Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover
Arctic sea ice cover has been steeply declining since the onset of satellite observations in the late 1970s. However, the available annually resolved sea ice data prior to this time are limited. Here, we evaluated the suitability of annual trace element (Mg/Ca) ratios and growth increments from the...
Published in: | Paleoceanography and Paleoclimatology |
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Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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AGU (American Geophysical Union)
2022
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Online Access: | https://oceanrep.geomar.de/id/eprint/54604/ https://oceanrep.geomar.de/id/eprint/54604/1/Leclerc%20et%20al.%202021_accepted.pdf https://oceanrep.geomar.de/id/eprint/54604/7/2021pa004286-sup-0001-supporting https://oceanrep.geomar.de/id/eprint/54604/8/Paleoceanog%20and%20Paleoclimatol%20-%202021%20-%20Leclerc%20-%20Suitability%20of%20the%20Coralline%20Alga%20Clathromorphum%20compactum%20as%20an%20Arctic.pdf https://doi.org/10.1029/2021PA004286 |
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ftoceanrep:oai:oceanrep.geomar.de:54604 2024-02-11T09:59:44+01:00 Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover Leclerc, Natasha Halfar, Jochen Hetzinger, Steffen Chan, Phoebe P. T. W. Adey, Walter Tsay, Alexandra Brossier, Eric Kronz, Andreas 2022-01 text other https://oceanrep.geomar.de/id/eprint/54604/ https://oceanrep.geomar.de/id/eprint/54604/1/Leclerc%20et%20al.%202021_accepted.pdf https://oceanrep.geomar.de/id/eprint/54604/7/2021pa004286-sup-0001-supporting https://oceanrep.geomar.de/id/eprint/54604/8/Paleoceanog%20and%20Paleoclimatol%20-%202021%20-%20Leclerc%20-%20Suitability%20of%20the%20Coralline%20Alga%20Clathromorphum%20compactum%20as%20an%20Arctic.pdf https://doi.org/10.1029/2021PA004286 en eng AGU (American Geophysical Union) Wiley https://oceanrep.geomar.de/id/eprint/54604/1/Leclerc%20et%20al.%202021_accepted.pdf https://oceanrep.geomar.de/id/eprint/54604/7/2021pa004286-sup-0001-supporting https://oceanrep.geomar.de/id/eprint/54604/8/Paleoceanog%20and%20Paleoclimatol%20-%202021%20-%20Leclerc%20-%20Suitability%20of%20the%20Coralline%20Alga%20Clathromorphum%20compactum%20as%20an%20Arctic.pdf Leclerc, N., Halfar, J., Hetzinger, S. , Chan, P. P. T. W., Adey, W., Tsay, A., Brossier, E. and Kronz, A. (2022) Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover . Open Access Paleoceanography and Paleoclimatology, 37 (1). Art.Nr. e2021PA004286. DOI 10.1029/2021PA004286 <https://doi.org/10.1029/2021PA004286>. doi:10.1029/2021PA004286 info:eu-repo/semantics/openAccess Article PeerReviewed 2022 ftoceanrep https://doi.org/10.1029/2021PA004286 2024-01-15T00:24:34Z Arctic sea ice cover has been steeply declining since the onset of satellite observations in the late 1970s. However, the available annually resolved sea ice data prior to this time are limited. Here, we evaluated the suitability of annual trace element (Mg/Ca) ratios and growth increments from the long-lived annual increment-forming benthic coralline red alga, Clathromorphum compactum, as high-resolution sea ice cover archive. It has previously been shown that growth of C. compactum is strongly light controlled and therefore greatly limited during polar night and underneath sea ice cover. We compare algal data from 11 sites collected throughout the Canadian Arctic, Greenland and Svalbard, with satellite sea ice data. Our results suggested that algal growth anomalies most often produced better correlations to sea ice concentration than Mg/Ca ratios or when averaging growth and Mg/Ca anomalies. High Arctic regions with persistently higher sea ice concentrations and shorter ice-free seasons showed strongest correlations between algal growth anomalies and satellite sea ice concentration over the study period (1979-2015). At sites where ice breakup took place prior to the return of sufficient solar irradiance, algal growth was most strongly tied to a combination of solar irradiance and other factors such as temperature, suspended sediments, phytoplankton blooms and cloud cover. These data are the only annually resolved in situ marine proxy data known to date and are of utmost importance to gain a better understanding of the sea ice system and to project future sea ice conditions. Article in Journal/Newspaper Arctic Arctic Greenland Phytoplankton polar night Sea ice Svalbard OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Svalbard