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Abstract:

The thermohaline structure across the tidal fronts of the continental shelf off Patagonia is analyzed using historical and recent summer hydrographic sections. The near-summer tidal front location is determined on the basis of the magnitude of vertical stratification of the water column as measured by the Simpson parameter. Sea surface and air CO2 partial pressures based on data from eleven transects collected in summer and fall from 2000 to 2004 are used to estimate CO2 fluxes over the shelf. The near-shore waters are a source of CO2 to the atmosphere while the midshelf region is a CO2 sink. The transition between source and sink regions closely follows the location of tidal fronts, suggesting a link between vertical stratification of the water column and the regional CO2 balance. The highest surface values of Chl a are associated with the strongest CO2 sinks. The colocation of lowest CO2 partial pressure (pCO2) and highest Chl a suggests that phytoplankton blooms on the stratified side of the fronts draw the ocean's CO2 to very low levels. The mean shelf sea-air difference in pCO2 (ΔpCO2) is -24 μatm and rises to -29 μatm if the shelf break front is included. Peaks in ΔpCO2 of -110 μatm, among the highest observed in the global ocean, are observed. The estimated summer mean CO2 flux over the shelf is -4.4 mmol m-2 d-1 and rises to -5.7 mmol m-2 d-1 when the shelf break area is taken into account. Thus, during the warm season the shelf off Patagonia is a significant atmospheric CO2 sink. Copyright 2005 by the American Geophysical Union.

Registro:

Documento: Artículo
Título:Vertical stratification and air-sea CO2 fluxes in the Patagonian shelf
Autor:Bianchi, A.A.; Bianucci, L.; Piola, A.R.; Pino, D.R.; Schloss, I.; Poisson, A.; Balestrini, C.F.
Filiación:Departamento Oceanografía, Servicio de Hidrografía Naval, Av. Montes de Oca 2124, 1212 Ciudad de Buenos Aires, Argentina
Departamento Ciencias de la Atmósfera y los Océanos, FCEN, Universidad de Buenos Aires, Pabellón 2, 1428 Ciudad de Buenos Aires, Argentina
Laboratoire de Biogéochimie et Chimie Marines, Université Pierre et Marie Curie, 4 place Jussieu, F-75005 Paris, France
Instituto Antártico Argentino, Cerrito 1248, 1010 Ciudad de Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
Palabras clave:air-sea interaction; carbon dioxide; stratification; surface flux; Atlantic Ocean; oceanic regions; Patagonian Shelf; World
Año:2005
Volumen:110
Número:7
Página de inicio:1
Página de fin:10
DOI: http://dx.doi.org/10.1029/2004JC002488
Título revista:Journal of Geophysical Research C: Oceans
Título revista abreviado:J. Geophys. Res. C Oceans
ISSN:01480227
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_01480227_v110_n7_p1_Bianchi.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01480227_v110_n7_p1_Bianchi

Referencias:

