Partial pressure and air-sea flux of CO 2 in the Northeast Atlantic during September 1995
Previous work has shown that during early summer, the partial pressure of CO 2 (pCO 2 ) in surface waters north of about 45°N in the Atlantic exhibits widespread undersaturation. In many areas. this follows after a "spring bloom" of phytoplankton, at which time, nutrient concentrations and...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Language: | English |
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2001
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ftvliz:oai:oma.vliz.be:210793 2023-05-15T16:52:07+02:00 Partial pressure and air-sea flux of CO 2 in the Northeast Atlantic during September 1995 Keir, R.S. Rehder, G. Frankignoulle, M. 2001 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210793 en eng info:eu-repo/semantics/altIdentifier/wos/000171000700008 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/S0967-0645(01)00036-4 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210793 info:eu-repo/semantics/restrictedAccess %3Ci%3EDeep-Sea+Res.,+Part+II,+Top.+Stud.+Oceanogr.+48%2814-15%29%3C%2Fi%3E%3A+3179-3189.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2FS0967-0645%2801%2900036-4%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2FS0967-0645%2801%2900036-4%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2001 ftvliz https://doi.org/10.1016/S0967-0645(01)00036-4 2022-05-01T09:37:27Z Previous work has shown that during early summer, the partial pressure of CO 2 (pCO 2 ) in surface waters north of about 45°N in the Atlantic exhibits widespread undersaturation. In many areas. this follows after a "spring bloom" of phytoplankton, at which time, nutrient concentrations and pCO 2 decrease sharply from their winter surface values. As part of OMEX I, the late summer distribution of surface water pCO 2 was surveyed in the northeastern Atlantic on cruises of R/V Poseidon and R/V Belgica in 1995. The pattern of the surface distribution of the sea-air pCO 2 difference (Delta pCO 2 ) measured on these ship surveys was generally in accord with that observed in this area in early to mid-summer of 1981. The greatest CO 2 undersaturation (-95 µatm) during our surveys was observed near the west coast of Iceland, with Delta pCO 2 increasing to about -60 µatm away from the coast. In shelf waters south of Ireland, the pCO 2 was relatively higher than in surface waters of the open ocean adjacent to the Celtic Shelf margin, but the Celtic Shelf waters were still undersaturated relative to the atmospheric CO 2 concentration. Because of the variation of wind speed, the synoptic distribution of air-sea CO 2 flux, derived from the transfer velocity and Delta pCO 2 , does not resemble the distribution of Delta pCO 2 itself. The sharp increase in wind speed at about 53°N, 20°W during the R/V Poseidon survey produces an order of magnitude rise in the estimated air-sea flux of CO 2 , to a level of about 10-14 mol m -2 a -1 . The overall synoptic picture appears to be one of moving centers of higher air-sea fluxes that occur where storms pass over regions of surface water pCO 2 undersaturation. Article in Journal/Newspaper Iceland Northeast Atlantic Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Celtic Shelf ENVELOPE(-8.000,-8.000,50.000,50.000) Deep Sea Research Part II: Topical Studies in Oceanography 48 14-15 3179 3189 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
description |
Previous work has shown that during early summer, the partial pressure of CO 2 (pCO 2 ) in surface waters north of about 45°N in the Atlantic exhibits widespread undersaturation. In many areas. this follows after a "spring bloom" of phytoplankton, at which time, nutrient concentrations and pCO 2 decrease sharply from their winter surface values. As part of OMEX I, the late summer distribution of surface water pCO 2 was surveyed in the northeastern Atlantic on cruises of R/V Poseidon and R/V Belgica in 1995. The pattern of the surface distribution of the sea-air pCO 2 difference (Delta pCO 2 ) measured on these ship surveys was generally in accord with that observed in this area in early to mid-summer of 1981. The greatest CO 2 undersaturation (-95 µatm) during our surveys was observed near the west coast of Iceland, with Delta pCO 2 increasing to about -60 µatm away from the coast. In shelf waters south of Ireland, the pCO 2 was relatively higher than in surface waters of the open ocean adjacent to the Celtic Shelf margin, but the Celtic Shelf waters were still undersaturated relative to the atmospheric CO 2 concentration. Because of the variation of wind speed, the synoptic distribution of air-sea CO 2 flux, derived from the transfer velocity and Delta pCO 2 , does not resemble the distribution of Delta pCO 2 itself. The sharp increase in wind speed at about 53°N, 20°W during the R/V Poseidon survey produces an order of magnitude rise in the estimated air-sea flux of CO 2 , to a level of about 10-14 mol m -2 a -1 . The overall synoptic picture appears to be one of moving centers of higher air-sea fluxes that occur where storms pass over regions of surface water pCO 2 undersaturation. |
format |
Article in Journal/Newspaper |
author |
Keir, R.S. Rehder, G. Frankignoulle, M. |
spellingShingle |
Keir, R.S. Rehder, G. Frankignoulle, M. Partial pressure and air-sea flux of CO 2 in the Northeast Atlantic during September 1995 |
author_facet |
Keir, R.S. Rehder, G. Frankignoulle, M. |
author_sort |
Keir, R.S. |
title |
Partial pressure and air-sea flux of CO 2 in the Northeast Atlantic during September 1995 |
title_short |
Partial pressure and air-sea flux of CO 2 in the Northeast Atlantic during September 1995 |
title_full |
Partial pressure and air-sea flux of CO 2 in the Northeast Atlantic during September 1995 |
title_fullStr |
Partial pressure and air-sea flux of CO 2 in the Northeast Atlantic during September 1995 |
title_full_unstemmed |
Partial pressure and air-sea flux of CO 2 in the Northeast Atlantic during September 1995 |
title_sort |
partial pressure and air-sea flux of co 2 in the northeast atlantic during september 1995 |
publishDate |
2001 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210793 |
long_lat |
ENVELOPE(-8.000,-8.000,50.000,50.000) |
geographic |
Celtic Shelf |
geographic_facet |
Celtic Shelf |
genre |
Iceland Northeast Atlantic |
genre_facet |
Iceland Northeast Atlantic |
op_source |
%3Ci%3EDeep-Sea+Res.,+Part+II,+Top.+Stud.+Oceanogr.+48%2814-15%29%3C%2Fi%3E%3A+3179-3189.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2FS0967-0645%2801%2900036-4%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2FS0967-0645%2801%2900036-4%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000171000700008 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/S0967-0645(01)00036-4 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210793 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/S0967-0645(01)00036-4 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
48 |
container_issue |
14-15 |
container_start_page |
3179 |
op_container_end_page |
3189 |
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1766042243766943744 |