P. Aceituno, On the functioning of the Southern Oscillation in the South American sector, Part II: Upper-air circulation, J. Clim, vol.21, pp.341-355, 1989.

R. Adler, The Version-2 Global Precipitation Climatology Project (GPCP) monthly precipitation analysis (1979 -present), J. Hydrometeor, vol.4, pp.1147-1167, 2003.

R. J. Allan and R. D. D'arrigo, Persistent'' ENSO sequences: How unusual was the 1990 -1995 El Nino?, Holocene, vol.9, pp.101-118, 1999.

P. G. Appleby, N. Richardson, and P. J. Nolan, 241 Am dating of lake sediments, Hydrobiologia, vol.214, pp.35-42, 1991.

A. J. Aristarain and R. J. Delmas, Firn-core study from the southern Patagonia ice cap, South America, J. Glaciol, vol.39, pp.249-254, 1993.

F. Arnaud, O. Magand, E. Chapron, S. Bertrand, X. Boes et al., Radionuclide dating ( 210 Pb, 137 Cs, 241 Am) of recent lake sediments in a highly active geodynamic setting (Lakes Puyhue and Icalma-Chilean Lake District), Sci. Total Environ, vol.366, pp.837-850, 2006.

N. Blindow and F. Thyssen, Ice thickness and inner structure of the Vernagtferner (Oetztal Alps): Results of electromagnetic reflection measurements, Zeitschrift Gletscherkunde Glazialgeologie, vol.22, pp.43-60, 1986.

C. Bull, Snow accumulation in Antarctica, Publ. Am. Assoc. Adv. Sci, pp.367-421, 1971.

J. Carrasco, G. Casassa, and A. Rivera, Meteorological and climatological aspects of the Southern Patagonia ice cap, The Patagonian Icefields: A Unique Natural Laboratory for Environmental and Climate Change Studies, pp.29-41, 2002.

G. Casassa and A. Rivera, Digital radio-echo sounding at Tyndall Glacier, Patagonia, Anales Instituto Patagonia, Serie Cienc. Nat, vol.26, pp.129-135, 1998.

A. D. Clarke and V. N. Kapustin, A Pacific Aerosol Survey. Part I: A decade of data on particle production, transport, evolution and mixing in the troposphere, J. Atmos. Sci, vol.59, pp.363-382, 2002.

W. Dansgaard, Stables isotopes in precipitation, Tellus, pp.436-447, 1964.

G. O. Da-rocha, A. Franco, A. G. Allen, and A. A. Cardoso, Source of atmospheric acidity in an agricultural-industrial region of São Paulo State, Brazil, J. Geophys. Res, vol.108, issue.D7, p.4207, 2003.

M. De-angelis and M. Legrand, Origins and variations of light carboxylic acids in polar precipitation, J. Geophys. Res, vol.100, issue.D1, pp.1445-1462, 1995.

M. De-angelis, J. P. Steffensen, M. Legrand, H. B. Clausen, and C. U. Hammer, Primary aerosol (sea salt and soil dust) deposited in Greenland ice during the last climatic cycle: Comparison with east Antarctic records, J. Geophys. Res, vol.102, issue.C12, pp.681-707, 1997.

M. De-angelis, J. C. Simões, H. Bonnaveira, D. Taupin, and R. Delmas, Volcanic eruptions recorded in the Illimani ice core (Bolivia): 1918 -1998 and Tambora periods, Atmos. Chem. Phys, vol.3, pp.1725-1741, 2003.
URL : https://hal.archives-ouvertes.fr/hal-00328349

R. Delmas and M. Pourchet, Utilisation des filtres échangeurs d'ions pour l'étude de l'activité b globale d'un carottage glaciologique, vol.118, pp.159-163, 1977.

P. Delmelle, M. Lambert, Y. Dufrêne, P. Gerin, and N. Oskarsson, Gas/aerosol -ash interaction in volcanic plumes: New insights from surface analysis of fine ash particles, Earth Planet. Sci. Lett, vol.259, pp.159-170, 2007.

S. Diaz, Ozone and UV radiation over South America: Climatology and anomalies, Photochem. Photobiol, vol.2, pp.834-843, 2006.

, Environmental Radioactivity From Natural, Industrial and Military Sources, 1997.

O. Eisen, Ground-based measurements of spatial and temporal variability of snow accumulation in East Antarctica, Rev. Geophys, 2008.
URL : https://hal.archives-ouvertes.fr/insu-00378349

A. A. Ekaykin, V. Y. Lipenkov, N. I. Barkov, J. R. Petit, and V. Masson-delmotte, Spatial and temporal variability in isotope composition of recent snow in the vicinity of Vostok Station: implications for ice-core record interpretation, Ann. Glaciol, vol.35, pp.181-186, 2002.

