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Abstract:

A possible deepening of the ocean mixed layer is investigated at two selected points of the Patagonian continental shelf where a significant positive wind speed trend is estimated. Using a 1-dimensional vertical numerical model on a long term simulation (1979-2011) it is found that the mixed layer thickness presents a significant and positive trend of about 10±1.5 cm/yr. The model is forced by atmospheric data from NCEP/NCAR 1 reanalysis and tidal constituents from TPXO 7.2 global model. Several numerical experiments are carried out in order to evaluate the impact of the different atmospheric variables considered in this study (wind components, air temperature, atmospheric pressure, specific humidity and cloud coverage). As a result it is found that a possible increase in the wind speed should be considered as a very significant factor for deepening the ocean mixed layer at the northern Patagonian continental shelf. © 2016 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:An estimation of the effect of a possible wind speed increase on the ocean mixed layer depth at the northern Patagonian continental shelf
Autor:Álvarez, E.; Zanella, J.; Pescio, A.; Dragani, W.
Filiación:International Center for Advanced Studies (ICAS), UNSAM, Campus Miguelete, 25 de Mayo y Francia, Buenos Aires, 1650, Argentina
Departamento de Física, FCEyN, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, Buenos Aires, C1428EGA, Argentina
Servicio de Hidrografía Naval, Ministerio de Defensa, Montes de Oca 2124, Buenos Aires, C1270ABV, Argentina
UMI IFAECI, CNRS, CONICET, UBA, Ciudad Universitaria, Pabellón II, 2do. Piso, Buenos Aires, C1428EGA, Argentina
Palabras clave:Patagonia; Shelf; Thermocline; Wind
Año:2016
Volumen:6
Página de inicio:87
Página de fin:95
DOI: http://dx.doi.org/10.1016/j.rsma.2016.03.004
Título revista:Regional Studies in Marine Science
Título revista abreviado:Reg. Stud. Mar. Sci.
ISSN:23524855
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_23524855_v6_n_p87_Alvarez

Referencias:

