Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields

Autores
Millan, R.; Rignot, E.; Rivera, A.; Martineau, V.; Mouginot, J.; Zamora, R.; Uribe, J.; Lenzano, María Gabriela; De Fleurian, B.; Li, X.; Gim, Y.; Kirchner, D.
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Northern and Southern Patagonian Icefields are the largest ice masses in the Southern Hemisphere outside Antarctica, but their ice volume and bed topography are poorly known. Here, we combine airborne gravity data collected in 2012 and 2016, with radar data from the Warm Ice Experiment Sounder and Centro de Estudios Científicos's to map bed elevation and ice thickness in great detail. We perform a 3-D inversion of the gravity data constrained by radar-derived thickness and fjord bathymetry to infer bed elevation at 500-m spacing, with a precision of about 60 m. We detect deep glacial valleys with ice thickness exceeding 1,400 m and sectors below sea level on the western branch of Glaciar Pio XI, Occidental, between San Rafael and Colonia, and near Fitz Roy. We calculate an ice volume of 4,756 ± 923 km3 for Northern Patagonia Icefield and Southern Patagonia Icefield, or 40 times the volume of glaciers in the European Alps.
Fil: Millan, R.. University of California at Irvine; Estados Unidos
Fil: Rignot, E.. University of California; Estados Unidos. Jet Propulsion Laboratory; Estados Unidos. Centro de Estudios Científicos; Chile
Fil: Rivera, A.. Centro de Estudios Científicos; Chile. Universidad de Chile; Chile
Fil: Martineau, V.. University of California; Estados Unidos
Fil: Mouginot, J.. University of California at Irvine; Estados Unidos
Fil: Zamora, R.. Universidad de Chile; Chile. Centro de Estudios Científicos; Chile
Fil: Uribe, J.. Centro de Estudios Científicos; Chile
Fil: Lenzano, María Gabriela. 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: De Fleurian, B.. University of Bergen; Noruega
Fil: Li, X.. University of California at Irvine; Estados Unidos
Fil: Gim, Y.. Jet Propulsion Laboratory; Estados Unidos
Fil: Kirchner, D.. University of Iowa; Estados Unidos
Materia
AIRBORNE GRAVITY
BEDROCK TOPOGRAPHY
ICE THICKNESS
ICE VOLUME
PATAGONIAN ICEFIELDS
RADAR DEPTH SOUNDER
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/126646
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/126646
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ice Thickness and Bed Elevation of the Northern and Southern Patagonian IcefieldsMillan, R.Rignot, E.Rivera, A.Martineau, V.Mouginot, J.Zamora, R.Uribe, J.Lenzano, María GabrielaDe Fleurian, B.Li, X.Gim, Y.Kirchner, D.AIRBORNE GRAVITYBEDROCK TOPOGRAPHYICE THICKNESSICE VOLUMEPATAGONIAN ICEFIELDSRADAR DEPTH SOUNDERhttps://purl.org/becyt/ford/2.11https://purl.org/becyt/ford/2The Northern and Southern Patagonian Icefields are the largest ice masses in the Southern Hemisphere outside Antarctica, but their ice volume and bed topography are poorly known. Here, we combine airborne gravity data collected in 2012 and 2016, with radar data from the Warm Ice Experiment Sounder and Centro de Estudios Científicos's to map bed elevation and ice thickness in great detail. We perform a 3-D inversion of the gravity data constrained by radar-derived thickness and fjord bathymetry to infer bed elevation at 500-m spacing, with a precision of about 60 m. We detect deep glacial valleys with ice thickness exceeding 1,400 m and sectors below sea level on the western branch of Glaciar Pio XI, Occidental, between San Rafael and Colonia, and near Fitz Roy. We calculate an ice volume of 4,756 ± 923 km3 for Northern Patagonia Icefield and Southern Patagonia Icefield, or 40 times the volume of glaciers in the European Alps.Fil: Millan, R.. University of California at Irvine; Estados UnidosFil: Rignot, E.. University of California; Estados Unidos. Jet Propulsion Laboratory; Estados Unidos. Centro de Estudios Científicos; ChileFil: Rivera, A.. Centro de Estudios Científicos; Chile. Universidad de Chile; ChileFil: Martineau, V.. University of California; Estados UnidosFil: Mouginot, J.. University of California at Irvine; Estados UnidosFil: Zamora, R.. Universidad de Chile; Chile. Centro de Estudios Científicos; ChileFil: Uribe, J.. Centro de Estudios Científicos; ChileFil: Lenzano, María Gabriela. 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; ArgentinaFil: De Fleurian, B.. University of Bergen; NoruegaFil: Li, X.. University of California at Irvine; Estados UnidosFil: Gim, Y.. Jet Propulsion Laboratory; Estados UnidosFil: Kirchner, D.. University of Iowa; Estados UnidosAmerican Geophysical Union2019-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/126646Millan, R.; Rignot, E.; Rivera, A.; Martineau, V.; Mouginot, J.; et al.; Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields; American Geophysical Union; Geophysical Research Letters; 46; 12; 6-2019; 6626-66350094-8276CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1029/2019GL082485info:eu-repo/semantics/altIdentifier/doi/10.1029/2019GL082485info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:48:38Zoai:ri.conicet.gov.ar:11336/126646instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:48:38.853CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields
title Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields
spellingShingle Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields
Millan, R.
