Inventory, distribution and topographic features of rock glaciers in the southern region of the Eastern Italian Alps (Trentino).
A GIS-based rock glacier inventory was conducted in a region of about 6200 km2 located in the southern sector of the Eastern Italian Alps (Trentino). The five major mountain groups of the region were investigated and a total of 705 rock glaciers, 25% of which are intact (i.e. containing permafrost),...
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ftunivpadovairis:oai:www.research.unipd.it:11577/2578860 2024-02-04T10:03:50+01:00 Inventory, distribution and topographic features of rock glaciers in the southern region of the Eastern Italian Alps (Trentino). R. Seppi M. Zumiani M. Dall’Amico G: Zampedri R. Rigon CARTON, ALBERTO R., Seppi Carton, Alberto M., Zumiani M., Dall’Amico G:, Zampedri R., Rigon 2012 STAMPA http://hdl.handle.net/11577/2578860 https://doi.org/10.4461/GFDQ.2012.35.17 eng eng Brigati_Genova info:eu-repo/semantics/altIdentifier/wos/WOS:000324508500007 volume:35(2) firstpage:185 lastpage:197 numberofpages:13 journal:GEOGRAFIA FISICA E DINAMICA QUATERNARIA http://hdl.handle.net/11577/2578860 doi:10.4461/GFDQ.2012.35.17 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84873314348 Rock glacier inventory GIS Rock glacier distribution Permafrost Eastern Italian Alps info:eu-repo/semantics/article 2012 ftunivpadovairis https://doi.org/10.4461/GFDQ.2012.35.17 2024-01-10T17:48:48Z A GIS-based rock glacier inventory was conducted in a region of about 6200 km2 located in the southern sector of the Eastern Italian Alps (Trentino). The five major mountain groups of the region were investigated and a total of 705 rock glaciers, 25% of which are intact (i.e. containing permafrost), were identified. Their spatial distribution is rather inhomogeneous, which suggests that, in addition to climate, the bedrock lithology and structure are among the key factors controlling their genesis and development. The lowest density of rock glaciers was associated with carbonatic rock outcroppings (e.g. in the Brenta Group and in the Dolomites), whereas the highest density was observed in areas dominated by metamorphic rocks (e.g. Ortles Cevedale group). The rock glaciers cover a total area of 33.3 km2, which is more than 1.4% of the area located above 1600 m a.s.l. and is comparable to the area covered by glaciers (38.3 km2 in 2003). The rock glaciers are located at a mean elevation of 2282 ±289 m a.s.l. and are distributed in an elevation range of about 1440 m. Considering separately the two classes of intact and relict (i.e. with no permafrost) rock glaciers, the mean elevation is 2632 ±205 m a.s.l. and 2169 ±211 m a.s.l. respectively. Relict rock glaciers are found between 1650 and 2700 m a.s.l., whereas above 2800 m a.s.l. only intact rock glaciers exist. The mean aspect of all the inventoried rock glaciers is 43°. A dominant northern orientation does not emerge in the class of the intact forms, whereas the relict rock glaciers show a predominant northern orientation with a mean aspect of about 30°. According to the mean elevation of the intact rock glaciers, the lower boundary of permafrost in the studied region would be located at an elevation of approximately 2630 m a.s.l. This boundary varies significantly when considering the different exposures, and ranges from about 2510 m a.s.l. on north-facing slopes to about 2690 m a.s.l. on those exposed to the south. The lower boundary of permafrost existence in ... Article in Journal/Newspaper permafrost Padua Research Archive (IRIS - Università degli Studi di Padova) |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
English |
topic |
Rock glacier inventory GIS Rock glacier distribution Permafrost Eastern Italian Alps |
spellingShingle |
Rock glacier inventory GIS Rock glacier distribution Permafrost Eastern Italian Alps R. Seppi M. Zumiani M. Dall’Amico G: Zampedri R. Rigon CARTON, ALBERTO Inventory, distribution and topographic features of rock glaciers in the southern region of the Eastern Italian Alps (Trentino). |
