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| Titel |
The CO2 system in the Mediterranean Sea: a basin wide perspective |
| VerfasserIn |
M. Álvarez, H. Sanleón-Bartolomé, T. Tanhua, L. Mintrop  , A. Luchetta, C. Cantoni, K. Schroeder, G. Civitarese |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1812-0784
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| Digitales Dokument |
URL |
| Erschienen |
In: Ocean Science ; 10, no. 1 ; Nr. 10, no. 1 (2014-02-14), S.69-92 |
| Datensatznummer |
250116924
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| Publikation (Nr.) |
 copernicus.org/os-10-69-2014.pdf |
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| Zusammenfassung |
The Mediterranean Sea (MedSea) is considered a "laboratory basin" being an
ocean in miniature, suffering dramatic changes in its oceanographic and
biogeochemical conditions derived from natural and anthropogenic forces.
Moreover, the MedSea is prone to absorb and store anthropogenic carbon due
to the particular CO2 chemistry and the active overturning circulation.
Despite this, water column CO2 measurements covering the whole basin
are scarce. This work aims to be a base-line for future studies about the
CO2 system space-time variability in the MedSea combining historic and
modern CO2 cruises in the whole area. Here we provide an extensive
vertical and longitudinal description of the CO2 system variables
(total alkalinity – TA, dissolved inorganic carbon – DIC and pH) along an
East-West transect and across the Sardinia-Sicily passage in the MedSea from
two oceanographic cruises conducted in 2011 measuring CO2 variables in
a coordinated fashion, the RV Meteor M84/3 and the RV Urania EuroFleets 11,
respectively. In this sense, we provide full-depth and length CO2
distributions across the MedSea, and property-property plots showing in each
sub-basin post-Eastern Mediterranean Transient (EMT) situation with regard
to TA, DIC and pH.
The over-determined CO2 system in 2011 allowed performing the first
internal consistency analysis for the particularly warm, high salinity and
alkalinity MedSea waters. The CO2 constants by Mehrbach et al. (1973)
refitted by Dickson and Millero (1987) are recommended. The sensitivity of
the CO2 system to the atmospheric CO2 increase, DIC and/or TA
changes is evaluated by means of the Revelle and buffer factors. |
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