CO2 system in a Mediterranean frontal zone

14 páginas, 11 figuras, 2 tablas. [EN] Spatial and temporal variations of CO2 system parameters and O2 in the Catalan-Balearic Sea were studied during the PEP-86, FRONTS-86, PEP-87, and FRONTS-89, cruises. Complementary hydrographical data were also available. The zone of the Mediterranean Sea studi...

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Main Authors: Delgado, Olga, Estrada, Marta
Format: Article in Journal/Newspaper
Language:English
Published: Consejo Superior de Investigaciones Científicas (España) 1994
Subjects:
Online Access:http://hdl.handle.net/10261/28445
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spelling ftcsic:oai:digital.csic.es:10261/28445 2024-02-11T10:06:47+01:00 CO2 system in a Mediterranean frontal zone Sistema CO2-carbonatos en una zona frontal del Mediterráneo occidental Delgado, Olga Estrada, Marta 1994 15178186 bytes application/pdf http://hdl.handle.net/10261/28445 en eng Consejo Superior de Investigaciones Científicas (España) http://www.icm.csic.es/scimar/index.php/secId/6/IdArt/2693/ Scientia Marina 58(3): 237-250 (1994) 0214-8358 http://hdl.handle.net/10261/28445 1886-8134 open Alkalinity Carbon dioxide Calcite Oxygen Chlorophyll Productivity Fronts Mediterranean Alcalinidad Dióxido de carbono Calcita Oxígeno Clorofilas1 Producción primaria Frentes Mediterráneo artículo http://purl.org/coar/resource_type/c_6501 1994 ftcsic 2024-01-16T09:28:38Z 14 páginas, 11 figuras, 2 tablas. [EN] Spatial and temporal variations of CO2 system parameters and O2 in the Catalan-Balearic Sea were studied during the PEP-86, FRONTS-86, PEP-87, and FRONTS-89, cruises. Complementary hydrographical data were also available. The zone of the Mediterranean Sea studied was a source of CO2, and O2 to the atmosphere during all the periods sampled (summer and early autumn). There was a close correlation between p CO2 and O2 vertical distributions, especially below the thermocline. A slower atmospheric exchange rate of CO2 compared to O2 is suggested to contribute to the frequently shallower O2 maximum. Minimum pCO2 low values have been associated with more productive areas and located closer to the Catalan front. The CO2 and O2 peaks were 10 to 20 m above the deep chlorophyll a (Chla) maximum. The more stratified the water column, the deeper the p CO2 minimum, and the O2 and Chla maxima. Calcite and aragonite oversaturation was found for the entire 2,000 m water column. Calcite saturation (Wcalcite) increased in the productive zones owing to photosynthetic CO2 removal. Differences in salinity standardised alkalinity (Alk35) between Western Mediterranean and North Atlantic waters were of the same magnitude as the variability among Western Mediterranean Alk35 data. In principal component analysis (PCA), the more conservative parameters of the CO2 system, total alkalinity (Alkt) and total dissolved inorganic carbon (S CO2), were frequently correlated with the first factor (40% of total variance), while the most metabolism-sensitive parameter, pCO2, was frequently correlated with the second factor (20% of total variance). Possibly, other processes besides the biological activity and gas transfer, are influencing the pCO2 and O2 vertical distributions. [ES] Se ha estudiado la variabilidad espacial y temporal de los diferentes parámetros del sistema CO2-carbonatos y del O2 en una zona frontal del Mar catalano-balear durante las campañas oceanográficas PEP-86, FRONTS-86, PEP-87, y ... Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council)
institution Open Polar
collection Digital.CSIC (Spanish National Research Council)
op_collection_id ftcsic
language English
topic Alkalinity
Carbon dioxide
Calcite
Oxygen
Chlorophyll
Productivity
Fronts
Mediterranean
Alcalinidad
Dióxido de carbono
Calcita
Oxígeno
Clorofilas1
Producción primaria
Frentes
Mediterráneo
spellingShingle Alkalinity
Carbon dioxide
Calcite
Oxygen
Chlorophyll
Productivity
Fronts
Mediterranean
Alcalinidad
Dióxido de carbono
Calcita
Oxígeno
Clorofilas1
Producción primaria
Frentes
Mediterráneo
Delgado, Olga
Estrada, Marta
CO2 system in a Mediterranean frontal zone
topic_facet Alkalinity
Carbon dioxide
Calcite
Oxygen
Chlorophyll
Productivity
Fronts
Mediterranean
Alcalinidad
Dióxido de carbono
Calcita
Oxígeno
Clorofilas1
Producción primaria
Frentes
Mediterráneo
description 14 páginas, 11 figuras, 2 tablas. [EN] Spatial and temporal variations of CO2 system parameters and O2 in the Catalan-Balearic Sea were studied during the PEP-86, FRONTS-86, PEP-87, and FRONTS-89, cruises. Complementary hydrographical data were also available. The zone of the Mediterranean Sea studied was a source of CO2, and O2 to the atmosphere during all the periods sampled (summer and early autumn). There was a close correlation between p CO2 and O2 vertical distributions, especially below the thermocline. A slower atmospheric exchange rate of CO2 compared to O2 is suggested to contribute to the frequently shallower O2 maximum. Minimum pCO2 low values have been associated with more productive areas and located closer to the Catalan front. The CO2 and O2 peaks were 10 to 20 m above the deep chlorophyll a (Chla) maximum. The more stratified the water column, the deeper the p CO2 minimum, and the O2 and Chla maxima. Calcite and aragonite oversaturation was found for the entire 2,000 m water column. Calcite saturation (Wcalcite) increased in the productive zones owing to photosynthetic CO2 removal. Differences in salinity standardised alkalinity (Alk35) between Western Mediterranean and North Atlantic waters were of the same magnitude as the variability among Western Mediterranean Alk35 data. In principal component analysis (PCA), the more conservative parameters of the CO2 system, total alkalinity (Alkt) and total dissolved inorganic carbon (S CO2), were frequently correlated with the first factor (40% of total variance), while the most metabolism-sensitive parameter, pCO2, was frequently correlated with the second factor (20% of total variance). Possibly, other processes besides the biological activity and gas transfer, are influencing the pCO2 and O2 vertical distributions. [ES] Se ha estudiado la variabilidad espacial y temporal de los diferentes parámetros del sistema CO2-carbonatos y del O2 en una zona frontal del Mar catalano-balear durante las campañas oceanográficas PEP-86, FRONTS-86, PEP-87, y ...
format Article in Journal/Newspaper
author Delgado, Olga
Estrada, Marta
author_facet Delgado, Olga
Estrada, Marta
author_sort Delgado, Olga
title CO2 system in a Mediterranean frontal zone
title_short CO2 system in a Mediterranean frontal zone
title_full CO2 system in a Mediterranean frontal zone
title_fullStr CO2 system in a Mediterranean frontal zone
title_full_unstemmed CO2 system in a Mediterranean frontal zone
title_sort co2 system in a mediterranean frontal zone
publisher Consejo Superior de Investigaciones Científicas (España)
publishDate 1994
url http://hdl.handle.net/10261/28445
genre North Atlantic
genre_facet North Atlantic
op_relation http://www.icm.csic.es/scimar/index.php/secId/6/IdArt/2693/
Scientia Marina 58(3): 237-250 (1994)
0214-8358
http://hdl.handle.net/10261/28445
1886-8134
op_rights open
_version_ 1790604724828897280