Belvedere glacier. Monte Rosa, Italian Alps : tongue thickness and volume variations in the second half of the 20th century
In studying the response of alpine glaciers to climate warming, the study of debris-covered glaciers is important in order to demonstrate that a negative feedback exists in the temperature-ablation relationship that is introduced by the increase in debris cover. In this paper, variations in the Belv...
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ftunivmilanoair:oai:air.unimi.it:2434/14815 2024-04-21T07:53:01+00:00 Belvedere glacier. Monte Rosa, Italian Alps : tongue thickness and volume variations in the second half of the 20th century G. Diolaiuti C. D'Agata C. Smiraglia G. Diolaiuti C. D'Agata C. Smiraglia 2003 http://hdl.handle.net/2434/14815 https://doi.org/10.1657/1523-0430(2003)035[0255:BGMRIA]2.0.CO;2 eng eng University of Colorado info:eu-repo/semantics/altIdentifier/wos/WOS:000183952800015 volume:35 issue:2 firstpage:255 lastpage:263 journal:ARCTIC ANTARCTIC AND ALPINE RESEARCH http://hdl.handle.net/2434/14815 doi:10.1657/1523-0430(2003)035[0255:BGMRIA]2.0.CO;2 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0141814647 Settore GEO/04 - Geografia Fisica e Geomorfologia info:eu-repo/semantics/article 2003 ftunivmilanoair https://doi.org/10.1657/1523-0430(2003)035[0255:BGMRIA]2.0.CO;2 2024-03-27T16:24:16Z In studying the response of alpine glaciers to climate warming, the study of debris-covered glaciers is important in order to demonstrate that a negative feedback exists in the temperature-ablation relationship that is introduced by the increase in debris cover. In this paper, variations in the Belvedere Glacier tongue volume and thickness were quantified through a comparison of large-scale maps for 1957 and 1991. A volume increase of 22.7 million m 3 was revealed, and there was a mean increase of 15 m in thickness. Thickening was greatest above 1830 m, and thinning occurred at the glacier front (1830-1770 m). The glacier terminus advanced only slightly. This particular evolution of the Belvedere tongue has been attributed to positive balances of the glacier created by favorable climatic conditions (increase in winter precipitation between the early 1970s and mid-1980s and lower summer temperatures in the 1960s and 1970s). After the mid-1980s, reduced precipitation and a simultaneous increase in temperatures led to a slight retreat of the glacier front in the early 1990s. However, these climatic conditions were not sufficient to bring about a significant reduction of the thickness of the glacier, partly owing to the debris cover, which reduced the role of ablation. Article in Journal/Newspaper Antarctic and Alpine Research The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
institution |
Open Polar |
collection |
The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
op_collection_id |
ftunivmilanoair |
language |
English |
topic |
Settore GEO/04 - Geografia Fisica e Geomorfologia |
spellingShingle |
Settore GEO/04 - Geografia Fisica e Geomorfologia G. Diolaiuti C. D'Agata C. Smiraglia Belvedere glacier. Monte Rosa, Italian Alps : tongue thickness and volume variations in the second half of the 20th century |
topic_facet |
Settore GEO/04 - Geografia Fisica e Geomorfologia |
description |
In studying the response of alpine glaciers to climate warming, the study of debris-covered glaciers is important in order to demonstrate that a negative feedback exists in the temperature-ablation relationship that is introduced by the increase in debris cover. In this paper, variations in the Belvedere Glacier tongue volume and thickness were quantified through a comparison of large-scale maps for 1957 and 1991. A volume increase of 22.7 million m 3 was revealed, and there was a mean increase of 15 m in thickness. Thickening was greatest above 1830 m, and thinning occurred at the glacier front (1830-1770 m). The glacier terminus advanced only slightly. This particular evolution of the Belvedere tongue has been attributed to positive balances of the glacier created by favorable climatic conditions (increase in winter precipitation between the early 1970s and mid-1980s and lower summer temperatures in the 1960s and 1970s). After the mid-1980s, reduced precipitation and a simultaneous increase in temperatures led to a slight retreat of the glacier front in the early 1990s. However, these climatic conditions were not sufficient to bring about a significant reduction of the thickness of the glacier, partly owing to the debris cover, which reduced the role of ablation. |
author2 |
G. Diolaiuti C. D'Agata C. Smiraglia |
format |
Article in Journal/Newspaper |
author |
G. Diolaiuti C. D'Agata C. Smiraglia |
author_facet |
G. Diolaiuti C. D'Agata C. Smiraglia |
author_sort |
G. Diolaiuti |
title |
Belvedere glacier. Monte Rosa, Italian Alps : tongue thickness and volume variations in the second half of the 20th century |
title_short |
Belvedere glacier. Monte Rosa, Italian Alps : tongue thickness and volume variations in the second half of the 20th century |
title_full |
Belvedere glacier. Monte Rosa, Italian Alps : tongue thickness and volume variations in the second half of the 20th century |
title_fullStr |
Belvedere glacier. Monte Rosa, Italian Alps : tongue thickness and volume variations in the second half of the 20th century |
title_full_unstemmed |
Belvedere glacier. Monte Rosa, Italian Alps : tongue thickness and volume variations in the second half of the 20th century |
title_sort |
belvedere glacier. monte rosa, italian alps : tongue thickness and volume variations in the second half of the 20th century |
publisher |
University of Colorado |
publishDate |
2003 |
url |
http://hdl.handle.net/2434/14815 https://doi.org/10.1657/1523-0430(2003)035[0255:BGMRIA]2.0.CO;2 |
genre |
Antarctic and Alpine Research |
genre_facet |
Antarctic and Alpine Research |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000183952800015 volume:35 issue:2 firstpage:255 lastpage:263 journal:ARCTIC ANTARCTIC AND ALPINE RESEARCH http://hdl.handle.net/2434/14815 doi:10.1657/1523-0430(2003)035[0255:BGMRIA]2.0.CO;2 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0141814647 |
op_doi |
https://doi.org/10.1657/1523-0430(2003)035[0255:BGMRIA]2.0.CO;2 |
_version_ |
1796936289876967424 |