Accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on Colle Gnifetti, Monte Rosa, Swiss Alps
In a snow pit, incorporating about 2.5 a of accumulation, on the 4450 m high Colle Gnifetti, Monte Rosa, various snow characteristics, isotopes (δ 18O, 3H), electrical conductivity, dust, trace elements, and pollen were investigated. The aim of this study was to develop a key for the stratigraphic i...
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Language: | English |
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International Glaciological Society
1983
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Online Access: | https://boris.unibe.ch/158675/1/accumulation-characteristics-on-a-cold-high-alpine-firn-saddle-from-a-snow-pit-study-on-colle-gnifetti-monte-rosa-swiss-alps.pdf https://boris.unibe.ch/158675/ |
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ftunivbern:oai:boris.unibe.ch:158675 2023-08-20T04:07:38+02:00 Accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on Colle Gnifetti, Monte Rosa, Swiss Alps Haeberli, W. Schotterer, U. Wagenbach, D. Haeberli-Schwitter, H. Bortenschlager, S. 1983 application/pdf https://boris.unibe.ch/158675/1/accumulation-characteristics-on-a-cold-high-alpine-firn-saddle-from-a-snow-pit-study-on-colle-gnifetti-monte-rosa-swiss-alps.pdf https://boris.unibe.ch/158675/ eng eng International Glaciological Society https://boris.unibe.ch/158675/ info:eu-repo/semantics/restrictedAccess Haeberli, W.; Schotterer, U.; Wagenbach, D.; Haeberli-Schwitter, H.; Bortenschlager, S. (1983). Accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on Colle Gnifetti, Monte Rosa, Swiss Alps. Journal of glaciology, 29(102), pp. 260-271. International Glaciological Society 10.3189/S0022143000008315 <http://dx.doi.org/10.3189/S0022143000008315> 530 Physics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 1983 ftunivbern https://doi.org/10.3189/S0022143000008315 2023-07-31T22:08:15Z In a snow pit, incorporating about 2.5 a of accumulation, on the 4450 m high Colle Gnifetti, Monte Rosa, various snow characteristics, isotopes (δ 18O, 3H), electrical conductivity, dust, trace elements, and pollen were investigated. The aim of this study was to develop a key for the stratigraphic interpretation of cores from cold, high-alpine firn areas. It appears that the strong influence of wind results in mixing and re-sedimentation processes in the surface layers. Nevertheless, by interpreting several parameters in a combined way, it is possible to classify a large number of the layers according to their season and sometimes to their place of origin. Apart from the melt layers, which only appear in early summer to summer layers, other prominent features are the (Saharan) dust falls, characterized by dust and conductivity peaks. Diverses caractéristiques de la neige, isotopes (δ 18O, 3H), conductivité électrique, poussières, trace d’éléments et pollen ont été étudiés dans une tranchée englobant environ deux ans et demi d’accumulation neigeuse afin de déterminer une «clef» pour l’interprétation stratigraphique des carottages dans les régions de névés froids en haute-montagne sur le Colle Gnifetti (4450 m s.m., Mont Rose). On observe que la forte influence du vent mène à des phénomènes de mélange et de résédimentation des couches superficielles. Toutefois, sur la base de l’information tirée de la combinaison des différents paramètres observés, il est possible de dater une grande part des couches de neige et parfois d’en déterminer l’origine. En plus des horizons de glace, qui n’apparaissent que dans les couches estivales, des indices marquants sont les poussières sahariennes, caractérisées par la pointe de teneur en poussière et de conductivité. An einem rund 2.5 Jahresschichten umfassenden Schneeschacht auf dem 4450 m hohen Colle Gnifetti, Monte Rosa, wurden diverse Schneecharakteristiken, Isotopen (δ 18O, 3H), elektrische Leitfähigkeit, Staub, Spurenelemente und Pollen untersucht. Ziel dieser ... Article in Journal/Newspaper Journal of Glaciology BORIS (Bern Open Repository and Information System, University of Bern) Dater ENVELOPE(-64.825,-64.825,-67.145,-67.145) Mont Rose ENVELOPE(-68.287,-68.287,-67.400,-67.400) Monte Rosa ENVELOPE(162.850,162.850,-70.917,-70.917) Journal of Glaciology 29 102 260 271 |
institution |
Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
530 Physics |
spellingShingle |
