Decelerated mass loss of Hurd and Johnsons Glaciers, Livingston Island, Antarctic Peninsula

Navarro Valero, Francisco Jose and Jonsell, Ulf and Corcuera Labrado, Maria Isabel and Martín Español, Alba (2013). Decelerated mass loss of Hurd and Johnsons Glaciers, Livingston Island, Antarctic Peninsula. "Journal of Glaciology", v. 59 (n. 213); pp. 115-128. ISSN 0022-1430. https://doi.org/10.3189/2013JoG12J144.

Description

Title: Decelerated mass loss of Hurd and Johnsons Glaciers, Livingston Island, Antarctic Peninsula
Author/s:
  • Navarro Valero, Francisco Jose
  • Jonsell, Ulf
  • Corcuera Labrado, Maria Isabel
  • Martín Español, Alba
Item Type: Article
Título de Revista/Publicación: Journal of Glaciology
Date: March 2013
ISSN: 0022-1430
Volume: 59
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Matemática Aplicada a las Tecnologías de la Información [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A new 10 year surface mass balance (SMB) record of Hurd and Johnsons Glaciers, Livingston Island, Antarctica, is presented and compared with earlier estimates on the basis of local and regional meteorological conditions and trends.Since Johnsons is a tidewater glacier, we also include a calving flux calculation to estimate its total mass balance. The average annual SMB over the 10 year observation period 2002–11 is –0.15�0.10 m w.e. for Hurd Glacier and 0.05�0.10 m w.e. for Johnsons Glacier. Adding the calving losses to the latter results in a total mass balance of –0.09�0.10 m w.e. There has been a deceleration of the mass losses of these glaciers from 1957–2000 to 2002–11, which have nearly halved for both glaciers. We attribute this decrease in the mass losses to a combination of increased accumulation in the region and decreased melt. The increased accumulation is attributed to larger precipitation associated with the recent deepening of the circumpolar pressure trough, while the melt decrease is associated with lower summer surface temperatures during the past decade.

More information

Item ID: 19845
DC Identifier: http://oa.upm.es/19845/
OAI Identifier: oai:oa.upm.es:19845
DOI: 10.3189/2013JoG12J144
Deposited by: Memoria Investigacion
Deposited on: 21 Sep 2013 13:12
Last Modified: 21 Apr 2016 21:29
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