  • Acha, E.M., Mianzan, H.W., Guerrero, R.A., Favero, M., Bava, J., Marine fronts in the continental shelves of austral South America: Physical and ecological processes (2004) J. Mar. Syst., 44, pp. 83-105
  • Bakun, A., The California current, Benguela current, and southwestern Atlantic shelf ecosystems: A comparative approach to identifying factors regulating biomass yields (1993) Large Marine Ecosystems: Stress, Mitigation, and Sustainability, pp. 199-221. , edited by K, Sherman, L. M. Alexander, and B. D. Gold AAAS, Washington, D. C
  • Bakun, A., Parrish, R.H., Comparative studies of coastal pelagic fish reproductive habitats: The anchovy (Engraulis anchoita) of the southwestern Atlantic, ICES (1991) J. Mar. Sci., 48, pp. 343-361
  • Balech, E., Fitoplancton de Mar del Plata durante el período 1961-1962 (1964) Bol. Inst. Biol. Mar., 4, pp. 1-49
  • Balech, E., Nuevas contribuciones a los esquemas de circulación oceánica frente a la Argentina (1965) An. Acad. Bras. Cienc., 37, pp. 157-166
  • Bava, J., Gagliardini, D.A., Dogliotti, A.I., Lasta, C.A., Annual distribution and variability of remotely sensed sea surface temperature fronts in the Southwestern Atlantic Ocean (2002), paper presented at 29th International Symposium on Remote Sensing of the Environment, Int. Cent. for Remote Sens. of Environ., Buenos Aires, Argentina; Behrenfeld, M.J., Falkowski, P.G., A consumer's guide to phytoplankton Primary productivity models (1997) Limnol. Oceanogr., 42 (7), pp. 1479-1491
  • Bianchi, A.A., Massonneau, M., Olivera, R.M., Análisis estadístico de las características T-S del sector austral de la plataforma continental argentina (1982) Acta Oceanogr. Argent., 3 (1), pp. 93-118
  • Bisbal, G., The southeast South American shelf large marine ecosystem: Evolution and components (1995) Mar. Policy, 19, pp. 21-38
  • Broecker, W.S., Peng, T.-H., (1982) Tracers in the Sea, p. 690. , Lamont-Doherty Earth Obs., Palisades, New York
  • Carreto, J.I., Lasta, M.L., Negri, R.M., Benavides, H.R., Los fenómenos de marea roja y toxicidad de moluscos bivalvos en el Mar Argentino (1981) Contrib. 399, p. 55. , Inst. Nac. Invest. Desarollo Pesquero, Mar del Plata, Argentina
  • Carreto, J.I., Benavides, H.R., Negri, R.M., Glorioso, P.D., Toxic red tide in the Argentine Sea. Phytoplankton distribution and survival of the toxic dinoflagellate Gonyaulax excavata in a frontal area (1986) J. Plankton Res., 8, pp. 15-28
  • Carreto, J.I., Lutz, V.A., Carignan, M.O., Cucchi Coleoni, A.D., De, S.G., Marco Hydrography and chlorophyll-a in a transect from the coast to the shelf break in the Argentinian Sea (1995) Cont. Shelf Res., 14, pp. 315-336
  • Codispoti, L.A., Friedrich, G.E., Hood, D.W., Variability in the inorganic carbon system over the southeastern Bering Sea shelf during spring 1980 and spring-summer 1981 (1986) Cont. Shelf Res., 5, pp. 133-160
  • Copin-Montégut, C., A method for the continuous determination of the partial pressure of carbon dioxide in the upper ocean (1985) Mar. Chem., 17, pp. 13-21
  • Copin-Montégut, G., (1996) Chimie De L'Eau De Mer, p. 319. , Inst. Oceanogr. de Paris, Paris
  • Duarte, C.M., Agusti, S., The CO2 balance of unproductive aquatic ecosystems (1998) Science, 28, pp. 234-236
  • Frankignoulle, M., Borges, A.V., European continental shelf as a significant sink for atmospheric carbon dioxide (2001) Global Biogechem. Cycles, 15 (3), pp. 569-576
  • Glorioso, P.D., Temperature distribution related to shelf-sea fronts on the Patagonian Shelf (1987) Cont. Shelf Res., 7, pp. 27-34
  • Glorioso, P.D., Flather, R.A., The Patagonian Shelf tides (1997) Prog. Oceanogr., 40, pp. 263-283
  • Guerrero, R.A., Piola, A.R., Masas de agua en la plataforma continental, in El Mar Argentino y sus Recursos Pesqueros, Antecedentes Históricos de las Exploraciones en (1997) El Mar Y Las Características Ambientales, 1, pp. 107-118. , edited by E. E. Boschi Inst. Nac. Invest. Desarollo Pesquero, Mar del Plata, Argentina
  • Hales, B., Takahashi, T., Bandstra, L., Atmospheric CO2 uptake by a coastal upwelling system (2005) Global Biogeochem. Cycles, 19, pp. GB1009. , doi:10.1029/2004GB002295
  • Hart, T.J., Report on trawling survey of the Patagonian continental shelf (1946) Discovery Rep., 23, pp. 223-248
  • Hoskins, B.J., Bretherton, F.B., Atmospheric frontogenesis models: Mathematical formulation and solution (1972) J. Atmos. Sci., 29, pp. 11-37
  • Kantha, L.H., Tierney, C., Lopez, J.W., Desai, S.D., Parke, M.E., Drexler, L., Barotropic tides in the global ocean from a nonlinear tidal model assimilating altimetric tides: 2. Altimetric and geophysical implications (1995) J. Geophys. Res., 100, pp. 25,309-25,317
  • Krepper, C.M., Bianchi, A.A., Balance del Mar Epicontinental Argentino (1982) Acta Oceanogr. Argent., 3 (1), pp. 119-133
  • Lusquiños, A.J., Algunas características de las aguas de la plataforma continental argentina (1971) Datos Y Resultados De Las Campañas Pesquería, Pesquería X, , Ser. Inf. Tec., Publ. 10/X, edited by S. F. Villanueva, Proyecto de Desarrollo Pesquero, Mar del Plata, Argentina
  • Lusquiños, A.J., Algunas características de las aguas de la plataforma continental argentina (1971) Datos Y Resultados De Las Campañas Pesquería, Pesquería XI, , Ser. Inf. Tec., Publ. 10/XI, edited by S. F. Villanueva, Proyecto de Desarrollo Pesquero, Mar del Plata, Argentina