Greenland Paleoceanography and Paleoclimatology 37 1 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Arctic sea ice cover has been steeply declining since the onset of satellite observations in the late 1970s. However, the available annually resolved sea ice data prior to this time are limited. Here, we evaluated the suitability of annual trace element (Mg/Ca) ratios and growth increments from the long-lived annual increment-forming benthic coralline red alga, Clathromorphum compactum, as high-resolution sea ice cover archive. It has previously been shown that growth of C. compactum is strongly light controlled and therefore greatly limited during polar night and underneath sea ice cover. We compare algal data from 11 sites collected throughout the Canadian Arctic, Greenland and Svalbard, with satellite sea ice data. Our results suggested that algal growth anomalies most often produced better correlations to sea ice concentration than Mg/Ca ratios or when averaging growth and Mg/Ca anomalies. High Arctic regions with persistently higher sea ice concentrations and shorter ice-free seasons showed strongest correlations between algal growth anomalies and satellite sea ice concentration over the study period (1979-2015). At sites where ice breakup took place prior to the return of sufficient solar irradiance, algal growth was most strongly tied to a combination of solar irradiance and other factors such as temperature, suspended sediments, phytoplankton blooms and cloud cover. These data are the only annually resolved in situ marine proxy data known to date and are of utmost importance to gain a better understanding of the sea ice system and to project future sea ice conditions. |
format |
Article in Journal/Newspaper |
author |
Leclerc, Natasha Halfar, Jochen Hetzinger, Steffen Chan, Phoebe P. T. W. Adey, Walter Tsay, Alexandra Brossier, Eric Kronz, Andreas |
spellingShingle |
Leclerc, Natasha Halfar, Jochen Hetzinger, Steffen Chan, Phoebe P. T. W. Adey, Walter Tsay, Alexandra Brossier, Eric Kronz, Andreas Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover |
author_facet |
Leclerc, Natasha Halfar, Jochen Hetzinger, Steffen Chan, Phoebe P. T. W. Adey, Walter Tsay, Alexandra Brossier, Eric Kronz, Andreas |
author_sort |
Leclerc, Natasha |
title |
Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover |
title_short |
Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover |
title_full |
Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover |
title_fullStr |
Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover |
title_full_unstemmed |
Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover |
title_sort |
suitability of the coralline alga clathromorphum compactum as an arctic archive for past sea ice cover |
publisher |
AGU (American Geophysical Union) |
publishDate |
2022 |
url |
https://oceanrep.geomar.de/id/eprint/54604/ https://oceanrep.geomar.de/id/eprint/54604/1/Leclerc%20et%20al.%202021_accepted.pdf https://oceanrep.geomar.de/id/eprint/54604/7/2021pa004286-sup-0001-supporting https://oceanrep.geomar.de/id/eprint/54604/8/Paleoceanog%20and%20Paleoclimatol%20-%202021%20-%20Leclerc%20-%20Suitability%20of%20the%20Coralline%20Alga%20Clathromorphum%20compactum%20as%20an%20Arctic.pdf https://doi.org/10.1029/2021PA004286 |
geographic |
Arctic Svalbard Greenland |
geographic_facet |
Arctic Svalbard Greenland |
genre |
Arctic Arctic Greenland Phytoplankton polar night Sea ice Svalbard |
genre_facet |
Arctic Arctic Greenland Phytoplankton polar night Sea ice Svalbard |
op_relation |
https://oceanrep.geomar.de/id/eprint/54604/1/Leclerc%20et%20al.%202021_accepted.pdf https://oceanrep.geomar.de/id/eprint/54604/7/2021pa004286-sup-0001-supporting https://oceanrep.geomar.de/id/eprint/54604/8/Paleoceanog%20and%20Paleoclimatol%20-%202021%20-%20Leclerc%20-%20Suitability%20of%20the%20Coralline%20Alga%20Clathromorphum%20compactum%20as%20an%20Arctic.pdf Leclerc, N., Halfar, J., Hetzinger, S. , Chan, P. P. T. W., Adey, W., Tsay, A., Brossier, E. and Kronz, A. (2022) Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover . Open Access Paleoceanography and Paleoclimatology, 37 (1). Art.Nr. e2021PA004286. DOI 10.1029/2021PA004286 <https://doi.org/10.1029/2021PA004286>. doi:10.1029/2021PA004286 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2021PA004286 |
container_title |
Paleoceanography and Paleoclimatology |
container_volume |
37 |
container_issue |
1 |
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1790595503033942016 |