A. Ekaykin, V. Lipenkov, I. Kuzmina, J. R. Petit, V. Masson-delmotte et al., The changes in isotope composition and accumulation of snow at Vostok station, East Antarctica, over the past 200 years, Ann. Glaciol, vol.39, pp.569-575, 2004.

, Eight glacial cycles from an Antarctic ice core, EPICA community members, vol.429, pp.623-628, 2004.

H. C. Fricke and J. R. O'neil, The correlation between 18 O/ 16 O ratios of meteoric water and surface temperature: Its use in investigating terrestrial climate change over geologic time, Earth Planet. Sci. Lett, vol.170, pp.181-196, 1999.

J. N. Galloway, W. C. Keene, and G. E. Likens, Processes controlling the composition of precipitation at a remote southern hemispheric location: Torres del Paine National Park, J. Geophys. Res, vol.101, issue.D3, pp.6883-6897, 1996.

R. Garreaud, M. Vuille, R. Compagnucci, and J. Marengo, Presentday South American Climate, Palaeogeogr. Palaeoclimatol. Palaeoecol, 2008.

N. P. Gillett, T. D. Kell, and P. D. Jones, Regional climate impacts of the Southern Annular Mode, Geophys. Res. Lett, vol.33, p.23704, 2006.

P. Ginot, F. Stampfli, D. Stampfli, M. Schwikowski, and H. W. Gäggeler, FELICS, a new ice core drilling system for high-altitude glaciers, Mem. Natl. Inst. Polar Res., Spec. Issue, vol.56, pp.38-48, 2002.

E. D. Goldberg, Geochronology with Lead-210, in Radioactive Dating, Proceedings of a Symposium, pp.121-131, 1963.

N. E. Graham, Simulation of recent global temperature trends, Science, vol.267, pp.666-671, 1995.

G. Hoffmann, M. Werner, and M. Heimann, The water isotope module of the ECHAM atmospheric general circulation model: A study on time scales from days to several years, J. Geophys. Res, vol.103, issue.D14, pp.871-887, 1998.

K. Ichiyanagi, A. Numaguti, and K. Kato, Interannual variations of stable isotopes in Antarctic precipitation in response to El Niño Southern Oscillation, Geophys. Res. Lett, vol.29, issue.1, p.1001, 2002.

M. Ikegami, K. Okada, Y. Zaizen, and Y. Makino, Sea-salt particles in the upper tropical troposphere, Tellus, vol.46, pp.142-151, 1994.

M. Instituto-geográfico, , p.32, 1982.

J. Inoue, H. Kondo, Y. Fujikoshi, T. Yamada, H. Fukami et al., Summer climate of the Northern Patagonia Icefield, Bull. Glacier Res, vol.4, pp.7-14, 1987.

S. Johnsen and G. Q. Robin, Diffusion of stable isotopes, The Climatic Record in Polar Ice Sheets, pp.57-63, 1983.

E. Kalnay, The NCEP/NCAR 40-year reanalysis project, Bull. Am. Meteorol. Soc, vol.7, pp.437-471, 1996.

W. Keene, A. Pszenny, J. Galloway, and M. Hawley, Sea-salt corrections and interpretation of constituent ratios in marine precipitation, J. Geophys. Res, vol.91, issue.D6, pp.6647-6658, 1986.

T. Kitzberger, T. W. Swetnam, and T. T. Veblen, Inter-hemispheric synchrony of forest fires and the El Niño-Southern Oscillation, Global Ecol. Biogeogr, vol.10, pp.315-326, 2001.

D. Krishnaswami, J. M. Lal, M. Martin, and M. Meybeck, Geochronology of lake sediments, Earth Planet. Sci. Lett, vol.11, pp.407-414, 1971.

J. C. Labraga, Extreme winds in the Pampa del Castillo Plateau, Patagonia, Argentina, with reference to Wind Farm Settlement, J. Appl. Meteorol, vol.33, pp.85-95, 1994.

F. Lamy, D. Hebbeln, U. Rohl, and G. Wefer, Holocene rainfall variability in southern Chile: A marine record of latitudinal shifts of the Southern Westerlies, Earth Planet. Sci. Lett, vol.185, pp.369-382, 2001.

O. Magand and F. Arnaud, Response on the comment from Ribeiro Guevara and Arribere on the article ''Radionuclide profiles (Pb-210, Cs-137, Am-241) of recent lake sediments in a highly geodynamic settings (Lakes Puyehue and Icalma-Chilean Lake District, Sci. Total Environ, vol.385, pp.312-314, 2007.

M. E. Mann and J. M. Lees, Robust estimation of background noise and signal detection in climatic series, Clim. Change, vol.33, pp.409-445, 1996.