AIRBORNE GRAVITY
BEDROCK TOPOGRAPHY
ICE THICKNESS
ICE VOLUME
PATAGONIAN ICEFIELDS
RADAR DEPTH SOUNDER
title_short Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields
title_full Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields
title_fullStr Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields
title_full_unstemmed Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields
title_sort Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields
dc.creator.none.fl_str_mv Millan, R.
Rignot, E.
Rivera, A.
Martineau, V.
Mouginot, J.
Zamora, R.
Uribe, J.
Lenzano, María Gabriela
De Fleurian, B.
Li, X.
Gim, Y.
Kirchner, D.
author Millan, R.
author_facet Millan, R.
Rignot, E.
Rivera, A.
Martineau, V.
Mouginot, J.
Zamora, R.
Uribe, J.
Lenzano, María Gabriela
De Fleurian, B.
Li, X.
Gim, Y.
Kirchner, D.
author_role author
author2 Rignot, E.
Rivera, A.
Martineau, V.
Mouginot, J.
Zamora, R.
Uribe, J.
Lenzano, María Gabriela
De Fleurian, B.
Li, X.
Gim, Y.
Kirchner, D.
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv AIRBORNE GRAVITY
BEDROCK TOPOGRAPHY
ICE THICKNESS
ICE VOLUME
PATAGONIAN ICEFIELDS
RADAR DEPTH SOUNDER
topic AIRBORNE GRAVITY
BEDROCK TOPOGRAPHY
ICE THICKNESS
ICE VOLUME
PATAGONIAN ICEFIELDS
RADAR DEPTH SOUNDER
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The Northern and Southern Patagonian Icefields are the largest ice masses in the Southern Hemisphere outside Antarctica, but their ice volume and bed topography are poorly known. Here, we combine airborne gravity data collected in 2012 and 2016, with radar data from the Warm Ice Experiment Sounder and Centro de Estudios Científicos's to map bed elevation and ice thickness in great detail. We perform a 3-D inversion of the gravity data constrained by radar-derived thickness and fjord bathymetry to infer bed elevation at 500-m spacing, with a precision of about 60 m. We detect deep glacial valleys with ice thickness exceeding 1,400 m and sectors below sea level on the western branch of Glaciar Pio XI, Occidental, between San Rafael and Colonia, and near Fitz Roy. We calculate an ice volume of 4,756 ± 923 km3 for Northern Patagonia Icefield and Southern Patagonia Icefield, or 40 times the volume of glaciers in the European Alps.
Fil: Millan, R.. University of California at Irvine; Estados Unidos
Fil: Rignot, E.. University of California; Estados Unidos. Jet Propulsion Laboratory; Estados Unidos. Centro de Estudios Científicos; Chile
Fil: Rivera, A.. Centro de Estudios Científicos; Chile. Universidad de Chile; Chile
Fil: Martineau, V.. University of California; Estados Unidos
Fil: Mouginot, J.. University of California at Irvine; Estados Unidos
Fil: Zamora, R.. Universidad de Chile; Chile. Centro de Estudios Científicos; Chile
Fil: Uribe, J.. Centro de Estudios Científicos; Chile
Fil: Lenzano, María Gabriela. 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: De Fleurian, B.. University of Bergen; Noruega
Fil: Li, X.. University of California at Irvine; Estados Unidos
Fil: Gim, Y.. Jet Propulsion Laboratory; Estados Unidos
Fil: Kirchner, D.. University of Iowa; Estados Unidos
description The Northern and Southern Patagonian Icefields are the largest ice masses in the Southern Hemisphere outside Antarctica, but their ice volume and bed topography are poorly known. Here, we combine airborne gravity data collected in 2012 and 2016, with radar data from the Warm Ice Experiment Sounder and Centro de Estudios Científicos's to map bed elevation and ice thickness in great detail. We perform a 3-D inversion of the gravity data constrained by radar-derived thickness and fjord bathymetry to infer bed elevation at 500-m spacing, with a precision of about 60 m. We detect deep glacial valleys with ice thickness exceeding 1,400 m and sectors below sea level on the western branch of Glaciar Pio XI, Occidental, between San Rafael and Colonia, and near Fitz Roy. We calculate an ice volume of 4,756 ± 923 km3 for Northern Patagonia Icefield and Southern Patagonia Icefield, or 40 times the volume of glaciers in the European Alps.
publishDate 2019
dc.date.none.fl_str_mv 2019-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/126646
Millan, R.; Rignot, E.; Rivera, A.; Martineau, V.; Mouginot, J.; et al.; Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields; American Geophysical Union; Geophysical Research Letters; 46; 12; 6-2019; 6626-6635
0094-8276
CONICET Digital
CONICET
url http://hdl.handle.net/11336/126646
identifier_str_mv Millan, R.; Rignot, E.; Rivera, A.; Martineau, V.; Mouginot, J.; et al.; Ice Thickness and Bed Elevation of the Northern and Southern Patagonian Icefields; American Geophysical Union; Geophysical Research Letters; 46; 12; 6-2019; 6626-6635
0094-8276
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1029/2019GL082485
info:eu-repo/semantics/altIdentifier/doi/10.1029/2019GL082485
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083007293685760
score 13.22299

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