Sea-surface CO 2 fugacity in the subpolar North Atlantic
International audience We present the first year-long subpolar trans-Atlantic 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. Complem...
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ftinsu:oai:HAL:hal-00297683v1 2023-11-12T04:17:58+01:00 Sea-surface CO 2 fugacity in the subpolar North Atlantic 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 2008-04-10 https://hal.science/hal-00297683 https://hal.science/hal-00297683/document https://hal.science/hal-00297683/file/bg-5-535-2008.pdf en eng HAL CCSD European Geosciences Union hal-00297683 https://hal.science/hal-00297683 https://hal.science/hal-00297683/document https://hal.science/hal-00297683/file/bg-5-535-2008.pdf info:eu-repo/semantics/OpenAccess ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.science/hal-00297683 Biogeosciences, 2008, 5 (2), pp.535-547 [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 2008 ftinsu 2023-10-25T16:28:31Z International audience We present the first year-long subpolar trans-Atlantic 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-shelf f CO 2 sw data exhibit a pronounced seasonal cycle. In winter, surface waters are saturated to slightly supersaturated over a wide range of temperatures. 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, both of which are exponentially correlated with f CO 2 sw in off-shelf regions. 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. Sea-surface CO 2 fugacity in the subpolar North Atlantic |
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 trans-Atlantic 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-shelf f CO 2 sw data exhibit a pronounced seasonal cycle. In winter, surface waters are saturated to slightly supersaturated over a wide range of temperatures. 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, both of which are exponentially correlated with f CO 2 sw in off-shelf regions. |
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 |
Sea-surface CO 2 fugacity in the subpolar North Atlantic |
title_short |
Sea-surface CO 2 fugacity in the subpolar North Atlantic |
title_full |
Sea-surface CO 2 fugacity in the subpolar North Atlantic |
title_fullStr |
Sea-surface CO 2 fugacity in the subpolar North Atlantic |
title_full_unstemmed |
Sea-surface CO 2 fugacity in the subpolar North Atlantic |
title_sort |
sea-surface co 2 fugacity in the subpolar north atlantic |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/hal-00297683 https://hal.science/hal-00297683/document https://hal.science/hal-00297683/file/bg-5-535-2008.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.science/hal-00297683 Biogeosciences, 2008, 5 (2), pp.535-547 |
op_relation |
hal-00297683 https://hal.science/hal-00297683 https://hal.science/hal-00297683/document https://hal.science/hal-00297683/file/bg-5-535-2008.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782334707827998720 |