  • Lusquiños, A.J., Valdés, A.J., Aportes al conocimiento de las masas de agua del Atlántico Sudoccidental (1971), p. 48. , Rep. H659, Serv. de Hidrografia Nav., Buenos Aires, Argentina; Martos, P., Piccolo, M.C., Hidrography of the Argentine Continental Shelf between 38°S and 42°S (1988) Cont. Shelf Res., 8, pp. 1043-1056
  • Metzl, N., Poisson, A., Louanchi, F., Brunet, C., Schauer, B., Bres, B., Spatio-temporal distributions of air-sea fluxes of CO2 in the Indian and Antarctic oceans. A first step (1995) Tellus, 47, pp. 56-60. , Ser. B
  • Olson, D.B., Biophysical dynamics of ocean fronts (2002) The Sea, 12, pp. 187-218. , edited by A. R. Robinson John Wiley, Hoboken, N. J
  • Palma, E.D., Matano, R.P., Piola, A.R., Three dimensional barotropic response of the southwestern Atlantic shelf circulation to tidal and wind forcing (2004) J. Geophys. Res., 109, pp. C08014. , doi:10.1029/2004JC002315
  • Parker, G., Paterlini, M.C., Violante, R.A., (1997) El Fondo Marino, in El Mar Argentino Y Sus Recursos Pesqueros, Antecedentes Históricos De Las Exploraciones En El Mar Y Las Caracteristicas Ambientales, 1, pp. 65-87. , edited by E. E. Boschi Inst. Nac. Invest. Desarollo Pesquero, Mar del Plata, Argentina
  • Piola, A.R., Rivas, A.L., Corrientes en la Plataforma Continental (1997) El Mar Argentino Y Sus Recursos Pesqueros, Antecedentes Históricos De Las Exploraciones En El Mar Y Las Características Ambientales, 1, pp. 119-132. , edited by E. E. Boschi Inst. Nac. Invest. Desarollo Pesquero, Mar del Plata, Argentina
  • Piola, A.R., Scasso, L.M.L., Circulación en el Golfo San Matías (1988) Geoacta, 15 (1), pp. 33-51
  • Piola, A., Air-sea CO2 fluxes in the Southwest Atlantic ocean and the Patagonian shelf (2001), Mar del Plata, Argentina paper presented at IAPSO/IABO Joint Assembly, Int. Assoc. for the Phys. Sci. of the Oceans and Int. Assoc. for Biol. Oceanogr; Poisson, A., Metzl, N., Brunet, C., Schauer, B., Bres, B., Ruiz Pino, D., Louanchi, F., Variability of sources and sinks of CO2 in the Western Indian and Southern oceans during the year 1991 (1993) J. Geophys. Res., 22, pp. 759-778
  • Quintana, F., Yorio, P., Breeding biology of Royal and Cayenne terns at a mixed species colony in Patagonia (1997) Wilson Bull., 109, pp. 650-662
  • Rivas, A.L., Beier, E.J., Temperature and salinity fields in the north Patagonic gulfs (1990) Oceanol. Acta, 13, pp. 15-20
  • Rivas, A.L., Piola, A.R., Vertical stratification on the shelf off northern Patagonia (2002) Cont. Shelf Res., 22, pp. 1549-1558
  • Rivas, A.L., Ripa, P., Variación estacional de la estructura termohalina de Golfo Nuevo, Argentina (1989) Geofis. Int., 28 (1), pp. 3-24
  • Sabatini, M.E., Ramírez, F.C., Martos, P., Distribution pattern and population structure of Calanus australis Brodsky, 1959 over the southern Patagonian Shelf off Argentina in summer (2000) ICES J. Mar. Sci., 57, pp. 1856-1866
  • Sabatini, M.E., Reta, R., Matano, R., Circulation and zooplankton biomass distribution over the southern Patagonian shelf during late summer (2004) Cont. Shelf Res., 24, pp. 1359-1373
  • Sarma, V.V.S.S., Monthly in surface pCO2 and net air-sea CO2 flux in the Arabian Sea (2003) J. Geophys. Res., 108 (C8), p. 3255. , doi:10.1029/2001JC001062
  • Scasso, L.M.L., Piola, A.R., Intercambio neto de agua entre el mar y la atmósfera en el Golfo San Matías (1988) Geoacta, 15 (1), pp. 13-31
  • Simpson, J.H., The shelf-sea fronts: Irnplications of their existence and behaviour (1981) Philos. Trans. R. Soc. London Ser. A, 302, pp. 531-546
  • Simpson, J.H., Hunter, J.R., Fronts in the Irish Sea (1974) Nature, 250, pp. 404-406
  • Strickland, J.D.H., Parsons, T.R., A practical handbook of seaweater analysis (1972) Bull. 167, p. 311. , Fish. Res. Board of Can., Ottawa, Ont., Canada
  • Takahashi, T., Carbon dioxide in the Atmosphere and in Atlantic Ocean water (1961) J. Geophys. Res., 66 (2), pp. 477-494
  • Takahashi, T., Global sea-air CO2 flux based on climatological surface ocean pCO2 and seasonal biological and temperature effects (2002) Deep Sea Res., 49 (PART II), pp. 1601-1622
  • Thomas, H., Bozec, Y., Elkalay, K., de Baar, H.J.W., Enhanced open ocean storage of CO2 from shelf sea pumping (2004) Science, 304, pp. 1005-1008
  • Tsunogai, S., Watanabe, S., Sato, T., Is there a "continental shelf pump" for the absorption of atmospheric CO2? (1999) Tellus, 51, pp. 701-712. , Ser. B
  • Villanueva, S.F., (1968) Datos Y Resultados Preliminares De Las Campañas Pesquería, , (Ed.) Ser. Inf. Tec., Publ. 10/I-10/XIV, Proyecto de Desarrollo Pesquero, Mar del Plata, Argentina
  • Wanninkhof, R., Relationship between wind speed and gas exchange (1992) J. Geophys. Res., 97, pp. 7373-7382
  • Wanninkhof, R., McGillis, W.R., A cubic relationship between air-sea CO2 exchange and wind speed (1999) Geophys. Res. Lett., 26 (13), pp. 1889-1892
  • Watson, A.J., Orr, J.C., Carbon dioxide fluxes in the global ocean (2002) Ocean Biogeochemistry: A JGOFS Synthesis, pp. 123-141. , edited by M. Fasham, J. Field, T. Platt, and B. Zeitzschel Springer, Berlin, Germany
  • Williams, P.J., Oceans, carbon and climate change (1990), Scientific Committee on Oceanic Research (SCOR), Halifax, Canada

