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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/126646
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:53:44Zoai: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:34982025-09-29 09:53:44.494CONICET 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 |
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1844613637987106816 |
score |
13.070432 |