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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-8165

Paul, F; Haeberli, W (2008). Spatial variability of glacier elevation changes in the Swiss Alps obtained from two digital elevation models. Geophysical Research Letters, 35(21):L21502.

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Massive glacier thinning in the Alps during the past 20 years is documented by direct mass balance measurements on nine regularly observed glaciers. How representative this limited sample of glaciers is for the entire Alps, however, remained uncertain. The near-global digital terrain model from the SRTM enables a closer analysis of this question, which is of fundamental importance to assess overall glacier volume change. Here we present elevation changes from 1985 to 1999 for about 1050 glaciers in the Swiss Alps. The analysis reveals extreme thickness losses (>80 m) for flat/low-lying glacier tongues and a strong overall surface lowering. The mean cumulative mass balance of the nine glaciers with direct measurements (−10.8 m w.e.) agrees well with the mean change of the entire region from DEM differencing (−11 m w.e.) and can thus be considered to be representative. Mean thickness change of individual glaciers is correlated with their size, elevation, and exposure to solar irradiation. This implies that mass losses of large glaciers can be underestimated when they are directly inferred from values measured at much smaller glaciers.


67 citations in Web of Science®
80 citations in Scopus®
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19 downloads since deposited on 07 Jan 2009
11 downloads since 12 months

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Deposited On:07 Jan 2009 09:53
Last Modified:02 Jun 2016 08:17
Publisher:American Geophysical Union
Publisher DOI:10.1029/2008GL034718
Related URLs:https://biblio.unizh.ch/F/DPCAV821SQSMNPVPH7Y3SNDMK99JT6XPJ4MD5L7NEURDIEGXAI-18448?ssl_flag=Y&login_source=&func=find-b&find_code=WTI&request=%09Geophysical+Research+Letters&x=23&y=2

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