K. Matsuoka and R. Naruse, Mass balance features derived from a firn core at Hielo Patagonico Norte, South America, Arct. Antarct. Alpine Res, vol.31, pp.333-340, 1999.

L. E. Moxey, Mount Hudson's 1991 eruption provides Holocene paleoclimatic insights, Int. J. Remote Sens, vol.25, issue.6, pp.1053-1062, 2004.

J. A. Naranjo, H. Moreno, and N. Banks, La erupcion Volcán Hudson en 1991 (46°S°) Región XI, Bol. Serv. Nac. Geol. Min. Chile, vol.44, pp.1-50, 1993.

F. Oldfield, N. Richardson, and P. G. Appleby, Radiomatric dating ( 210 Pb, 137 Cs, 241 Am) of recent ombrotrophic peat accumulation and evidence for changes in mass balance, Holocene, vol.5, pp.141-148, 1995.

J. M. Paruelo, A. Beltran, E. Jobbággy, O. E. Sala, and R. A. Golluscio, The climate of Patagonia: General patterns and controls on biotic processes, Ecologia Austral, vol.8, pp.85-101, 1998.

E. B. Pereira, H. E. Evangelista, K. C. Pereira, I. F. Cavalcanti, and A. W. Setzer, Apportionment of black carbon in the South Shetland Islands, Antarctic Peninsula, J. Geophys. Res, vol.111, p.3303, 2006.

V. V. Popovnin, T. A. Danilova, and D. A. Petrakov, A pioneer mass balance estimate for a Patagonian glacier: Glaciar De los Tres, Change, vol.22, pp.255-267, 1999.

M. Pourchet, O. Magand, M. Frezzotti, A. A. Ekaykin, and J. G. Winter, Radionuclides deposition over Antarctica, J. Environ. Radioact, vol.68, pp.137-158, 2003.

N. Preiss, M. A. Mélières, and M. Pourchet, A compilation of data on lead 210 concentration in surface air and fluxes at the air-surface and water-sediment interfaces, J. Geophys. Res, vol.101, issue.D22, pp.847-875, 1996.

J. M. Prospero, P. Ginoux, O. Torres, and S. E. Nicholson, Environmental characterization of global sources of atmospheric soil dust derived from the NIMBUS-7 TOMS absorbing aerosol product, Rev. Geophys, vol.40, issue.1, p.1002, 2002.

E. Ramirez, A new Andean deep ice core from Nevado Ilimani, vol.6350, pp.337-350, 2003.

R. Guevara, S. , A. Rizzo, R. Sanchez, and M. Arribere, 210 Pb fluxes in sediment layers sampled from Northern Patagonia lakes, J. Radioanal. Nucl. Chem, vol.258, issue.3, pp.583-595, 2003.

A. Rivera, T. Benham, G. Casassa, J. Bamber, and J. Dowdeswell, Ice elevation and areal changes of glaciers from the Northern Patagonia icefield, Change, vol.59, pp.126-137, 2007.

K. Rosanski, L. Araguas-araguas, and R. Gonfiantini, Isotopic patterns in modern global precipitation, Climate Change in Continental Isotopic Records, vol.78, pp.1-37, 1993.

W. I. Rose, G. J. Bluth, and G. G. Ernst, Integrating retrievals of volcanic cloud characteristics from satellite remote sensors: A summary, Phil. Trans. R. Soc. London Ser. A, vol.358, pp.1585-1606, 2000.

B. Rosenbluth, H. A. Fuenzalida, and P. Aceituno, Recent temperature variations in southern South America, Int. J. Climatol, vol.17, pp.67-85, 1997.

C. Schneider and D. Gies, Effects of El Niño-Southern Oscillation on southernmost South America precipitation at 53°S revealed from NCEP-NCAR reanalyses and weather station data, Int. J. Climatol, vol.24, pp.1057-1076, 2004.

C. Schneider, M. Glaser, R. Kilian, A. Santana, N. Butorovic et al., Weather observations across the southern Andes at 53°S, Phys. Geogr, vol.24, pp.97-119, 2003.

M. Schwikowski, S. Brütsch, G. Casassa, and A. Rivera, A potential high-elevation ice-core site at Hielo Patagónico Sur, Ann. Glaciol, vol.43, pp.8-13, 2006.

Y. Shinozuka, A. D. Clarke, S. G. Howell, V. N. Kapustin, and B. J. Huebert, Sea-salt vertical profiles over the Southern and tropical Pacific oceans: Microphysics, optical properties, spatial variability, and variations with wind speed, J. Geophys. Res, vol.109, p.24201, 2004.