topic_facet |
Rock glacier inventory GIS Rock glacier distribution Permafrost Eastern Italian Alps |
description |
A GIS-based rock glacier inventory was conducted in a region of about 6200 km2 located in the southern sector of the Eastern Italian Alps (Trentino). The five major mountain groups of the region were investigated and a total of 705 rock glaciers, 25% of which are intact (i.e. containing permafrost), were identified. Their spatial distribution is rather inhomogeneous, which suggests that, in addition to climate, the bedrock lithology and structure are among the key factors controlling their genesis and development. The lowest density of rock glaciers was associated with carbonatic rock outcroppings (e.g. in the Brenta Group and in the Dolomites), whereas the highest density was observed in areas dominated by metamorphic rocks (e.g. Ortles Cevedale group). The rock glaciers cover a total area of 33.3 km2, which is more than 1.4% of the area located above 1600 m a.s.l. and is comparable to the area covered by glaciers (38.3 km2 in 2003). The rock glaciers are located at a mean elevation of 2282 ±289 m a.s.l. and are distributed in an elevation range of about 1440 m. Considering separately the two classes of intact and relict (i.e. with no permafrost) rock glaciers, the mean elevation is 2632 ±205 m a.s.l. and 2169 ±211 m a.s.l. respectively. Relict rock glaciers are found between 1650 and 2700 m a.s.l., whereas above 2800 m a.s.l. only intact rock glaciers exist. The mean aspect of all the inventoried rock glaciers is 43°. A dominant northern orientation does not emerge in the class of the intact forms, whereas the relict rock glaciers show a predominant northern orientation with a mean aspect of about 30°. According to the mean elevation of the intact rock glaciers, the lower boundary of permafrost in the studied region would be located at an elevation of approximately 2630 m a.s.l. This boundary varies significantly when considering the different exposures, and ranges from about 2510 m a.s.l. on north-facing slopes to about 2690 m a.s.l. on those exposed to the south. The lower boundary of permafrost existence in ... |
author2 |
R., Seppi Carton, Alberto M., Zumiani M., Dall’Amico G:, Zampedri R., Rigon |
format |
Article in Journal/Newspaper |
author |
R. Seppi M. Zumiani M. Dall’Amico G: Zampedri R. Rigon CARTON, ALBERTO |
author_facet |
R. Seppi M. Zumiani M. Dall’Amico G: Zampedri R. Rigon CARTON, ALBERTO |
author_sort |
R. Seppi |
title |
Inventory, distribution and topographic features of rock glaciers in the southern region of the Eastern Italian Alps (Trentino). |
title_short |
Inventory, distribution and topographic features of rock glaciers in the southern region of the Eastern Italian Alps (Trentino). |
title_full |
Inventory, distribution and topographic features of rock glaciers in the southern region of the Eastern Italian Alps (Trentino). |
title_fullStr |
Inventory, distribution and topographic features of rock glaciers in the southern region of the Eastern Italian Alps (Trentino). |
title_full_unstemmed |
Inventory, distribution and topographic features of rock glaciers in the southern region of the Eastern Italian Alps (Trentino). |
title_sort |
inventory, distribution and topographic features of rock glaciers in the southern region of the eastern italian alps (trentino). |
publisher |
Brigati_Genova |
publishDate |
2012 |
url |
http://hdl.handle.net/11577/2578860 https://doi.org/10.4461/GFDQ.2012.35.17 |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000324508500007 volume:35(2) firstpage:185 lastpage:197 numberofpages:13 journal:GEOGRAFIA FISICA E DINAMICA QUATERNARIA http://hdl.handle.net/11577/2578860 doi:10.4461/GFDQ.2012.35.17 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84873314348 |
op_doi |
https://doi.org/10.4461/GFDQ.2012.35.17 |
_version_ |
1789971591451377664 |