Rivera, A., C. Bunster, M.Sharp, P. Macdowell, R. Zamora,G. Neira, J. Wendt, L. Araya, D. Ulloa, M. Rodriguez, C. Acuña, M. Arévalo, G. Casassa, F.Ordenes, M. Siegert y F. Bown (2006) : "Expedición al lago subglacial Ellsworth" Boletín Antártico Chileno 25, 7 - 10.

La Expedición Científica Antártica (ECA) XLII (2005/2006), instrumento principal de la ejecución del Programa de Investigación Científica y Tecnológica Antártica del Instituto Antártico Chileno (PROCIEN), estuvo conformada por 18 proyectos, de los cuales 14 se ejecutaron efectivamente en...


Rivera, A., C. Acuña and G. Casassa (2006) : "Glacier variations in central Chile (32°S-41°S)" In: KNIGHT, P.G., (Ed.). Glacier Science and Environmental Change, Blackwell, Oxford, UK, .246-247.

Glaciers in the Chilean central Andes (Fig. 49.1, 32°S - 41°S) have shown significant frontal retreat, area shrinkage and ice thinning in an accelerating trend during recent decades, presumably in response to atmospheric warming and reduction of precipitation. Nearly 1600 glaciers with a total ic...


Rivera, A., F. Bown, R. Mella, J. Wendt, G. Casassa, C. Acuña, E. Rignot, J. Clavero & B. Brock (2006) : "Ice volumetric changes on active volcanoes in southern Chile" Annals of Glaciology, 43, 111 - 122.

Most of the glaciers in southern Chile have been retreating and shrinking during recent decades in response to atmospheric warming and decrease in precipitation. However, some glacier fluctuations are directly associated with the effusive and geothermal activity of ice-covered active volcanoes...

Rivera, A. (2005) : "Cambios climáticos. Los Glaciares de Patagonia" Revista Investigación y Ciencia, 349, 36-37.

Los glaciares de Patagonia, en el sur de Chile y Argentina, están sufriendo cambios que no tienen precedentes históricos. Su retroceso y adelgazamiento, a una velocidad que se ha duplicado en las últimas décadas, ha contribuido significativamente al aumento global del nivel del mar. Estudios rec...


Lara, A., A. Wolodarsky-Franke, J.C. Aravena, R. Villalba, M. E. Solari, L. Pezoa, A. Rivera & C. Le Quesne (2005) : "Climate fluctuations derived from tree-rings and other proxy-records in the Chilean Andes: State of the art and future prospects" In: HUBER, U., H. GUGMAN & M. REASONER (Eds.). Global change and Mountain regions. An overview of current knowledge. Advances in Global change research, The Netherlands, 145-156.

Treeline and high elevation sites in the central and southern Chilean Andes (32°39' to 55°S) have shown to be an excellent source of paleoenvironmental records because their physical and biological systems are highly sensitive to climatic and environmental variations. In addition, most of these ...


Raymond, C., Neumann, T., Rignot, E., Echelmeyer, K., Rivera A. and Casassa G (2005) : "Retreat of Tyndall Glacier, Patagonia, over the last half century" Journal of Glaciology, 51(173) 239-247.

We report measurements of ice surface elevation, ice thickness and surface area for Glaciar Tyndall, Patagonia, made in 1999–2002. The measurements, together with previously published observations, show acceleration over the last few decades of the rates of thinning and retreat of the main cal...


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