Recent mass-balance changes of Agua Negra glacier (30°S) in the Desert Andes of Argentina
International audience The Desert Andes contain >4500 ice masses, but only a handful are currently being monitored. We present the mass changes of the small mountain glacier Agua Negra (1 km 2 ) and of the rest of glaciers in the Jáchal river basin. Remote-sensing data show Agua Negra glacier los...
Published in: | Journal of Glaciology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal.science/hal-03719674 https://hal.science/hal-03719674/document https://hal.science/hal-03719674/file/recent-mass-balance-changes-of-agua-negra-glacier-30s-in-the-desert-andes-of-argentina.pdf https://doi.org/10.1017/jog.2022.22 |
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ftinsu:oai:HAL:hal-03719674v1 2023-12-17T10:32:37+01:00 Recent mass-balance changes of Agua Negra glacier (30°S) in the Desert Andes of Argentina Pitte, Pierre Masiokas, Mariano Gargantini, Hernán Ruiz, Lucas Berthier, Etienne Ferri Hidalgo, Lidia Zalazar, Laura Dussaillant, Inés Viale, Maximiliano Zorzut, Valentina Corvalán, Ernesto Scarpa, Juan Pablo Costa, Gustavo Villalba, Ricardo Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) 2022-06-01 https://hal.science/hal-03719674 https://hal.science/hal-03719674/document https://hal.science/hal-03719674/file/recent-mass-balance-changes-of-agua-negra-glacier-30s-in-the-desert-andes-of-argentina.pdf https://doi.org/10.1017/jog.2022.22 en eng HAL CCSD International Glaciological Society info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2022.22 hal-03719674 https://hal.science/hal-03719674 https://hal.science/hal-03719674/document https://hal.science/hal-03719674/file/recent-mass-balance-changes-of-agua-negra-glacier-30s-in-the-desert-andes-of-argentina.pdf doi:10.1017/jog.2022.22 http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess ISSN: 0022-1430 EISSN: 1727-5652 Journal of Glaciology https://hal.science/hal-03719674 Journal of Glaciology, 2022, pp.1-13. ⟨10.1017/jog.2022.22⟩ [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2022 ftinsu https://doi.org/10.1017/jog.2022.22 2023-11-22T17:30:41Z International audience The Desert Andes contain >4500 ice masses, but only a handful are currently being monitored. We present the mass changes of the small mountain glacier Agua Negra (1 km 2 ) and of the rest of glaciers in the Jáchal river basin. Remote-sensing data show Agua Negra glacier lost 23% of its area during 1959–2019. Glaciological measurements during 2014–2021 indicate an average annual mass balance of −0.52 m w.e. a −1 , with mean winter and summer balances of 0.80 and −1.33 m w.e. a −1 , respectively. The Equilibrium Line Altitude (ELA) is estimated to be 5100 ± 100 m a.s.l., which corresponds to an Accumulation Area Ratio (AAR) of 0.28 ± 0.21. Geodetic data from SRTM X and Pléiades show a doubling of the loss rate from −0.32 ± 0.03 m w.e. a −1 in 2000–2013, to −0.66 ± 0.06 m w.e. a −1 in 2013–2019. Comparatively, the ice losses for the entire Jáchal river basin (25 500 km 2 ) derived from ASTER show less negative values, −0.11 ± 16 m w.e. a −1 for 2000–2012 and −0.23 ± 14 m w.e. a −1 for 2012–2018. The regional warming trend since 1979 and a recent decline in snow accumulation are probably driving the observed glacier mass balance. Article in Journal/Newspaper Journal of Glaciology Institut national des sciences de l'Univers: HAL-INSU Argentina Ela ENVELOPE(9.642,9.642,63.170,63.170) Journal of Glaciology 1 13 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
[SDE.MCG]Environmental Sciences/Global Changes Pitte, Pierre Masiokas, Mariano Gargantini, Hernán Ruiz, Lucas Berthier, Etienne Ferri Hidalgo, Lidia Zalazar, Laura Dussaillant, Inés Viale, Maximiliano Zorzut, Valentina Corvalán, Ernesto Scarpa, Juan Pablo Costa, Gustavo Villalba, Ricardo Recent mass-balance changes of Agua Negra glacier (30°S) in the Desert Andes of Argentina |