530 Physics Haeberli, W. Schotterer, U. Wagenbach, D. Haeberli-Schwitter, H. Bortenschlager, S. Accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on Colle Gnifetti, Monte Rosa, Swiss Alps |
topic_facet |
530 Physics |
description |
In a snow pit, incorporating about 2.5 a of accumulation, on the 4450 m high Colle Gnifetti, Monte Rosa, various snow characteristics, isotopes (δ 18O, 3H), electrical conductivity, dust, trace elements, and pollen were investigated. The aim of this study was to develop a key for the stratigraphic interpretation of cores from cold, high-alpine firn areas. It appears that the strong influence of wind results in mixing and re-sedimentation processes in the surface layers. Nevertheless, by interpreting several parameters in a combined way, it is possible to classify a large number of the layers according to their season and sometimes to their place of origin. Apart from the melt layers, which only appear in early summer to summer layers, other prominent features are the (Saharan) dust falls, characterized by dust and conductivity peaks. Diverses caractéristiques de la neige, isotopes (δ 18O, 3H), conductivité électrique, poussières, trace d’éléments et pollen ont été étudiés dans une tranchée englobant environ deux ans et demi d’accumulation neigeuse afin de déterminer une «clef» pour l’interprétation stratigraphique des carottages dans les régions de névés froids en haute-montagne sur le Colle Gnifetti (4450 m s.m., Mont Rose). On observe que la forte influence du vent mène à des phénomènes de mélange et de résédimentation des couches superficielles. Toutefois, sur la base de l’information tirée de la combinaison des différents paramètres observés, il est possible de dater une grande part des couches de neige et parfois d’en déterminer l’origine. En plus des horizons de glace, qui n’apparaissent que dans les couches estivales, des indices marquants sont les poussières sahariennes, caractérisées par la pointe de teneur en poussière et de conductivité. An einem rund 2.5 Jahresschichten umfassenden Schneeschacht auf dem 4450 m hohen Colle Gnifetti, Monte Rosa, wurden diverse Schneecharakteristiken, Isotopen (δ 18O, 3H), elektrische Leitfähigkeit, Staub, Spurenelemente und Pollen untersucht. Ziel dieser ... |
format |
Article in Journal/Newspaper |
author |
Haeberli, W. Schotterer, U. Wagenbach, D. Haeberli-Schwitter, H. Bortenschlager, S. |
author_facet |
Haeberli, W. Schotterer, U. Wagenbach, D. Haeberli-Schwitter, H. Bortenschlager, S. |
author_sort |
Haeberli, W. |
title |
Accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on Colle Gnifetti, Monte Rosa, Swiss Alps |
title_short |
Accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on Colle Gnifetti, Monte Rosa, Swiss Alps |
title_full |
Accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on Colle Gnifetti, Monte Rosa, Swiss Alps |
title_fullStr |
Accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on Colle Gnifetti, Monte Rosa, Swiss Alps |
title_full_unstemmed |
Accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on Colle Gnifetti, Monte Rosa, Swiss Alps |
title_sort |
accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on colle gnifetti, monte rosa, swiss alps |
publisher |
International Glaciological Society |
publishDate |
1983 |
url |
https://boris.unibe.ch/158675/1/accumulation-characteristics-on-a-cold-high-alpine-firn-saddle-from-a-snow-pit-study-on-colle-gnifetti-monte-rosa-swiss-alps.pdf https://boris.unibe.ch/158675/ |
long_lat |
ENVELOPE(-64.825,-64.825,-67.145,-67.145) ENVELOPE(-68.287,-68.287,-67.400,-67.400) ENVELOPE(162.850,162.850,-70.917,-70.917) |
geographic |
Dater Mont Rose Monte Rosa |
geographic_facet |
Dater Mont Rose Monte Rosa |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Haeberli, W.; Schotterer, U.; Wagenbach, D.; Haeberli-Schwitter, H.; Bortenschlager, S. (1983). Accumulation characteristics on a cold, high-alpinef firn saddle from a snow-pit study on Colle Gnifetti, Monte Rosa, Swiss Alps. Journal of glaciology, 29(102), pp. 260-271. International Glaciological Society 10.3189/S0022143000008315 <http://dx.doi.org/10.3189/S0022143000008315> |
op_relation |
https://boris.unibe.ch/158675/ |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3189/S0022143000008315 |
container_title |
Journal of Glaciology |
container_volume |
29 |
container_issue |
102 |
container_start_page |
260 |
op_container_end_page |
271 |
_version_ |
1774719419929329664 |