Investigating surface movements of debris-covered Miage glacier, Western Italian Alps, using dendroglaciological analysis
Dendroglaciological analysis of supraglacial trees represents an example of applied dendrogeornorphological methods in reconstructing glacier variations. Supraglacial trees react to glacier ice and debris movement, assuming typical shapes with modified radial growth. In this paper, based on tree-rin...
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International Glaciological Society
2007
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Online Access: | http://hdl.handle.net/2434/37990 https://doi.org/10.3189/172756507781833839 |
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ftunivmilanoair:oai:air.unimi.it:2434/37990 2024-02-11T10:04:04+01:00 Investigating surface movements of debris-covered Miage glacier, Western Italian Alps, using dendroglaciological analysis M. Pelfini M. Santilli G. Leonelli M. Bozzoni M. Pelfini M. Santilli G. Leonelli M. Bozzoni 2007 http://hdl.handle.net/2434/37990 https://doi.org/10.3189/172756507781833839 eng eng International Glaciological Society info:eu-repo/semantics/altIdentifier/wos/WOS:000246007900013 volume:53 issue:180 firstpage:141 lastpage:152 journal:JOURNAL OF GLACIOLOGY http://hdl.handle.net/2434/37990 doi:10.3189/172756507781833839 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-34247261658 tree-ring growth larix-decidua ice-age Mont-Blanc fluctuations climate Canada Settore GEO/04 - Geografia Fisica e Geomorfologia info:eu-repo/semantics/article 2007 ftunivmilanoair https://doi.org/10.3189/172756507781833839 2024-01-16T23:17:23Z Dendroglaciological analysis of supraglacial trees represents an example of applied dendrogeornorphological methods in reconstructing glacier variations. Supraglacial trees react to glacier ice and debris movement, assuming typical shapes with modified radial growth. In this paper, based on tree-ring analysis of Larix decidua Mill., we investigate the relationship between the distribution and growth of trees located on the most famous and representative debris-covered glacier in the Italian Alps (Miage glacier, Valle d'Aosta) and the superficial movements of ice and debris in the lower part of the tongue. Different growth anomalies (e.g. pointer years, compression wood, abrupt growth changes) were identified and dated. Three reference tree-ring chronologies based on undisturbed larches growing outside the glacier were constructed for comparison with tree-ring data from supraglacial trees. The oldest sampled trees colonized the glacier surface just before 1960. The simultaneous presence of different disturbance indicators occurred mainly between 1984 and 1990 on the southern lobe and during the period 1989-93 on the northern glacier lobe. These results fit with glaciological data documenting volume and surface-level variations in the same period. Article in Journal/Newspaper glacier* The University of Milan: Archivio Istituzionale della Ricerca (AIR) Canada Mont Blanc ENVELOPE(69.468,69.468,-49.461,-49.461) Journal of Glaciology 53 180 141 152 |
institution |
Open Polar |
collection |
The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
op_collection_id |
ftunivmilanoair |
language |
English |
topic |
tree-ring growth larix-decidua ice-age Mont-Blanc fluctuations climate Canada Settore GEO/04 - Geografia Fisica e Geomorfologia |
spellingShingle |
tree-ring growth larix-decidua ice-age Mont-Blanc fluctuations climate Canada Settore GEO/04 - Geografia Fisica e Geomorfologia M. Pelfini M. Santilli G. Leonelli M. Bozzoni Investigating surface movements of debris-covered Miage glacier, Western Italian Alps, using dendroglaciological analysis |
topic_facet |
tree-ring growth larix-decidua ice-age Mont-Blanc fluctuations climate Canada Settore GEO/04 - Geografia Fisica e Geomorfologia |
description |
Dendroglaciological analysis of supraglacial trees represents an example of applied dendrogeornorphological methods in reconstructing glacier variations. Supraglacial trees react to glacier ice and debris movement, assuming typical shapes with modified radial growth. In this paper, based on tree-ring analysis of Larix decidua Mill., we investigate the relationship between the distribution and growth of trees located on the most famous and representative debris-covered glacier in the Italian Alps (Miage glacier, Valle d'Aosta) and the superficial movements of ice and debris in the lower part of the tongue. Different growth anomalies (e.g. pointer years, compression wood, abrupt growth changes) were identified and dated. Three reference tree-ring chronologies based on undisturbed larches growing outside the glacier were constructed for comparison with tree-ring data from supraglacial trees. The oldest sampled trees colonized the glacier surface just before 1960. The simultaneous presence of different disturbance indicators occurred mainly between 1984 and 1990 on the southern lobe and during the period 1989-93 on the northern glacier lobe. These results fit with glaciological data documenting volume and surface-level variations in the same period. |
author2 |
M. Pelfini M. Santilli G. Leonelli M. Bozzoni |
format |
Article in Journal/Newspaper |
author |
M. Pelfini M. Santilli G. Leonelli M. Bozzoni |
author_facet |
M. Pelfini M. Santilli G. Leonelli M. Bozzoni |
author_sort |
M. Pelfini |
title |
Investigating surface movements of debris-covered Miage glacier, Western Italian Alps, using dendroglaciological analysis |
title_short |
Investigating surface movements of debris-covered Miage glacier, Western Italian Alps, using dendroglaciological analysis |
title_full |
Investigating surface movements of debris-covered Miage glacier, Western Italian Alps, using dendroglaciological analysis |
title_fullStr |
Investigating surface movements of debris-covered Miage glacier, Western Italian Alps, using dendroglaciological analysis |
title_full_unstemmed |
Investigating surface movements of debris-covered Miage glacier, Western Italian Alps, using dendroglaciological analysis |
title_sort |
investigating surface movements of debris-covered miage glacier, western italian alps, using dendroglaciological analysis |
publisher |
International Glaciological Society |
publishDate |
2007 |
url |
http://hdl.handle.net/2434/37990 https://doi.org/10.3189/172756507781833839 |
long_lat |
ENVELOPE(69.468,69.468,-49.461,-49.461) |
geographic |
Canada Mont Blanc |
geographic_facet |
Canada Mont Blanc |
genre |
glacier* |
genre_facet |
glacier* |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000246007900013 volume:53 issue:180 firstpage:141 lastpage:152 journal:JOURNAL OF GLACIOLOGY http://hdl.handle.net/2434/37990 doi:10.3189/172756507781833839 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-34247261658 |
op_doi |
https://doi.org/10.3189/172756507781833839 |
container_title |
Journal of Glaciology |
container_volume |
53 |
container_issue |
180 |
container_start_page |
141 |
op_container_end_page |
152 |
_version_ |
1790600531812548608 |