T. Shiraiwa, S. Kohshima, R. Uemura, N. Yoshida, S. Matoba et al., High net accumulation rates at Campo de Hielo Patagonico Sur, South America, revealed by analysis of a 45, Ann. Glaciol, vol.35, pp.84-90, 2002.

H. B. Singh, L. J. Salas, B. A. Ridley, J. D. Shetter, N. M. Donahue et al., Relationship between peroxyavetyl nitrate and nitrogen oxides in the clean troposphere, Nature, vol.318, pp.347-349, 1985.

J. L. Smellie, The upper Cenozoic tephra record in the south polar region: A review, Global Planet, Change, vol.21, pp.51-70, 1999.

J. T. Smith, Why should we believe 210 Pb sediment geochronologies?, J. Environ. Radioact, vol.55, pp.121-123, 2001.

R. E. Stoiber and W. I. Rose, Fumarole incrustation of active Central American volcanoes, Geochim. Cosmochim. Acta, vol.38, pp.495-516, 1974.

D. W. Thompson and S. Solomon, Interpretation of recent Southern Hemisphere climate change, Science, vol.296, pp.895-899, 2002.

L. G. Thompson, E. Mosley-thompson, and K. A. Henderson, Icecore palaeoclimate records in tropical South America since the last glacial maximum, J. Quaternary Sci, vol.15, pp.377-394, 2000.

L. G. Thompson, E. Mosley-thompson, M. E. Davis, P. N. Lin, K. Henderson et al., Tropical glacier and ice core evidence of climate change on annual to millenial time scales, Clim. Change, vol.59, pp.137-155, 2003.

K. E. Trenberth and T. J. Hoar, The 1990 -1995 El Niño-Southern oscillation event: Longest on record, Geophys. Res. Lett, vol.23, pp.57-60, 1996.

S. M. Uppala, The ERA-40 reanalysis, Q. J. R. Meterol. Soc, vol.131, pp.2961-3012, 2005.
URL : https://hal.archives-ouvertes.fr/hal-02946298

T. T. Veblen and T. Kitzberger, Inter-hemispheric comparison of fire history: The Colorado Front Range, .A., and the Northern Patagonian Andes, vol.163, pp.187-207, 2002.

R. Villalba, J. A. Bonnisegna, T. T. Veblen, A. Schmelter, and S. Rubulis, Recent trends in tree-ring records from high elevation sites in the Andes of Northern Patagonia, Clim. Change, vol.36, pp.425-454, 1997.

R. Villalba, E. R. Cook, G. C. Jacoby, R. D. D'arrigo, T. Veblen et al., Tree-ring based reconstructions of Northern Patagonia precipitation since AD 1600, Holocene, vol.8, pp.659-674, 1998.

R. Villalba, A. Lara, J. A. Boninsegna, M. Masiokas, S. Delgado et al., Clim. Change, vol.59, pp.177-232, 2003.

F. Vimeux, V. Masson, J. Jouzel, M. Stievenard, and J. R. Petit, Glacial -interglacial changes in ocean surface conditions in the Southern Hemisphere, Nature, vol.398, pp.410-413, 1999.

V. Glascow, R. , and R. Sander, Modelling halogen chemistry in the marine boundary layer 1. Cloud-free MBL, J. Geophys. Res, vol.107, issue.D17, p.4341, 2002.

D. Wagenbach, F. Ducroz, R. Mulvaney, L. Keck, A. Minikin et al., Sea-salt aerosol in coastal Antarctic regions, J. Geophys. Res, vol.103, issue.D9, p.974, 1998.

M. Werner and M. Heimann, Modelling interannual variability of water isotopes in Greenland and Antarctica, J. Geophys. Res, vol.107, issue.D1, p.4001, 2002.

C. S. Witham, C. Oppenheimer, and C. J. Horwell, Volcanic ashleachates: A review and recommendations for sampling methods, J, vol.141, pp.299-326, 2005.

E. Wolff, Southern Ocean sea-ice extent, productivity and iron flux over the past eight glacial cycles, Nature, vol.440, pp.491-496, 2006.
URL : https://hal.archives-ouvertes.fr/insu-00375835

D. C. Woods, R. L. Chuan, and W. I. Rose, Halite particles injected into the stratosphere by the 1982 El Chichón eruption, Science, vol.230, pp.170-172, 1985.

T. Yamada, Glaciological characteristics revealed by 37.6-m deep ice core drilled at the accumulation area of San Rafael Glacier, the Northern Patagonian Icefield, Bull. Glacier Res, vol.4, pp.59-67, 1987.

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G. Casassa, C. , C. De-estudios, and . Científicos, Av. Prat, vol.514

M. De-angelis, O. Magand, L. Lgge, . De-glaciologie, C. Et-géophysique-de-l'environnement et al., Orme des Merisiers, Juliane Maries Vej, vol.54