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Mass changes of alpine glaciers at the eastern margin of the Northern and Southern Patagonian Icefields between 2000 and 2012

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Bolch_2017_JoG_MassChanges_CCBY_VoR.pdf (1.276Mb)
Date
04/2017
Author
Falaschi, Daniel
Bolch, Tobias
Rastner, Philipp
Lenzano, María Gabriela
Lenzano, Luis
Lo Vecchio, Andrés
Moragues, Silvana
Keywords
glacier mass balance
glacier volume
mountain glaciers
Earth-Surface Processes
3rd-DAS
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Abstract
Despite renewed efforts to better understand glacier change and recognize glacier change trends in the Andes, relatively large areas in the Andes of Argentina and Chile are still not investigated. In this study, we report on glacier elevation and mass changes in the outer region of the Northern and Southern Patagonian Icefields in the Southern Patagonian Andes. A newly-compiled Landsat ETM+ derived glacier inventory (consisting of 2253 glaciers and ∼1314 ± 66 km2 of ice area) and differencing of the SRTM and SPOT5 DEMs were used to derive glacier-specific elevation changes over the 2000-12 period. The investigated glaciers showed a volume change of -0.71 ± 0.55 km3 a-1, yielding a surface lowering of 0.52 ± 0.35 m a-1 on average and an overall mass loss of 0.46 ± 0.37 m w.e. a-1. Highly variable individual glacier responses were observed and interestingly, they were less negative than previously reported for the neighboring Patagonian Icefields.
Citation
Falaschi , D , Bolch , T , Rastner , P , Lenzano , M G , Lenzano , L , Lo Vecchio , A & Moragues , S 2017 , ' Mass changes of alpine glaciers at the eastern margin of the Northern and Southern Patagonian Icefields between 2000 and 2012 ' , Journal of Glaciology , vol. 63 , no. 238 , pp. 258-272 . https://doi.org/10.1017/jog.2016.136
Publication
Journal of Glaciology
Status
Peer reviewed
DOI
https://doi.org/10.1017/jog.2016.136
ISSN
0022-1430
Type
Journal article
Rights
© The Author(s) 2016. This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/17270

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