Rozanska-Pluta, M. and Iversen, M. orcid:0000-0002-5287-1110 (2020) Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation , Geophysical Research Letters, 47 (14), e2020GL087465 . doi:0.1029/2020GL087465 , hdl:10013/epic.9ef04e0e-e0c2-4cbb-a94e-da5284ce31de |
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1810293308253011968 |