Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes
Glaciers in the northern Patagonian Andes (35-46°gS) have shown a dramatic decline in area in the last decades. However, little is known about glacier mass balance changes in this region. This study presents a geodetic mass balance estimate of Monte Tronador (41.15°gS; 71.88°gW) glaciers by comparin...
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ftconicet:oai:ri.conicet.gov.ar:11336/64223 2023-10-09T21:56:15+02:00 Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes Ruiz, Lucas Ernesto Léveillé Bourret, Étienne Viale, Maximiliano Pitte, Pedro Miguel Masiokas, Mariano Hugo application/pdf http://hdl.handle.net/11336/64223 eng eng Copernicus Publications info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-11-619-2017 info:eu-repo/semantics/altIdentifier/url/https://www.the-cryosphere.net/11/619/2017/ http://hdl.handle.net/11336/64223 Ruiz, Lucas Ernesto; Léveillé Bourret, Étienne; Viale, Maximiliano; Pitte, Pedro Miguel; Masiokas, Mariano Hugo; Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes; Copernicus Publications; The Cryosphere; 11; 1; 2-2017; 619-634 1994-0424 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ PATAGONIAN ANDES DIGITAL ELEVATION MODELS GLACIER CHANGES https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.5194/tc-11-619-2017 2023-09-24T18:17:02Z Glaciers in the northern Patagonian Andes (35-46°gS) have shown a dramatic decline in area in the last decades. However, little is known about glacier mass balance changes in this region. This study presents a geodetic mass balance estimate of Monte Tronador (41.15°gS; 71.88°gW) glaciers by comparing a Pléiades digital elevation model (DEM) acquired in 2012 with the Shuttle Radar Topography Mission (SRTM) X-band DEM acquired in 2000. We find a slightly negative Monte-Tronador-wide mass budget of g´0.17gw.e.gag´1 (ranging from g´0.54 to 0.14gw.e.gag´1 for individual glaciers) and a slightly negative trend in glacier extent (g´0.16g%gag´1) over the 2000-2012 period. With a few exceptions, debris-covered valley glaciers that descend below a bedrock cliff are losing mass at higher rates, while mountain glaciers with termini located above this cliff are closer to mass equilibrium. Climate variations over the last decades show a notable increase in warm season temperatures in the late 1970s but limited warming afterwards. These warmer conditions combined with an overall drying trend may explain the moderate ice mass loss observed at Monte Tronador. The almost balanced mass budget of mountain glaciers suggests that they are probably approaching a dynamic equilibrium with current (post-1977) climate, whereas the valley glaciers tongues will continue to retreat. The slightly negative overall mass budget of Monte Tronador glaciers contrasts with the highly negative mass balance estimates observed in the Patagonian ice fields further south. Fil: Ruiz, Lucas Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina Fil: Léveillé Bourret, Étienne. Centre National de la Recherche Scientifique; ... Article in Journal/Newspaper The Cryosphere CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentino Argentina Tronador ENVELOPE(-62.917,-62.917,-64.317,-64.317) The Cryosphere 11 1 619 634 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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ftconicet |
language |
English |
topic |
PATAGONIAN ANDES DIGITAL ELEVATION MODELS GLACIER CHANGES https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
PATAGONIAN ANDES DIGITAL ELEVATION MODELS GLACIER CHANGES https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Ruiz, Lucas Ernesto Léveillé Bourret, Étienne Viale, Maximiliano Pitte, Pedro Miguel Masiokas, Mariano Hugo Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes |
topic_facet |
PATAGONIAN ANDES DIGITAL ELEVATION MODELS GLACIER CHANGES https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Glaciers in the northern Patagonian Andes (35-46°gS) have shown a dramatic decline in area in the last decades. However, little is known about glacier mass balance changes in this region. This study presents a geodetic mass balance estimate of Monte Tronador (41.15°gS; 71.88°gW) glaciers by comparing a Pléiades digital elevation model (DEM) acquired in 2012 with the Shuttle Radar Topography Mission (SRTM) X-band DEM acquired in 2000. We find a slightly negative Monte-Tronador-wide mass budget of g´0.17gw.e.gag´1 (ranging from g´0.54 to 0.14gw.e.gag´1 for individual glaciers) and a slightly negative trend in glacier extent (g´0.16g%gag´1) over the 2000-2012 period. With a few exceptions, debris-covered valley glaciers that descend below a bedrock cliff are losing mass at higher rates, while mountain glaciers with termini located above this cliff are closer to mass equilibrium. Climate variations over the last decades show a notable increase in warm season temperatures in the late 1970s but limited warming afterwards. These warmer conditions combined with an overall drying trend may explain the moderate ice mass loss observed at Monte Tronador. The almost balanced mass budget of mountain glaciers suggests that they are probably approaching a dynamic equilibrium with current (post-1977) climate, whereas the valley glaciers tongues will continue to retreat. The slightly negative overall mass budget of Monte Tronador glaciers contrasts with the highly negative mass balance estimates observed in the Patagonian ice fields further south. Fil: Ruiz, Lucas Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina Fil: Léveillé Bourret, Étienne. Centre National de la Recherche Scientifique; ... |
format |
Article in Journal/Newspaper |
author |
Ruiz, Lucas Ernesto Léveillé Bourret, Étienne Viale, Maximiliano Pitte, Pedro Miguel Masiokas, Mariano Hugo |
author_facet |
Ruiz, Lucas Ernesto Léveillé Bourret, Étienne Viale, Maximiliano Pitte, Pedro Miguel Masiokas, Mariano Hugo |
author_sort |
Ruiz, Lucas Ernesto |
title |
Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes |
title_short |
Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes |
title_full |
Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes |
title_fullStr |
Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes |
title_full_unstemmed |
Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes |
title_sort |
recent geodetic mass balance of monte tronador glaciers, northern patagonian andes |
publisher |
Copernicus Publications |
url |
http://hdl.handle.net/11336/64223 |
long_lat |
ENVELOPE(-62.917,-62.917,-64.317,-64.317) |
geographic |
Argentino Argentina Tronador |
geographic_facet |
Argentino Argentina Tronador |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-11-619-2017 info:eu-repo/semantics/altIdentifier/url/https://www.the-cryosphere.net/11/619/2017/ http://hdl.handle.net/11336/64223 Ruiz, Lucas Ernesto; Léveillé Bourret, Étienne; Viale, Maximiliano; Pitte, Pedro Miguel; Masiokas, Mariano Hugo; Recent geodetic mass balance of Monte Tronador glaciers, northern Patagonian Andes; Copernicus Publications; The Cryosphere; 11; 1; 2-2017; 619-634 1994-0424 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.5194/tc-11-619-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
1 |
container_start_page |
619 |
op_container_end_page |
634 |
_version_ |
1779320858938966016 |