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

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 system...

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Detalles Bibliográficos
Autores principales: Richter, Andreas, Groh, Andreas, Horwath, Martin, Ivins, Erik, Marderwald, Eric Rodolfo, Hormaechea, José Luis, Perdomo, Raúl Aníbal, Dietrich, Reinhard
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Astronómicas
Ice mass
Satellite gravimetry
Patagonia
GRACE
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125385
https://www.mdpi.com/2072-4292/11/8/909
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125385
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Ice mass
Satellite gravimetry
Patagonia
GRACE
spellingShingle Ciencias Astronómicas
Ice mass
Satellite gravimetry
Patagonia
GRACE
Richter, Andreas
Groh, Andreas
Horwath, Martin
Ivins, Erik
Marderwald, Eric Rodolfo
Hormaechea, José Luis
Perdomo, Raúl Aníbal
Dietrich, Reinhard
The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017
topic_facet Ciencias Astronómicas
Ice mass
Satellite gravimetry
Patagonia
GRACE
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.
format Articulo
Articulo
author Richter, Andreas
Groh, Andreas
Horwath, Martin
Ivins, Erik
Marderwald, Eric Rodolfo
Hormaechea, José Luis
Perdomo, Raúl Aníbal
Dietrich, Reinhard
author_facet Richter, Andreas
Groh, Andreas
Horwath, Martin
Ivins, Erik
Marderwald, Eric Rodolfo
Hormaechea, José Luis
Perdomo, Raúl Aníbal
Dietrich, Reinhard
author_sort Richter, Andreas
title The Rapid and Steady Mass Loss of the Patagonian Icefields throughout the GRACE Era: 2002–2017
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 rapid and steady mass loss of the patagonian icefields throughout the grace era: 2002–2017
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/125385
https://www.mdpi.com/2072-4292/11/8/909
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