Increased mass loss of glaciers in Volcán Domuyo (Argentinian Andes) between 1962 and 2020, revealed by aerial photos and satellite stereo imagery

We present geodetic mass-balance estimates for ten glaciers (22.6 ± 1.1 km2) around Volcán Domuyo between 1962 and 2020 (and 46 glaciers covering 29 ± 1.5 km2 between 1984 and 2020), derived from airborne, ASTER and Pléiades imagery. Overall, we find a slightly negative mass balance (−0.15 ± 0.09 m...

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Main Authors: Daniel Falaschi, Etienne Berthier, Joaquín M. C. Belart, Claudio Bravo, Mariano Castro, Marcelo Durand, Ricardo Villalba
Format: Article
Language:English
Published: Cambridge University Press 2023-02-01
Series:Journal of Glaciology
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S0022143022000430/type/journal_article
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author Daniel Falaschi
Etienne Berthier
Joaquín M. C. Belart
Claudio Bravo
Mariano Castro
Marcelo Durand
Ricardo Villalba
author_facet Daniel Falaschi
Etienne Berthier
Joaquín M. C. Belart
Claudio Bravo
Mariano Castro
Marcelo Durand
Ricardo Villalba
author_sort Daniel Falaschi
collection DOAJ
description We present geodetic mass-balance estimates for ten glaciers (22.6 ± 1.1 km2) around Volcán Domuyo between 1962 and 2020 (and 46 glaciers covering 29 ± 1.5 km2 between 1984 and 2020), derived from airborne, ASTER and Pléiades imagery. Overall, we find a slightly negative mass balance (−0.15 ± 0.09 m w.e. a–1) for the entire 1962–2020 time span. A closer inspection of sub-periods reveals, however, an increasingly negative mass balance with time. The Domuyo glaciers shifted from a moderately positive mass balance of +0.28 ± 0.13 m w.e. a–1 between 1962 and 1984, to a strongly negative mass balance of −0.99 ± 0.19 m w.e. a–1 between 2012 and 2020. An increase in summer temperatures and a decrease in winter precipitation during the last four decades are likely drivers of the observed glacier changes. We support this finding by implementing a minimal glacier model, relying solely on monthly precipitation and air temperatures. The mass-balance evolution detected in Volcán Domuyo is consistent with other sites spread across the Central Andes, suggesting rapidly increasing glacier wastage impacts are occurring at a geographically wider scale.
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spelling doaj.art-7738ba1181564f04b027fb606aec69e62023-03-09T12:41:21ZengCambridge University PressJournal of Glaciology0022-14301727-56522023-02-0169405610.1017/jog.2022.43Increased mass loss of glaciers in Volcán Domuyo (Argentinian Andes) between 1962 and 2020, revealed by aerial photos and satellite stereo imageryDaniel Falaschi0https://orcid.org/0000-0001-9232-2813Etienne Berthier1https://orcid.org/0000-0001-5978-9155Joaquín M. C. Belart2https://orcid.org/0000-0002-0853-8935Claudio Bravo3https://orcid.org/0000-0003-4822-4786Mariano Castro4Marcelo Durand5Ricardo Villalba6https://orcid.org/0000-0001-8183-0310Instituto Argentino de Nivologia, Glaciología y Ciencias Ambientales, Mendoza, Argentina Departamento de Geografía, Facultad de Filosofía y Letras, Universidad Nacional de Cuyo, Mendoza, Argentina School of Geography and Sustainable Development, University of St. Andrews, St. Andrews, Scotland, UKLaboratoire d'Etudes en Géophysique et Océanographie Spatiales, Université de Toulouse, CNES, CNRS, IRD, UPS, Toulouse, FranceNational Land Survey of Iceland, Akranes, Iceland Institute of Earth Sciences, University of Iceland, Reykjavík, IcelandCentro de Estudios Científicos, Valdivia, ChileInstituto Argentino de Nivologia, Glaciología y Ciencias Ambientales, Mendoza, ArgentinaDepartamento de Geodesia y Topografía, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, San Miquel de Tucuman, ArgentinaInstituto Argentino de Nivologia, Glaciología y Ciencias Ambientales, Mendoza, ArgentinaWe present geodetic mass-balance estimates for ten glaciers (22.6 ± 1.1 km2) around Volcán Domuyo between 1962 and 2020 (and 46 glaciers covering 29 ± 1.5 km2 between 1984 and 2020), derived from airborne, ASTER and Pléiades imagery. Overall, we find a slightly negative mass balance (−0.15 ± 0.09 m w.e. a–1) for the entire 1962–2020 time span. A closer inspection of sub-periods reveals, however, an increasingly negative mass balance with time. The Domuyo glaciers shifted from a moderately positive mass balance of +0.28 ± 0.13 m w.e. a–1 between 1962 and 1984, to a strongly negative mass balance of −0.99 ± 0.19 m w.e. a–1 between 2012 and 2020. An increase in summer temperatures and a decrease in winter precipitation during the last four decades are likely drivers of the observed glacier changes. We support this finding by implementing a minimal glacier model, relying solely on monthly precipitation and air temperatures. The mass-balance evolution detected in Volcán Domuyo is consistent with other sites spread across the Central Andes, suggesting rapidly increasing glacier wastage impacts are occurring at a geographically wider scale.https://www.cambridge.org/core/product/identifier/S0022143022000430/type/journal_articleGlacier mass balanceglacier modellingglacier volumemountain glaciers
spellingShingle Daniel Falaschi
Etienne Berthier
Joaquín M. C. Belart
Claudio Bravo
Mariano Castro
Marcelo Durand
Ricardo Villalba
Increased mass loss of glaciers in Volcán Domuyo (Argentinian Andes) between 1962 and 2020, revealed by aerial photos and satellite stereo imagery
Journal of Glaciology
Glacier mass balance
glacier modelling
glacier volume
mountain glaciers
title Increased mass loss of glaciers in Volcán Domuyo (Argentinian Andes) between 1962 and 2020, revealed by aerial photos and satellite stereo imagery
title_full Increased mass loss of glaciers in Volcán Domuyo (Argentinian Andes) between 1962 and 2020, revealed by aerial photos and satellite stereo imagery
title_fullStr Increased mass loss of glaciers in Volcán Domuyo (Argentinian Andes) between 1962 and 2020, revealed by aerial photos and satellite stereo imagery
title_full_unstemmed Increased mass loss of glaciers in Volcán Domuyo (Argentinian Andes) between 1962 and 2020, revealed by aerial photos and satellite stereo imagery
title_short Increased mass loss of glaciers in Volcán Domuyo (Argentinian Andes) between 1962 and 2020, revealed by aerial photos and satellite stereo imagery
title_sort increased mass loss of glaciers in volcan domuyo argentinian andes between 1962 and 2020 revealed by aerial photos and satellite stereo imagery
topic Glacier mass balance
glacier modelling
glacier volume
mountain glaciers
url https://www.cambridge.org/core/product/identifier/S0022143022000430/type/journal_article
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