Air-Sea CO 2 fluxes in the Atlantic as measured during boreal spring and autumn
A total of fourteen hydrographic cruises from 2000 to 2008were conducted during the spring and autumn seasons between Spain and theSouthern Ocean under the framework of the Spanish research project FICARAM.The underway measurements were processed and analysed to describe themeridional air-sea CO 2 f...
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ftunivtasecite:oai:ecite.utas.edu.au:103047 2023-05-15T16:02:36+02:00 Air-Sea CO 2 fluxes in the Atlantic as measured during boreal spring and autumn Padin, XA Vazquez-Rodriguez, M Castano, M Velo, A Alonso-Perez, F Gago, J Gilcoto, M Alvarez, M Pardo, PC de la Paz, M Rios, AF Perez, FF 2010 application/pdf https://doi.org/10.5194/bg-7-1587-2010 http://ecite.utas.edu.au/103047 en eng Copernicus GmbH http://ecite.utas.edu.au/103047/1/1587 Padin.pdf http://dx.doi.org/10.5194/bg-7-1587-2010 Padin, XA and Vazquez-Rodriguez, M and Castano, M and Velo, A and Alonso-Perez, F and Gago, J and Gilcoto, M and Alvarez, M and Pardo, PC and de la Paz, M and Rios, AF and Perez, FF, Air-Sea CO 2 fluxes in the Atlantic as measured during boreal spring and autumn, Biogeosciences, 7, (5) pp. 1587-1606. ISSN 1726-4170 (2010) [Refereed Article] http://ecite.utas.edu.au/103047 Earth Sciences Physical Geography and Environmental Geoscience Surface Processes Refereed Article PeerReviewed 2010 ftunivtasecite https://doi.org/10.5194/bg-7-1587-2010 2019-12-13T22:04:36Z A total of fourteen hydrographic cruises from 2000 to 2008were conducted during the spring and autumn seasons between Spain and theSouthern Ocean under the framework of the Spanish research project FICARAM.The underway measurements were processed and analysed to describe themeridional air-sea CO 2 fluxes ( F CO 2 ) in the covered sector of theAtlantic Ocean. The data has been grouped into different biogeochemicaloceanographic provinces based on thermohaline characteristics. The spatialand temporal distributions of F CO 2 followed expected distributions andannual trends reproducing the recent climatological Δ f CO 2 estimations with a mean difference of −3 18 μatm (Takahashi etal., 2009). The reduction in the CO 2 saturation along the meridionalFICARAM cruises represented an increase of 0.02 0.14 mol m −2 yr −1 in the ocean uptake of atmospheric CO 2 . The subtropicalwaters in both Hemispheres acted as a sink of atmospheric CO 2 duringthe successive spring seasons and as a source in autumn. The coarsereduction of the ocean uptake of atmospheric CO 2 observed in the NorthAtlantic Ocean was linked to conditions of negative phase of the NorthAtlantic Oscillation that prevailed during the FICARAM period. Surfacewaters in the North Equatorial Counter Current revealed a significantlong-term decrease of sea surface salinity of −0.16 0.01 yr −1 coinciding with a declination of −3.5 0.9 μatm yr −1 in theairsea disequilibrium of CO 2 fugacity and a rise of oceanic CO 2 uptake of −0.09 0.03 mol m −2 yr −1 . The largest CO 2 source was located in the equatorial upwelling system. These tropical watersthat reached emissions of 0.7 0.5 and 1.0 0.7 mol m −2 y −1 in spring and autumn, respectively, showed an interannual warmingof 0.11 0.03 C yr −1 and a wind speed decrease of −0.58 0.14 m s −1 yr −1 in spring cruises which suggest the weakening ofupwelling events associated with warm El Nio Southern Oscillationepisodes. Contrary the surface waters of the Patagonian Sea behaved as anintense sink of CO 2 in March and November. The oceanic waters of theconvergence of Falkland and Brazil Currents showed the strongest CO 2 absorption with a rate of −5.4 3.6 mol m −2 yr −1 in November.The Southern Oceans sampled in the Drake Passage behave as an average uptakerate of −1.1 0.9 mol m −2 yr −1 while the distal shelf of theLivingston Island acted as a slight source of CO 2 to the atmosphere. Article in Journal/Newspaper Drake Passage eCite UTAS (University of Tasmania) Drake Passage Biogeosciences 7 5 1587 1606 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Surface Processes |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Surface Processes Padin, XA Vazquez-Rodriguez, M Castano, M Velo, A Alonso-Perez, F Gago, J Gilcoto, M Alvarez, M Pardo, PC de la Paz, M Rios, AF Perez, FF Air-Sea CO 2 fluxes in the Atlantic as measured during boreal spring and autumn |
topic_facet |
Earth Sciences Physical Geography and Environmental Geoscience Surface Processes |
