Slight mass loss revealed by reanalyzing glacier mass-balance observations on Glaciar Antisana 15 alpha (inner tropics) during the 1995-2012 period
International audience In this paper, we reanalyze the glacier mass balance on Glaciar Antisana 15α over the 1995– 2012 period. Annual glacier mass balances were quantified on the basis of monthly glaciological measurements using an adaptation of Lliboutry's statistical approach. The geodetic m...
Published in: | Journal of Glaciology |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2016
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Subjects: | |
Online Access: | https://hal-insu.archives-ouvertes.fr/insu-01387555 https://hal-insu.archives-ouvertes.fr/insu-01387555/document https://hal-insu.archives-ouvertes.fr/insu-01387555/file/JOURNAL%20OF%20GLACIOLOGY%20-%20Slight%20mass%20loss%20revealed%20by%20reanalyzing%20glacier%20mass-balance%20observations%20on%20Glaciar%20Antisana%2015%20alpha%20%28inner%20tropics%29%20during%20the%201995-2012%20period.pdf https://doi.org/10.1017/jog.2016.17 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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English |
topic |
tropical glaciers photogrammetry accumulation processes glacier mass balance [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
tropical glaciers photogrammetry accumulation processes glacier mass balance [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Basantes-Serrano, Rubén Rabatel, Antoine Francou, Bernard Vincent, Christian Maisincho, Luis Cáceres, Bolívar Galarraga, Remigio Alvarez, Danilo Slight mass loss revealed by reanalyzing glacier mass-balance observations on Glaciar Antisana 15 alpha (inner tropics) during the 1995-2012 period |
topic_facet |
tropical glaciers photogrammetry accumulation processes glacier mass balance [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience In this paper, we reanalyze the glacier mass balance on Glaciar Antisana 15α over the 1995– 2012 period. Annual glacier mass balances were quantified on the basis of monthly glaciological measurements using an adaptation of Lliboutry's statistical approach. The geodetic mass balance was computed between 1997 and 2009 giving a cumulative balance of −1.39 ± 1.97 m w.e. and a slightly negative adjusted annual glaciological mass balance (−0.12 ± 0.16 m w.e. a −1). Despite a careful analysis of uncertainties, we found a large discrepancy between the cumulative glaciological and the geo-detic mass balances over the common period, of 4.66 m w.e. This discrepancy can mainly be explained by underestimated net accumulation in the glacier upper reaches, which could be due to the peculiar climate conditions of the equatorial zone with year round accumulation, thereby preventing clear identification of annual layers. An increase of ∼70% in measured rates of net accumulation would be needed to balance the glaciological and geodetic mass balances; a hypothesis confirmed by estimated ice flux in the vicinity of the ELA. Consequently, the vertical gradient of precipitation may be higher than previously estimated and the accumulation processes (including the role of frost deposition) need to be carefully analyzed. |
author2 |
Laboratoire d'étude des transferts en hydrologie et environnement (LTHE) Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Centre National de la Recherche Scientifique (CNRS) INAMHI (INAMHI) Ministerio de Minas y Energia Escuela Politécnica Nacional (EPN) IGM |
format |
Article in Journal/Newspaper |
author |
Basantes-Serrano, Rubén Rabatel, Antoine Francou, Bernard Vincent, Christian Maisincho, Luis Cáceres, Bolívar Galarraga, Remigio Alvarez, Danilo |
author_facet |
Basantes-Serrano, Rubén Rabatel, Antoine Francou, Bernard Vincent, Christian Maisincho, Luis Cáceres, Bolívar Galarraga, Remigio Alvarez, Danilo |
author_sort |
Basantes-Serrano, Rubén |
title |
Slight mass loss revealed by reanalyzing glacier mass-balance observations on Glaciar Antisana 15 alpha (inner tropics) during the 1995-2012 period |
title_short |
Slight mass loss revealed by reanalyzing glacier mass-balance observations on Glaciar Antisana 15 alpha (inner tropics) during the 1995-2012 period |
title_full |
Slight mass loss revealed by reanalyzing glacier mass-balance observations on Glaciar Antisana 15 alpha (inner tropics) during the 1995-2012 period |
title_fullStr |
Slight mass loss revealed by reanalyzing glacier mass-balance observations on Glaciar Antisana 15 alpha (inner tropics) during the 1995-2012 period |
title_full_unstemmed |
Slight mass loss revealed by reanalyzing glacier mass-balance observations on Glaciar Antisana 15 alpha (inner tropics) during the 1995-2012 period |
title_sort |
