Two Decades of Responses (1986-2006) to Climate by the Laurichard Rock Glacier, French Alps
The Laurichard active rock glacier is the permafrost-related landform with the longest record of monitoring in France, including an annual geodetic survey, repeated geoelectrical campaigns from 1979 onwards and continuous recording of ground temperature since 2003. These data were used to examine ch...
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Language: | English |
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ftcemoa:oai:irsteadoc.irstea.fr:PUB00027291 2023-05-15T17:57:27+02:00 Two Decades of Responses (1986-2006) to Climate by the Laurichard Rock Glacier, French Alps Bodin, X. Thibert, E. Fabre, D. Ribolini, A. Schoeneich, P. Francou, B. Reynaud, L. Fort, M. PARIS 7 UMR 8586 PRODIG FRA CEMAGREF GRENOBLE ETGR CONSERVATOIRE NATIONAL DES ARTS ET METIERS PARIS FRA DEPT SC DELLA TERRA UNIVERSITE DE PISA ITA INSTITUT DE GEOGRAPHIE ALPINE GRENOBLE I FRA LTHE CNRS GRENOBLE I FRA LGGE CNRS GRENOBLE I FRA ALPES FRANCAISES 2009 application/pdf https://irsteadoc.irstea.fr/cemoa/PUB00027291 Anglais eng http://dx.doi.org/doi:10.1002/ppp.665 https://irsteadoc.irstea.fr/cemoa/PUB00027291 Date de dépôt: 2009-12-04 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). 22710 GLACIER CHANGEMENT CLIMATIQUE ACCUMULATION DE NEIGE MOUVEMENT DU MANTEAU CLIMATIC CHANGE Article de revue scientifique à comité de lecture 2009 ftcemoa https://doi.org/10.1002/ppp.665 2021-06-29T09:20:49Z The Laurichard active rock glacier is the permafrost-related landform with the longest record of monitoring in France, including an annual geodetic survey, repeated geoelectrical campaigns from 1979 onwards and continuous recording of ground temperature since 2003. These data were used to examine changes in creep rates and internal structure from 1986 to 2006. The control that climatic variables exert on rock glacier kinematics was investigated over three time scales. Between the 1980s and the early 2000s, the main observed changes were a general increase in surface velocity and a decrease in internal resistivity. At a multi-year scale, the high correlation between surface movement and snow thickness in the preceding December appears to confirm the importance of snow cover conditions in early winter through their influence on the ground thermal regime. A comparison of surface velocities, regional climatic datasets and ground sub-surface temperatures over six years suggests a strong relation between rock glacier deformation and ground temperature, as well as a role for liquid water due to melt of thick snow cover. Finally, unusual surface lowering that accompanied peak velocities in 2004 may be due to a general thaw of the top of the permafrost, probably caused both by two successive snowy winters and by high energy inputs during the warm summer of 2003. Article in Journal/Newspaper permafrost Irstea Publications et Bases documentaires (Irstea@doc/CemOA) Permafrost and Periglacial Processes 20 4 331 344 |
institution |
Open Polar |
collection |
Irstea Publications et Bases documentaires (Irstea@doc/CemOA) |
op_collection_id |
ftcemoa |
language |
English |
topic |
GLACIER CHANGEMENT CLIMATIQUE ACCUMULATION DE NEIGE MOUVEMENT DU MANTEAU CLIMATIC CHANGE |
spellingShingle |
GLACIER CHANGEMENT CLIMATIQUE ACCUMULATION DE NEIGE MOUVEMENT DU MANTEAU CLIMATIC CHANGE Bodin, X. