Effects of recent cooling in the Antarctic Peninsula on snow density and surface mass balance

Recio Blitz, Cayetana del Pilar and Navarro Valero, Francisco Jose and Otero García, Jaime and Lapazaran Izargain, Javier Jesús and González Herrero, Sergi (2018). Effects of recent cooling in the Antarctic Peninsula on snow density and surface mass balance. "Polish Polar Research", v. 39 (n. 4); pp. 457-480. ISSN 0138-0338. https://doi.org/10.24425/118756.

Description

Title: Effects of recent cooling in the Antarctic Peninsula on snow density and surface mass balance
Author/s:
  • Recio Blitz, Cayetana del Pilar
  • Navarro Valero, Francisco Jose
  • Otero García, Jaime
  • Lapazaran Izargain, Javier Jesús
  • González Herrero, Sergi
Item Type: Article
Título de Revista/Publicación: Polish Polar Research
Date: 2018
ISSN: 0138-0338
Volume: 39
Subjects:
Freetext Keywords: Antarctica, Livingston Island, glacier snow cover, compaction, air temperature
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Matemática Aplicada a las Tecnologías de la Información y las Comunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The Antarctic Peninsula region has experienced a recent cooling for about 15 years since the beginning of the 21st century. In Livingston Island, this cooling has been of 0.8°C over the 12-yr period 2004–2016, and of 1.0°C for the summer average temperatures over the same period. In this paper, we analyse whether this observed cooling has implied a significant change in the density of the snowpack covering Hurd and Johnsons glaciers, and whether such a density change has had, by itself, a noticeable impact in the calculated surface mass balance. Our results indicate a decrease in the snow density by 22 kg m-3 over the study period. The density changes are shown to be correlated with the summer temperature changes. We show that this observed decrease in density does not have an appreciable effect on the calculated surface mass balance, as the corresponding changes are below the usual error range of the surface mass balance estimates. This relieves us from the need of detailed and time-consuming snow density measurements at every mass-balance campaign.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainCTM2014-56473-RUnspecifiedUnspecifiedDescarga de masa de los glaciares al océano: mejora de las estimaciones actuales y predicción de aportaciones futuras en un clima cambiante
Government of SpainCTM2017-84441-RUnspecifiedUnspecifiedInteracción termomecánica glaciar-océano: estimación de las pérdidas de masa glaciar por ablación frontal y su fraccionamiento en descarga de icebergs y fusión submarina

More information

Item ID: 54863
DC Identifier: http://oa.upm.es/54863/
OAI Identifier: oai:oa.upm.es:54863
DOI: 10.24425/118756
Official URL: https://www.researchgate.net/publication/329810683_Effects_of_recent_cooling_in_the_antarctic_peninsula_on_snow_density_and_surface_mass_balance
Deposited by: Memoria Investigacion
Deposited on: 06 May 2019 16:27
Last Modified: 06 May 2019 16:27
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