Articles | Volume 13, issue 3
https://doi.org/10.5194/tc-13-997-2019
https://doi.org/10.5194/tc-13-997-2019
Brief communication
 | 
26 Mar 2019
Brief communication |  | 26 Mar 2019

Brief communication: Collapse of 4 Mm3 of ice from a cirque glacier in the Central Andes of Argentina

Daniel Falaschi, Andreas Kääb, Frank Paul, Takeo Tadono, Juan Antonio Rivera, and Luis Eduardo Lenzano

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Cited articles

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Brenning, A. and Azócar, G. F.: Statistical analysis of topographic and climatic controls and multispectral signatures of rock glaciers in the dry Andes, Chile (27–33 S), Permafrost Periglac., 21, 54–66, https://doi.org/10.1002/ppp.670, 2010. 
Brenning, A. and Trombotto, D.: Logistic regression modeling of rock glacier and glacier distribution: Topographic and climatic controls in the semi-arid Andes, Geomorphology, 81, 141–154, https://doi.org/10.1016/j.geomorph.2006.04.003, 2006. 
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Short summary
In March 2007, the Leñas Glacier in the Central Andes of Argentina collapsed and released an ice avalanche that travelled a distance of 2 km. We analysed aerial photos, satellite images and field evidence to investigate the evolution of the glacier from the 1950s through the present day. A clear potential trigger of the collapse could not be identified from available meteorological and seismic data, nor could a significant change in glacier geometry leading to glacier instability be detected.