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...

Full description

Bibliographic Details
Published in:Journal of Glaciology
Main Authors: Haeberli, W., Schotterer, U., Wagenbach, D., Haeberli-Schwitter, H., Bortenschlager, S.
Format: Article in Journal/Newspaper
Language:English
Published: International Glaciological Society 1983
Subjects:
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/
id ftunivbern:oai:boris.unibe.ch:158675
record_format openpolar
spelling 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