Citas:

---------- APA ----------
Bianchi, A.A., Bianucci, L., Piola, A.R., Pino, D.R., Schloss, I., Poisson, A. & Balestrini, C.F. (2005) . Vertical stratification and air-sea CO2 fluxes in the Patagonian shelf. Journal of Geophysical Research C: Oceans, 110(7), 1-10.
http://dx.doi.org/10.1029/2004JC002488
---------- CHICAGO ----------
Bianchi, A.A., Bianucci, L., Piola, A.R., Pino, D.R., Schloss, I., Poisson, A., et al. "Vertical stratification and air-sea CO2 fluxes in the Patagonian shelf" . Journal of Geophysical Research C: Oceans 110, no. 7 (2005) : 1-10.
http://dx.doi.org/10.1029/2004JC002488
---------- MLA ----------
Bianchi, A.A., Bianucci, L., Piola, A.R., Pino, D.R., Schloss, I., Poisson, A., et al. "Vertical stratification and air-sea CO2 fluxes in the Patagonian shelf" . Journal of Geophysical Research C: Oceans, vol. 110, no. 7, 2005, pp. 1-10.
http://dx.doi.org/10.1029/2004JC002488
---------- VANCOUVER ----------
Bianchi, A.A., Bianucci, L., Piola, A.R., Pino, D.R., Schloss, I., Poisson, A., et al. Vertical stratification and air-sea CO2 fluxes in the Patagonian shelf. J. Geophys. Res. C Oceans. 2005;110(7):1-10.
http://dx.doi.org/10.1029/2004JC002488