المستودع الأكاديمي جامعة المدينة

Transport and budgets of dissolved inorganic carbon in the subpolar and temperate North Atlantic.

أعرض تسجيلة المادة بشكل مبسط

dc.creator Álvarez, Marta
dc.creator Ríos, Aida F.
dc.creator Pérez, Fiz F.
dc.creator Bryden, Harry L.
dc.creator Rosón, Gabriel
dc.date 2008-04-11T10:04:06Z
dc.date 2008-04-11T10:04:06Z
dc.date 2003
dc.date.accessioned 2017-01-31T01:02:00Z
dc.date.available 2017-01-31T01:02:00Z
dc.identifier Global Biogeochemical Cycles 17: 1002 (2003)
dc.identifier 0886-6236
dc.identifier http://hdl.handle.net/10261/3543
dc.identifier 10.1029/2002GB001881
dc.identifier 1944-9224
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3543
dc.description Transports of Total Inorganic Carbon (TIC), Total Alkalinity (TA) and Anthropogenic Carbon (CANT) are calculated across a densely sampled World Ocean Circulation Experiment (WOCE) section at the southern boundary of the subpolar North Atlantic (WOCE A25, 4x cruise). The circulation pattern was approximated using an inverse model constrained with measured mass transports at specific sites, while conserving the mass and salt transports, and forcing the silicate flux to equal the river input north of the section. The mass and chemical fluxes are decomposed into their barotropic, baroclinic and horizontal components. The TA transport is negligible (transport ± maximum estimate of uncertainty, 135 ± 507 kmol s 1), while TIC is transported southwards ( 1015 ± 490 kmol s 1) and CANT northwards (116 ± 125 kmol s 1). Combining our results with those from Roso´n et al. [2002] across 24.5 N (WOCE A5) we examine the contemporary and preindustrial TIC budgets in the subpolar and temperate North Atlantic based on two different approximations for the budget definitions. Initially, river input, biological production of TIC, along with sedimentation of calcium carbonate are ignored. Then, extended contemporary and preindustrial TIC budgets are discussed including rough estimates of the former processes, mainly based on values from the literature. Our findings point to the North Atlantic Ocean north of 24.5 N as a strong sink for atmospheric CO2 both today (2932 ± 2057 kmol s 1) and preindustrially (2439 ± 1721 kmol s 1). Only 17% of the contemporary CO2 air-sea uptake corresponds to CANT, which is mainly taken up in the temperate North Atlantic (between the 4x and 24.5 N sections). North of 24.5 N the Atlantic Ocean stores CANT at a rate of 1123 ± 200 kmol s 1. This CANT is mainly advected into the area in the upper limb of the overturning circulation, while 44% is directly introduced by air-sea uptake.
dc.description Peer reviewed
dc.format 1923226 bytes
dc.format application/pdf
dc.language eng
dc.publisher American Geophysical Union
dc.relation http://dx.doi.org/10.1029/2002GB001881
dc.rights openAccess
dc.subject North Atlantic
dc.subject Transports and budgets of inorganic carbon
dc.subject Transport and storage of anthropogenic carbon
dc.subject Air sea CO2 fluxes
dc.title Transport and budgets of dissolved inorganic carbon in the subpolar and temperate North Atlantic.
dc.type Artículo


الملفات في هذه المادة

الملفات الحجم الصيغة عرض

لا توجد أي ملفات مرتبطة بهذه المادة.

هذه المادة تبدو في المجموعات التالية:

أعرض تسجيلة المادة بشكل مبسط