  • Barros, V., Castañeda, M.E., Doyle, M., Recent precipitation trends in Southern South America to the East of the Andes: An indication of a mode of climatic variability (2000) Southern Hemisphere Paleo and Neoclimates Concepts, Methods, Problems, pp. 187-206. , P. Smolka, W. Volkheimer, Springer Berlin
  • 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
  • Bleck, R., An oceanic general circulation model framed in hybrid isopycnic-Cartesian coordinates (2002) Ocean Model., 37, pp. 55-88
  • Bromwich, D.H., Fogt, R.L., Strong trends in the skill of the ERA-40 and NCEP-NCAR reanalyses in the high and middle latitudes of the Southern Hemisphere, 1958-2001 (2004) J. Clim., 17, pp. 4603-4619
  • Charo, M., Piola, A.R., Hydrographic data from the GEF patagonia cruises (2014) Earth Syst. Sci. Data, 6, pp. 265-271
  • Codignotto, J., Dragani, W.C., Martin, P.B., Simionato, C.G., Medina, R.A., Alonso, G., Wind-wave climate change and increasing erosion observed in the outer Rí o de la Plata, Argentina (2012) Cont. Shelf Res., 38, pp. 110-116
  • Denman, K.L., A time-dependent model of the upper ocean (1973) J. Phys. Oceanogr., 3, pp. 173-184
  • D'Onofrio, E., Fiore, M., Pousa, J.L., Changes in the regime of storm surges at Buenos Aires, Argentina (2008) J. Coast. Res., 24, pp. 260-265
  • Dragani, W.C., Martin, P.B., Alonso, G., Codignotto, J., Prario, B., Bacino, G., Wind wave climate change: Impacts on the littoral processes at the northern Buenos Aires coast, Argentina (2013) Clim. Change, 121, pp. 649-660
  • Dragani, W.C., Martin, P.B., Campos, M.I., Simionato, C., Are wind wave heights increasing in South-eastern South American continental shelf between 32°S and 40°S? (2010) Cont. Shelf Res., 30, pp. 481-490
  • Egbert, G., Bennett, A., Foreman, M., TOPEX/POSEIDON tides estimated using a global inverse model (1994) J. Geophys. Res., 99, pp. 24821-24852
  • Egbert, G., Erofeeva, S.Y., Efficient inverse modeling of barotropic ocean tides (2002) J. Atmos. Ocean. Technol., 19, pp. 183-204
  • Ekman, V.W., On the influence of the earths rotation on ocean currents (1905) Ark. Mat. Astron. Fys., 2 (11), pp. 1-53
  • Geisler, J.E., Kraus, E.B., The well-mixed Ekman boundary layer (1969) Deep-Sea Res., 16, pp. 73-84
  • Gregg, W.W., Conkright, M.E., Decadal changes in global ocean chlorophyll (2002) Geophys. Res. Lett., 29, pp. 1730-1734
  • Guerrero, R.A., Piola, A.R., Masas de agua en la plataforma continental (1997) El Mar Argentino y Sus Recursos Pesqueros, Antecedentes Históricos de Las Exploraciones en El Mar y Las Caracterí Sticas Ambientales, 1, pp. 107-118. , Boschi E.E. (ed), Inst. Nac. Invest. Desarrollo Pesquero, Mar del Plata, Argentina
  • Halliwell, G.R., Bleck, R., Chassignet, E.P., Smith, L.T., Mixed layer model validation in Atlantic Ocean simulations using the hybrid coordinate ocean model, HYCOM (2000) Evol. Smooth, 80, p. OS304
  • Hart, T.J., Report on trawling survey of the Patagonian continental shelf (1946) Discov. Rep., 23, pp. 223-408
  • Huang, R.X., Wang, W., Liu, L.L., Decadal variability of wind-energy input to the world ocean (2006) Deep Sea Res. Part II, 53, pp. 31-41
  • Jones, J.M., Fogt, R.L., Gareth, M.W., Marshall, J., Jones, P.D., Visbeck, M., Historical SAM variability. Part I: Century-length seasonal reconstructions (2009) J. Clim., 22, pp. 5319-5345
  • Kalnay, E., Kanamitsu, M., Kistler, R., Collins, W., Deaven, D., Gandin, L., Iredell, M., Joseph, D., The NCEP/NCAR 40-Year reanalysis project (1996) Bull. Am. Meteorol. Soc., 77, pp. 437-471
  • 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. 25309-25317
  • Kraus, E.B., Turner, J.S., A one-dimensional model of the seasonal thermocline, part II (1967) Tellus, 19, pp. 98-105
  • 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., Valdés, A.J., Aportes al conocimiento de las masas de agua del Atlántico Sudoccidental (1971) Rep. H659, Serv. de Hidrografía Nav., p. 48. , Buenos Aires, Argentina
  • McInnes, K.L., Erwin, T.A., Bathols, J.M., Global Climate Model projected changes in 10 m wind speed and direction due to anthropogenic climate change (2011) Atmos. Sci. Lett., 12, pp. 325-333
  • Miropol'skiy, Y.A., Nonstationary model of the wind-convection mixing layer in the ocean (1970) Izv. Atmos. Ocean. Phys., 6 (12), pp. 1284-1294
  • Niiler, P.P., Deepening of the wind-mixed layer (1975) J. Marine Res., 33 (3), pp. 405-422
  • Parker, G., Paterlini, M.C., Violante, R., El fondo marino (1997) El Mar Argentino y Sus Recursos Pesqueros, Antecedentes Históricos de Las Exploraciones en El Mar y Las Caracterí Sticas Ambientales, 1, pp. 65-87. , Boschi EE (ed) Inst. Nac. Invest. Desarrollo Pesquero, Mar del Plata, Argentina
  • Pescio, A.E., Martín, P., Dragani, W., Wind speed trends over the Southeastern continental shelf of South America, between 33° and 50°S (2015) Int. J. Climatol., 36 (1), pp. 501-507
  • 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 Caracterí Sticas Ambientales, 1, pp. 119-132. , Boschi, E.E. (ed), Inst. Nac. Invest. Desarrollo Pesquero, Mar del Plata, Argentina
  • Rivas, A.L., Heat balance and annual variation of mean temperature in the North Patagonian gulfs (1990) Oceanol. Acta, 13, pp. 265-272
  • Rivas, A.L., Spatial variation of the annual cycle of temperature in the Patagonian shelf between 40 and 50° of south latitude (1994) Cont. Shelf Res., 14, pp. 1539-1554
  • Rivas, A.L., Piola, A.R., Vertical stratification of shelf off northern Patagonia (2002) Cont. Shelf Res., 22, pp. 1549-1558
  • Sallée, J.B., Speer, K.G., Rintoul, S.R., Zonally asymmetric response of the Southern Ocean mixed-layer depth to the Southern Annular Mode (2010) Nat. Geosci., 3, pp. 273-279
  • Sharples, J., Investigating the seasonal vertical structure of phytoplankton in shelf seas (1999) Mar. Model., 1, pp. 3-38
  • Sharples, J., Ross, O.N., Scott, B.E., Greenstreet, S.P.R., Fraser, H., Inter-annual variability in the timing of stratification and the spring bloom in the North-western North Sea (2006) Cont. Shelf Res., 26, pp. 733-751
  • Simionato, C., Dragani, W.C., Nuñez, M.N., Engel, M., A set of 3-D nested models for tidal propagation from the Argentinean Continental Shelf to Río de la Plata Estuary-Part I. M2 (2004) J. Coast. Res., 20, pp. 893-912
  • Simmonds, I., Keay, K., Mean Southern Hemisphere extratropical cyclone behavior in the 40-year NCEP-NCAR reanalysis (2000) J. Clim., 13, pp. 873-885

Citas:

---------- APA ----------
Álvarez, E., Zanella, J., Pescio, A. & Dragani, W. (2016) . An estimation of the effect of a possible wind speed increase on the ocean mixed layer depth at the northern Patagonian continental shelf. Regional Studies in Marine Science, 6, 87-95.
http://dx.doi.org/10.1016/j.rsma.2016.03.004
---------- CHICAGO ----------
Álvarez, E., Zanella, J., Pescio, A., Dragani, W. "An estimation of the effect of a possible wind speed increase on the ocean mixed layer depth at the northern Patagonian continental shelf" . Regional Studies in Marine Science 6 (2016) : 87-95.
http://dx.doi.org/10.1016/j.rsma.2016.03.004
---------- MLA ----------
Álvarez, E., Zanella, J., Pescio, A., Dragani, W. "An estimation of the effect of a possible wind speed increase on the ocean mixed layer depth at the northern Patagonian continental shelf" . Regional Studies in Marine Science, vol. 6, 2016, pp. 87-95.
http://dx.doi.org/10.1016/j.rsma.2016.03.004
---------- VANCOUVER ----------
Álvarez, E., Zanella, J., Pescio, A., Dragani, W. An estimation of the effect of a possible wind speed increase on the ocean mixed layer depth at the northern Patagonian continental shelf. Reg. Stud. Mar. Sci. 2016;6:87-95.
http://dx.doi.org/10.1016/j.rsma.2016.03.004