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dc.contributor.author
Saavedra, Felipe
dc.contributor.author
Cortés, Gonzalo
dc.contributor.author
Viale, Maximiliano
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dc.contributor.author
Margulis, Steven
dc.contributor.author
McPhee, James
dc.date.available
2021-09-30T12:55:03Z
dc.date.issued
2020-07
dc.identifier.citation
Saavedra, Felipe; Cortés, Gonzalo; Viale, Maximiliano; Margulis, Steven; McPhee, James; Atmospheric rivers contribution to the snow accumulation over the southern Andes (26.5° S–37.5° S); Frontiers Media; Frontiers in Earth Science; 8; 7-2020; 1-11
dc.identifier.issn
2296-6463
dc.identifier.uri
http://hdl.handle.net/11336/142039
dc.description.abstract
This paper quantifies the climatological contribution of atmospheric rivers (ARs) to annual snow accumulation in the Andes Cordillera between 26.5° S and 36.5° S. An AR identification algorithm, and a high-resolution (0.01°) snow reanalysis dataset, both especially developed for this mountainous region, are used for this quantification over the 1984–2014 period. Results show that AR snowfall events explain approximately 50% of the annual snow accumulation over the study area, and are 2.5 times more intense than non-AR snowfall events. Due to orographic precipitation enhancement on the western slopes and a prominent rain shadow effect on the eastern slopes, annual snow accumulation and AR storms contribution to this accumulation are, on average, 7 and 12 times larger on western than on eastern slopes of the mountain range, respectively. Areas with lower peak elevations see more spillover snowfall over the eastern slopes of the mountain range, especially south of 35° S. Analysis of teleconnections with El Niño Southern Oscillation shows a reduction in the AR frequency across the study area during La Niña episodes and, consequently, a lower contribution to snow accumulation. Conversely, weak and moderate El Niño episodes show an increase in AR frequency, and consequently more snowfall.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Frontiers Media
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
ANDES CORDILLERA
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ATMOSPHERIC RIVERS
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EL NIÑO
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ENSO
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RAIN SHADOW
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SNOW ACCUMULATION
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SOUTH AMERICA
dc.subject.classification
Meteorología y Ciencias Atmosféricas
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Atmospheric rivers contribution to the snow accumulation over the southern Andes (26.5° S–37.5° S)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-06T19:58:25Z
dc.journal.volume
8
dc.journal.pagination
1-11
dc.journal.pais
Suiza
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dc.description.fil
Fil: Saavedra, Felipe. Universidad de Chile; Chile
dc.description.fil
Fil: Cortés, Gonzalo. Centro Tecnológico del Agua; Chile
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Fil: Viale, Maximiliano. 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
dc.description.fil
Fil: Margulis, Steven. University of California at Los Angeles; Estados Unidos
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Fil: McPhee, James. Universidad de Chile; Chile
dc.journal.title
Frontiers in Earth Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/article/10.3389/feart.2020.00261/full
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3389/feart.2020.00261
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