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Implications for the dynamic health of a glacier from comparison of conventional and reference-surface balances
University of Alaska.
University of Montana.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.
2009 (English)In: Annals of Glaciology, ISSN 0260-3055, E-ISSN 1727-5644, Vol. 50, no 50, 25-30 p.Article in journal (Refereed) Published
Abstract [en]

Conventional and reference-surface mass-balance data from Gulkana and Wolverine Glaciers, Alaska, USA, are used to address the questions of how rapidly these glaciers are adjusting (or 'responding') to climate, whether their responses are stable, and whether the glaciers are likely to survive in today's climate. Instability means that a glacier will eventually vanish, or at least become greatly reduced in volume, if the climate stabilizes at its present state. A simple non-linear theory of response is presented for the analysis. The response of Gulkana Glacier is characterized by a timescale of several decades, but its stability and therefore its survival in today's climate are uncertain. Wolverine seems to be responding to climate more slowly, on the timescale of one to several centuries. Its stability is also uncertain, but a slower response time would make it more susceptible to climate changes.

Place, publisher, year, edition, pages
2009. Vol. 50, no 50, 25-30 p.
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:uu:diva-119242DOI: 10.3189/172756409787769654ISI: 000279990100005OAI: oai:DiVA.org:uu-119242DiVA: diva2:299889
Available from: 2010-02-24 Created: 2010-02-24 Last updated: 2010-12-09Bibliographically approved

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