description |
A total of fourteen hydrographic cruises from 2000 to 2008were conducted during the spring and autumn seasons between Spain and theSouthern Ocean under the framework of the Spanish research project FICARAM.The underway measurements were processed and analysed to describe themeridional air-sea CO 2 fluxes ( F CO 2 ) in the covered sector of theAtlantic Ocean. The data has been grouped into different biogeochemicaloceanographic provinces based on thermohaline characteristics. The spatialand temporal distributions of F CO 2 followed expected distributions andannual trends reproducing the recent climatological Δ f CO 2 estimations with a mean difference of −3 18 μatm (Takahashi etal., 2009). The reduction in the CO 2 saturation along the meridionalFICARAM cruises represented an increase of 0.02 0.14 mol m −2 yr −1 in the ocean uptake of atmospheric CO 2 . The subtropicalwaters in both Hemispheres acted as a sink of atmospheric CO 2 duringthe successive spring seasons and as a source in autumn. The coarsereduction of the ocean uptake of atmospheric CO 2 observed in the NorthAtlantic Ocean was linked to conditions of negative phase of the NorthAtlantic Oscillation that prevailed during the FICARAM period. Surfacewaters in the North Equatorial Counter Current revealed a significantlong-term decrease of sea surface salinity of −0.16 0.01 yr −1 coinciding with a declination of −3.5 0.9 μatm yr −1 in theairsea disequilibrium of CO 2 fugacity and a rise of oceanic CO 2 uptake of −0.09 0.03 mol m −2 yr −1 . The largest CO 2 source was located in the equatorial upwelling system. These tropical watersthat reached emissions of 0.7 0.5 and 1.0 0.7 mol m −2 y −1 in spring and autumn, respectively, showed an interannual warmingof 0.11 0.03 C yr −1 and a wind speed decrease of −0.58 0.14 m s −1 yr −1 in spring cruises which suggest the weakening ofupwelling events associated with warm El Nio Southern Oscillationepisodes. Contrary the surface waters of the Patagonian Sea behaved as anintense sink of CO 2 in March and November. The oceanic waters of theconvergence of Falkland and Brazil Currents showed the strongest CO 2 absorption with a rate of −5.4 3.6 mol m −2 yr −1 in November.The Southern Oceans sampled in the Drake Passage behave as an average uptakerate of −1.1 0.9 mol m −2 yr −1 while the distal shelf of theLivingston Island acted as a slight source of CO 2 to the atmosphere. |
format |
Article in Journal/Newspaper |
author |
Padin, XA Vazquez-Rodriguez, M Castano, M Velo, A Alonso-Perez, F Gago, J Gilcoto, M Alvarez, M Pardo, PC de la Paz, M Rios, AF Perez, FF |
author_facet |
Padin, XA Vazquez-Rodriguez, M Castano, M Velo, A Alonso-Perez, F Gago, J Gilcoto, M Alvarez, M Pardo, PC de la Paz, M Rios, AF Perez, FF |
author_sort |
Padin, XA |
title |
Air-Sea CO 2 fluxes in the Atlantic as measured during boreal spring and autumn |
title_short |
Air-Sea CO 2 fluxes in the Atlantic as measured during boreal spring and autumn |
title_full |
Air-Sea CO 2 fluxes in the Atlantic as measured during boreal spring and autumn |
title_fullStr |
Air-Sea CO 2 fluxes in the Atlantic as measured during boreal spring and autumn |
title_full_unstemmed |
Air-Sea CO 2 fluxes in the Atlantic as measured during boreal spring and autumn |
title_sort |
air-sea co 2 fluxes in the atlantic as measured during boreal spring and autumn |
publisher |
Copernicus GmbH |
publishDate |
2010 |
url |
https://doi.org/10.5194/bg-7-1587-2010 http://ecite.utas.edu.au/103047 |
geographic |
Drake Passage |
geographic_facet |
Drake Passage |
genre |
Drake Passage |
genre_facet |
Drake Passage |
op_relation |
http://ecite.utas.edu.au/103047/1/1587 Padin.pdf http://dx.doi.org/10.5194/bg-7-1587-2010 Padin, XA and Vazquez-Rodriguez, M and Castano, M and Velo, A and Alonso-Perez, F and Gago, J and Gilcoto, M and Alvarez, M and Pardo, PC and de la Paz, M and Rios, AF and Perez, FF, Air-Sea CO 2 fluxes in the Atlantic as measured during boreal spring and autumn, Biogeosciences, 7, (5) pp. 1587-1606. ISSN 1726-4170 (2010) [Refereed Article] http://ecite.utas.edu.au/103047 |
op_doi |
https://doi.org/10.5194/bg-7-1587-2010 |
container_title |
Biogeosciences |
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7 |
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5 |
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1587 |
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1606 |
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1766398257645223936 |