The sea surface CO 2 fugacity and its relationship with environmental parameters in the subpolar North Atlantic 2005
International audience We present the first year-long subpolar transatlantic set of surface seawater CO 2 fugacity ( f CO 2 sw ) data. The data were obtained aboard the MV Nuka Arctica in 2005 and provide a quasi-continuous picture of the f CO 2 sw variability between Denmark and Greenland. Compleme...
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ftinsu:oai:HAL:hal-00297897v1 2023-11-12T04:18:03+01:00 The sea surface CO 2 fugacity and its relationship with environmental parameters in the subpolar North Atlantic 2005 Olsen, A. Brown, K. R. Chierici, M. Johannessen, T. Neill, C. Bjerknes Centre for Climate Research (BCCR) Department of Biological Sciences Bergen (BIO / UiB) University of Bergen (UiB)-University of Bergen (UiB) Geophysical Institute Bergen (GFI / BiU) University of Bergen (UiB) Marine Chemistry Department of Chemistry 2007-06-15 https://hal.science/hal-00297897 https://hal.science/hal-00297897/document https://hal.science/hal-00297897/file/bgd-4-1737-2007.pdf en eng HAL CCSD European Geosciences Union hal-00297897 https://hal.science/hal-00297897 https://hal.science/hal-00297897/document https://hal.science/hal-00297897/file/bgd-4-1737-2007.pdf info:eu-repo/semantics/OpenAccess ISSN: 1810-6277 EISSN: 1810-6285 Biogeosciences Discussions https://hal.science/hal-00297897 Biogeosciences Discussions, 2007, 4 (3), pp.1737-1777 [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2007 ftinsu 2023-10-25T16:28:21Z International audience We present the first year-long subpolar transatlantic set of surface seawater CO 2 fugacity ( f CO 2 sw ) data. The data were obtained aboard the MV Nuka Arctica in 2005 and provide a quasi-continuous picture of the f CO 2 sw variability between Denmark and Greenland. Complementary real-time high resolution data of surface chlorophyll a (chl a ) concentrations and mixed layer depth (MLD) estimates have been collocated with the f CO 2 sw data. Off the shelves the f CO 2 sw goes through a pronounced seasonal cycle. Surface waters are saturated to slightly supersaturated over a wide range of temperatures in winter. Through spring and summer f CO 2 sw decreases by approximately 60 ?atm due to biological carbon consumption which is not fully counteracted by the f CO 2 sw increase due to summer warming. The changes are synchronous with changes in chl a concentrations and MLD, and f CO 2 sw is correlated to both of these through exponential decay and growth curves, respectively. In particular, MLD appears to be able to predict open ocean subpolar f CO 2 sw to within 12 ?atm using a single equation for the whole year. The predictive capability of chl a is around 20% less, with root mean square values of 14.5 ?atm. As f CO 2 sw extrapolation parameters, both MLD and chl a outperform sea surface temperatures in the open subpolar North Atlantic. However, the situation on the shelves is much more heterogeneous and the f CO 2 sw ?parameter relationships are not as strong as they are off the shelves. Article in Journal/Newspaper Greenland North Atlantic Institut national des sciences de l'Univers: HAL-INSU Greenland |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Olsen, A. Brown, K. R. Chierici, M. Johannessen, T. Neill, C. The sea surface CO 2 fugacity and its relationship with environmental parameters in the subpolar North Atlantic 2005 |
topic_facet |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience We present the first year-long subpolar transatlantic set of surface seawater CO 2 fugacity ( f CO 2 sw ) data. The data were obtained aboard the MV Nuka Arctica in 2005 and provide a quasi-continuous picture of the f CO 2 sw variability between Denmark and Greenland. Complementary real-time high resolution data of surface chlorophyll a (chl a ) concentrations and mixed layer depth (MLD) estimates have been collocated with the f CO 2 sw data. Off the shelves the f CO 2 sw goes through a pronounced seasonal cycle. Surface waters are saturated to slightly supersaturated over a wide range of temperatures in winter. Through spring and summer f CO 2 sw decreases by approximately 60 ?atm due to biological carbon consumption which is not fully counteracted by the f CO 2 sw increase due to summer warming. The changes are synchronous with changes in chl a concentrations and MLD, and f CO 2 sw is correlated to both of these through exponential decay and growth curves, respectively. In particular, MLD appears to be able to predict open ocean subpolar f CO 2 sw to within 12 ?atm using a single equation for the whole year. The predictive capability of chl a is around 20% less, with root mean square values of 14.5 ?atm. As f CO 2 sw extrapolation parameters, both MLD and chl a outperform sea surface temperatures in the open subpolar North Atlantic. However, the situation on the shelves is much more heterogeneous and the f CO 2 sw ?parameter relationships are not as strong as they are off the shelves. |
author2 |
Bjerknes Centre for Climate Research (BCCR) Department of Biological Sciences Bergen (BIO / UiB) University of Bergen (UiB)-University of Bergen (UiB) Geophysical Institute Bergen (GFI / BiU) University of Bergen (UiB) Marine Chemistry Department of Chemistry |
format |
Article in Journal/Newspaper |
author |
Olsen, A. Brown, K. R. Chierici, M. Johannessen, T. Neill, C. |
author_facet |
Olsen, A. Brown, K. R. Chierici, M. Johannessen, T. Neill, C. |
author_sort |
Olsen, A. |
title |
The sea surface CO 2 fugacity and its relationship with environmental parameters in the subpolar North Atlantic 2005 |
title_short |
The sea surface CO 2 fugacity and its relationship with environmental parameters in the subpolar North Atlantic 2005 |
title_full |
The sea surface CO 2 fugacity and its relationship with environmental parameters in the subpolar North Atlantic 2005 |
title_fullStr |
The sea surface CO 2 fugacity and its relationship with environmental parameters in the subpolar North Atlantic 2005 |
title_full_unstemmed |
The sea surface CO 2 fugacity and its relationship with environmental parameters in the subpolar North Atlantic 2005 |
title_sort |
sea surface co 2 fugacity and its relationship with environmental parameters in the subpolar north atlantic 2005 |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00297897 https://hal.science/hal-00297897/document https://hal.science/hal-00297897/file/bgd-4-1737-2007.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
ISSN: 1810-6277 EISSN: 1810-6285 Biogeosciences Discussions https://hal.science/hal-00297897 Biogeosciences Discussions, 2007, 4 (3), pp.1737-1777 |
op_relation |
hal-00297897 https://hal.science/hal-00297897 https://hal.science/hal-00297897/document https://hal.science/hal-00297897/file/bgd-4-1737-2007.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782334774328688640 |