topic_facet |
[SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience The Desert Andes contain >4500 ice masses, but only a handful are currently being monitored. We present the mass changes of the small mountain glacier Agua Negra (1 km 2 ) and of the rest of glaciers in the Jáchal river basin. Remote-sensing data show Agua Negra glacier lost 23% of its area during 1959–2019. Glaciological measurements during 2014–2021 indicate an average annual mass balance of −0.52 m w.e. a −1 , with mean winter and summer balances of 0.80 and −1.33 m w.e. a −1 , respectively. The Equilibrium Line Altitude (ELA) is estimated to be 5100 ± 100 m a.s.l., which corresponds to an Accumulation Area Ratio (AAR) of 0.28 ± 0.21. Geodetic data from SRTM X and Pléiades show a doubling of the loss rate from −0.32 ± 0.03 m w.e. a −1 in 2000–2013, to −0.66 ± 0.06 m w.e. a −1 in 2013–2019. Comparatively, the ice losses for the entire Jáchal river basin (25 500 km 2 ) derived from ASTER show less negative values, −0.11 ± 16 m w.e. a −1 for 2000–2012 and −0.23 ± 14 m w.e. a −1 for 2012–2018. The regional warming trend since 1979 and a recent decline in snow accumulation are probably driving the observed glacier mass balance. |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Pitte, Pierre Masiokas, Mariano Gargantini, Hernán Ruiz, Lucas Berthier, Etienne Ferri Hidalgo, Lidia Zalazar, Laura Dussaillant, Inés Viale, Maximiliano Zorzut, Valentina Corvalán, Ernesto Scarpa, Juan Pablo Costa, Gustavo Villalba, Ricardo |
author_facet |
Pitte, Pierre Masiokas, Mariano Gargantini, Hernán Ruiz, Lucas Berthier, Etienne Ferri Hidalgo, Lidia Zalazar, Laura Dussaillant, Inés Viale, Maximiliano Zorzut, Valentina Corvalán, Ernesto Scarpa, Juan Pablo Costa, Gustavo Villalba, Ricardo |
author_sort |
Pitte, Pierre |
title |
Recent mass-balance changes of Agua Negra glacier (30°S) in the Desert Andes of Argentina |
title_short |
Recent mass-balance changes of Agua Negra glacier (30°S) in the Desert Andes of Argentina |
title_full |
Recent mass-balance changes of Agua Negra glacier (30°S) in the Desert Andes of Argentina |
title_fullStr |
Recent mass-balance changes of Agua Negra glacier (30°S) in the Desert Andes of Argentina |
title_full_unstemmed |
Recent mass-balance changes of Agua Negra glacier (30°S) in the Desert Andes of Argentina |
title_sort |
recent mass-balance changes of agua negra glacier (30°s) in the desert andes of argentina |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03719674 https://hal.science/hal-03719674/document https://hal.science/hal-03719674/file/recent-mass-balance-changes-of-agua-negra-glacier-30s-in-the-desert-andes-of-argentina.pdf https://doi.org/10.1017/jog.2022.22 |
long_lat |
ENVELOPE(9.642,9.642,63.170,63.170) |
geographic |
Argentina Ela |
geographic_facet |
Argentina Ela |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
ISSN: 0022-1430 EISSN: 1727-5652 Journal of Glaciology https://hal.science/hal-03719674 Journal of Glaciology, 2022, pp.1-13. ⟨10.1017/jog.2022.22⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2022.22 hal-03719674 https://hal.science/hal-03719674 https://hal.science/hal-03719674/document https://hal.science/hal-03719674/file/recent-mass-balance-changes-of-agua-negra-glacier-30s-in-the-desert-andes-of-argentina.pdf doi:10.1017/jog.2022.22 |
op_rights |
http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1017/jog.2022.22 |
container_title |
Journal of Glaciology |
container_start_page |
1 |
op_container_end_page |
13 |
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1785586409185214464 |