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| Titel |
Glacier changes in the Pascua-Lama region, Chilean Andes (29° S): recent mass balance and 50 yr surface area variations |
| VerfasserIn |
A. Rabatel, H. Castebrunet, V. Favier, L. Nicholson, C. Kinnard |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1994-0416
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| Digitales Dokument |
URL |
| Erschienen |
In: The Cryosphere ; 5, no. 4 ; Nr. 5, no. 4 (2011-11-22), S.1029-1041 |
| Datensatznummer |
250002757
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| Publikation (Nr.) |
 copernicus.org/tc-5-1029-2011.pdf |
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| Zusammenfassung |
| Since 2003, a monitoring program has been conducted on several glaciers and
glacierets in the Pascua-Lama region of the Chilean Andes (29° S/70° W; 5000 m a.s.l.), permitting the
study of glaciological processes on ice bodies in a subtropical, arid, high-elevation area where no
measurements were previously available. In this paper we present: (1) six years of glaciological surface
mass balance measurements from four ice bodies in the area, including a discussion of the nature of the
studied glaciers and glacierets and characterization of the importance of winter mass balance to annual
mass balance variability; and (2) changes in surface area of twenty ice bodies in the region since 1955,
reconstructed from aerial photographs and satellite images, which shows that the total glaciated surface
area reduced by ~29% between 1955 and 2007, and that the rate of surface area shrinkage increased in
the late 20th century. Based on these datasets we present a first interpretation of glacier changes in
relation with climatic parameters at both local and regional scales. |
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