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Mass-Budget Anomali...
Mass-Budget Anomalies and Geometry Signals of Three Austrian Glaciers
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- Charalampidis, Charalampos (författare)
- Bavarian Acad Sci & Humanities, Munich, Germany.
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- Fischer, Andrea (författare)
- Austrian Acad Sci, Inst Interdisciplinary Mt Res, Innsbruck, Austria.
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- Kuhn, Michael (författare)
- Univ Innsbruck, Inst Atmospher & Cryospher Sci, Innsbruck, Austria.
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- Lambrecht, Astrid (författare)
- Bavarian Acad Sci & Humanities, Munich, Germany.
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- Mayer, Christoph (författare)
- Bavarian Acad Sci & Humanities, Munich, Germany.
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- Thomaidis, Konstantinos (författare)
- Uppsala universitet,Mineralogi, petrologi och tektonik,Luft-, vatten- och landskapslära
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- Weber, Markus (författare)
- Tech Univ Munich, Chair Photogrammetry & Remote Sensing, Munich, Germany.
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Bavarian Acad Sci & Humanities, Munich, Germany Austrian Acad Sci, Inst Interdisciplinary Mt Res, Innsbruck, Austria. (creator_code:org_t)
- 2018-12-17
- 2018
- Engelska.
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Ingår i: Frontiers in Earth Science. - : FRONTIERS MEDIA SA. - 2296-6463. ; 6
- Relaterad länk:
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https://uu.diva-port... (primary) (Raw object)
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https://www.frontier...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Glacier mass-budget monitoring documents climate fluctuations, provides context for observed glacier-geometry changes, and can provide information on the glaciers' states. We examine the mass-budget series and available geometries of three well-documented glaciers located in the same catchment area less than 10 km from one another in the Austrian Otztal Alps. The altitudinal profiles of the 1981-2010 average specific mass budgets of each glacier serve as climatic reference. We apply these reference mass-budget profiles on all available glacier geometries, thereby retrieving for each glacier reference-climate mass budgets that reveal in a discrete way each glacier's geometric adjustment over time and its impact on mass loss; interpolation of the reference-climate mass budgets over the 1981-2010 period provides the glaciers' geometry signals. The geometric mass-budget anomalies derived with respect to these geometry signals indicate decreasing mass budgets over the 1981-2010 period by 0.020 m water equivalent (w.e.) a(-2), or 31% additional mass loss compared to the centered anomalies derived with respect to the 1981-2010 averages of the conventional mass-budget series. Reference-climate mass budgets with respect to 1981-2010 of older geometries highlight Hintereisferner's adapting geometry by almost continuous retreat since 1850. Further retreat is inevitable as Hintereisferner is the furthest from a steady state amongst the three glaciers. The relatively small Kesselwandferner has been also mostly retreating, while briefly advancing in response to short-term climatic trends. In a stable 1981-2010 climate, Kesselwandferner would relatively quickly reach a steady state. Vernagtferner's geometry since 1979 favors mass loss by thinning, primarily due to extended surge-related mass losses since 1845; this inability to retreat has led to - and will further - Vernagtferner's disintegration.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Nyckelord
- mass-budget anomalies
- geometry change
- geometry signal
- climate forcing
- glacier state
- European Alps
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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