Observations on the rock glaciers of Monte Emilius (valle d'Aosta, Italy)
Abstract Monte Emilius (3559 m a.s.l.) is a small mountain massif situated on the southern slope of Valle d'Aosta (Italy). Twenty‐six rock glaciers have been identified by use of aerial photographs. They are classified on the basis of their activity and subdivided into valley‐wall forms, cirque...
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crwiley:10.1002/ppp.3430030215 2024-06-02T08:13:05+00:00 Observations on the rock glaciers of Monte Emilius (valle d'Aosta, Italy) Smiraglia, Claudio 1992 http://dx.doi.org/10.1002/ppp.3430030215 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430030215 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430030215 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 3, issue 2, page 163-168 ISSN 1045-6740 1099-1530 journal-article 1992 crwiley https://doi.org/10.1002/ppp.3430030215 2024-05-03T11:04:39Z Abstract Monte Emilius (3559 m a.s.l.) is a small mountain massif situated on the southern slope of Valle d'Aosta (Italy). Twenty‐six rock glaciers have been identified by use of aerial photographs. They are classified on the basis of their activity and subdivided into valley‐wall forms, cirque‐floor forms and valley‐floor forms. The mean altitude of the fronts of the active rock glaciers is 2849 m a.s.l., whereas that of the inactive rock glaciers is 2453 m a.s.l. Utilizing data from six meterological stations in Valle d'Aosta, the large‐scale climatological boundary conditions at the lower limits of the active rock glaciers were defined by calculating the thermal gradient (0.58 °C/100 m) and total annual precipitation. The MAAT at the mean altitude of the active rock glaciers fronts proved to be −2.1 °C. This altitude should represent therefore the lower boundary of discontinuous permafrost. Article in Journal/Newspaper permafrost Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 3 2 163 168 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Monte Emilius (3559 m a.s.l.) is a small mountain massif situated on the southern slope of Valle d'Aosta (Italy). Twenty‐six rock glaciers have been identified by use of aerial photographs. They are classified on the basis of their activity and subdivided into valley‐wall forms, cirque‐floor forms and valley‐floor forms. The mean altitude of the fronts of the active rock glaciers is 2849 m a.s.l., whereas that of the inactive rock glaciers is 2453 m a.s.l. Utilizing data from six meterological stations in Valle d'Aosta, the large‐scale climatological boundary conditions at the lower limits of the active rock glaciers were defined by calculating the thermal gradient (0.58 °C/100 m) and total annual precipitation. The MAAT at the mean altitude of the active rock glaciers fronts proved to be −2.1 °C. This altitude should represent therefore the lower boundary of discontinuous permafrost. |
format |
Article in Journal/Newspaper |
author |
Smiraglia, Claudio |
spellingShingle |
Smiraglia, Claudio Observations on the rock glaciers of Monte Emilius (valle d'Aosta, Italy) |
author_facet |
Smiraglia, Claudio |
author_sort |
Smiraglia, Claudio |
title |
Observations on the rock glaciers of Monte Emilius (valle d'Aosta, Italy) |
title_short |
Observations on the rock glaciers of Monte Emilius (valle d'Aosta, Italy) |
title_full |
Observations on the rock glaciers of Monte Emilius (valle d'Aosta, Italy) |
title_fullStr |
Observations on the rock glaciers of Monte Emilius (valle d'Aosta, Italy) |
title_full_unstemmed |
Observations on the rock glaciers of Monte Emilius (valle d'Aosta, Italy) |
title_sort |
observations on the rock glaciers of monte emilius (valle d'aosta, italy) |
publisher |
Wiley |
publishDate |
1992 |
url |
http://dx.doi.org/10.1002/ppp.3430030215 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430030215 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430030215 |
genre |
permafrost Permafrost and Periglacial Processes |
genre_facet |
permafrost Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 3, issue 2, page 163-168 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.3430030215 |
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Permafrost and Periglacial Processes |
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3 |
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2 |
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163 |
op_container_end_page |
168 |
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1800759732507508736 |