The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017

Autores
Richter, Andreas; Groh, Andreas; Horwath, Martin; Ivins, Erik; Marderwald, Eric Rodolfo; Hormaechea, José Luis; Perdomo, Raúl Aníbal; Dietrich, Reinhard
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We use the complete gravity recovery and climate experiment (GRACE) Level-2 monthly time series to derive the ice mass changes of the Patagonian Icefields (Southern Andes). The glacial isostatic adjustment is accounted for by a regional model that is constrained by global navigation satellite systems (GNSS) uplift observations. Further corrections are applied concerning the effect of mass variations in the ocean, in the continental water storage, and of the Antarctic ice sheet. The 161 monthly GRACE gravity field solutions are inverted in the spatial domain through the adjustment of scaling factors applied to a-priori ice mass change patterns based on published remote sensing results for the Southern and Northern Patagonian Icefields, respectively. We infer an ice mass change rate of −24.4 ± 4.7 Gt/a for the Patagonian Icefields between April 2002 and June 2017, which corresponds to a contribution to the eustatic sea level rise of 0.067 ± 0.013 mm/a. Our time series of monthly ice mass changes reveals no indication for an acceleration in ice mass loss. We find indications that the Northern Patagonian Icefield contributes more to the integral ice loss than previously assumed.
Laboratorio de Meteorología espacial, Atmósfera terrestre, Geodesia, Geodinámica, diseño de Instrumental y Astrometría
Materia
Ciencias Astronómicas
Ice mass
Satellite gravimetry
Patagonia
GRACE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/125385
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/125385
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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017Richter, AndreasGroh, AndreasHorwath, MartinIvins, ErikMarderwald, Eric RodolfoHormaechea, José LuisPerdomo, Raúl AníbalDietrich, ReinhardCiencias AstronómicasIce massSatellite gravimetryPatagoniaGRACEWe use the complete gravity recovery and climate experiment (GRACE) Level-2 monthly time series to derive the ice mass changes of the Patagonian Icefields (Southern Andes). The glacial isostatic adjustment is accounted for by a regional model that is constrained by global navigation satellite systems (GNSS) uplift observations. Further corrections are applied concerning the effect of mass variations in the ocean, in the continental water storage, and of the Antarctic ice sheet. The 161 monthly GRACE gravity field solutions are inverted in the spatial domain through the adjustment of scaling factors applied to a-priori ice mass change patterns based on published remote sensing results for the Southern and Northern Patagonian Icefields, respectively. We infer an ice mass change rate of −24.4 ± 4.7 Gt/a for the Patagonian Icefields between April 2002 and June 2017, which corresponds to a contribution to the eustatic sea level rise of 0.067 ± 0.013 mm/a. Our time series of monthly ice mass changes reveals no indication for an acceleration in ice mass loss. We find indications that the Northern Patagonian Icefield contributes more to the integral ice loss than previously assumed.Laboratorio de Meteorología espacial, Atmósfera terrestre, Geodesia, Geodinámica, diseño de Instrumental y Astrometría2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/125385enginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2072-4292/11/8/909info:eu-repo/semantics/altIdentifier/issn/2072-4292info:eu-repo/semantics/altIdentifier/doi/10.3390/rs11080909info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:21:56Zoai:sedici.unlp.edu.ar:10915/125385Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:21:56.482SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017
title The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017
spellingShingle The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017
Richter, Andreas
Ciencias Astronómicas
Ice mass
Satellite gravimetry
Patagonia
GRACE
title_short The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017
title_full The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017
title_fullStr The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017
title_full_unstemmed The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017
title_sort The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017
dc.creator.none.fl_str_mv Richter, Andreas
Groh, Andreas
Horwath, Martin
Ivins, Erik
Marderwald, Eric Rodolfo
Hormaechea, José Luis
Perdomo, Raúl Aníbal
Dietrich, Reinhard
author Richter, Andreas
author_facet Richter, Andreas
Groh, Andreas
Horwath, Martin
Ivins, Erik
Marderwald, Eric Rodolfo
Hormaechea, José Luis
Perdomo, Raúl Aníbal
Dietrich, Reinhard
author_role author
author2 Groh, Andreas
Horwath, Martin
Ivins, Erik
Marderwald, Eric Rodolfo
Hormaechea, José Luis
Perdomo, Raúl Aníbal
Dietrich, Reinhard
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Ice mass
Satellite gravimetry
Patagonia
GRACE
topic Ciencias Astronómicas
Ice mass
Satellite gravimetry
Patagonia
GRACE
dc.description.none.fl_txt_mv We use the complete gravity recovery and climate experiment (GRACE) Level-2 monthly time series to derive the ice mass changes of the Patagonian Icefields (Southern Andes). The glacial isostatic adjustment is accounted for by a regional model that is constrained by global navigation satellite systems (GNSS) uplift observations. Further corrections are applied concerning the effect of mass variations in the ocean, in the continental water storage, and of the Antarctic ice sheet. The 161 monthly GRACE gravity field solutions are inverted in the spatial domain through the adjustment of scaling factors applied to a-priori ice mass change patterns based on published remote sensing results for the Southern and Northern Patagonian Icefields, respectively. We infer an ice mass change rate of −24.4 ± 4.7 Gt/a for the Patagonian Icefields between April 2002 and June 2017, which corresponds to a contribution to the eustatic sea level rise of 0.067 ± 0.013 mm/a. Our time series of monthly ice mass changes reveals no indication for an acceleration in ice mass loss. We find indications that the Northern Patagonian Icefield contributes more to the integral ice loss than previously assumed.
Laboratorio de Meteorología espacial, Atmósfera terrestre, Geodesia, Geodinámica, diseño de Instrumental y Astrometría
description We use the complete gravity recovery and climate experiment (GRACE) Level-2 monthly time series to derive the ice mass changes of the Patagonian Icefields (Southern Andes). The glacial isostatic adjustment is accounted for by a regional model that is constrained by global navigation satellite systems (GNSS) uplift observations. Further corrections are applied concerning the effect of mass variations in the ocean, in the continental water storage, and of the Antarctic ice sheet. The 161 monthly GRACE gravity field solutions are inverted in the spatial domain through the adjustment of scaling factors applied to a-priori ice mass change patterns based on published remote sensing results for the Southern and Northern Patagonian Icefields, respectively. We infer an ice mass change rate of −24.4 ± 4.7 Gt/a for the Patagonian Icefields between April 2002 and June 2017, which corresponds to a contribution to the eustatic sea level rise of 0.067 ± 0.013 mm/a. Our time series of monthly ice mass changes reveals no indication for an acceleration in ice mass loss. We find indications that the Northern Patagonian Icefield contributes more to the integral ice loss than previously assumed.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/125385
url http://sedici.unlp.edu.ar/handle/10915/125385
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2072-4292/11/8/909
info:eu-repo/semantics/altIdentifier/issn/2072-4292
info:eu-repo/semantics/altIdentifier/doi/10.3390/rs11080909
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.22299

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