slight mass loss revealed by reanalyzing glacier mass-balance observations on glaciar antisana 15 alpha (inner tropics) during the 1995-2012 period |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal-insu.archives-ouvertes.fr/insu-01387555 https://hal-insu.archives-ouvertes.fr/insu-01387555/document https://hal-insu.archives-ouvertes.fr/insu-01387555/file/JOURNAL%20OF%20GLACIOLOGY%20-%20Slight%20mass%20loss%20revealed%20by%20reanalyzing%20glacier%20mass-balance%20observations%20on%20Glaciar%20Antisana%2015%20alpha%20%28inner%20tropics%29%20during%20the%201995-2012%20period.pdf https://doi.org/10.1017/jog.2016.17 |
long_lat |
ENVELOPE(9.642,9.642,63.170,63.170) |
geographic |
Ela |
geographic_facet |
Ela |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
ISSN: 0022-1430 Journal of Glaciology https://hal-insu.archives-ouvertes.fr/insu-01387555 Journal of Glaciology, International Glaciological Society, 2016, 62 (231), pp.124 - 136. ⟨10.1017/jog.2016.17⟩ |
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op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1017/jog.2016.17 |
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Journal of Glaciology |
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ftccsdartic:oai:HAL:insu-01387555v1 2023-05-15T16:57:37+02:00 Slight mass loss revealed by reanalyzing glacier mass-balance observations on Glaciar Antisana 15 alpha (inner tropics) during the 1995-2012 period Basantes-Serrano, Rubén Rabatel, Antoine Francou, Bernard Vincent, Christian Maisincho, Luis Cáceres, Bolívar Galarraga, Remigio Alvarez, Danilo Laboratoire d'étude des transferts en hydrologie et environnement (LTHE) Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Centre National de la Recherche Scientifique (CNRS) INAMHI (INAMHI) Ministerio de Minas y Energia Escuela Politécnica Nacional (EPN) IGM 2016 https://hal-insu.archives-ouvertes.fr/insu-01387555 https://hal-insu.archives-ouvertes.fr/insu-01387555/document https://hal-insu.archives-ouvertes.fr/insu-01387555/file/JOURNAL%20OF%20GLACIOLOGY%20-%20Slight%20mass%20loss%20revealed%20by%20reanalyzing%20glacier%20mass-balance%20observations%20on%20Glaciar%20Antisana%2015%20alpha%20%28inner%20tropics%29%20during%20the%201995-2012%20period.pdf https://doi.org/10.1017/jog.2016.17 en eng HAL CCSD International Glaciological Society info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2016.17 insu-01387555 https://hal-insu.archives-ouvertes.fr/insu-01387555 https://hal-insu.archives-ouvertes.fr/insu-01387555/document https://hal-insu.archives-ouvertes.fr/insu-01387555/file/JOURNAL%20OF%20GLACIOLOGY%20-%20Slight%20mass%20loss%20revealed%20by%20reanalyzing%20glacier%20mass-balance%20observations%20on%20Glaciar%20Antisana%2015%20alpha%20%28inner%20tropics%29%20during%20the%201995-2012%20period.pdf doi:10.1017/jog.2016.17 info:eu-repo/semantics/OpenAccess ISSN: 0022-1430 Journal of Glaciology https://hal-insu.archives-ouvertes.fr/insu-01387555 Journal of Glaciology, International Glaciological Society, 2016, 62 (231), pp.124 - 136. ⟨10.1017/jog.2016.17⟩ tropical glaciers photogrammetry accumulation processes glacier mass balance [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2016 ftccsdartic https://doi.org/10.1017/jog.2016.17 2021-11-07T04:12:13Z International audience In this paper, we reanalyze the glacier mass balance on Glaciar Antisana 15α over the 1995– 2012 period. Annual glacier mass balances were quantified on the basis of monthly glaciological measurements using an adaptation of Lliboutry's statistical approach. The geodetic mass balance was computed between 1997 and 2009 giving a cumulative balance of −1.39 ± 1.97 m w.e. and a slightly negative adjusted annual glaciological mass balance (−0.12 ± 0.16 m w.e. a −1). Despite a careful analysis of uncertainties, we found a large discrepancy between the cumulative glaciological and the geo-detic mass balances over the common period, of 4.66 m w.e. This discrepancy can mainly be explained by underestimated net accumulation in the glacier upper reaches, which could be due to the peculiar climate conditions of the equatorial zone with year round accumulation, thereby preventing clear identification of annual layers. An increase of ∼70% in measured rates of net accumulation would be needed to balance the glaciological and geodetic mass balances; a hypothesis confirmed by estimated ice flux in the vicinity of the ELA. Consequently, the vertical gradient of precipitation may be higher than previously estimated and the accumulation processes (including the role of frost deposition) need to be carefully analyzed. Article in Journal/Newspaper Journal of Glaciology Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Ela ENVELOPE(9.642,9.642,63.170,63.170) Journal of Glaciology 62 231 124 136 |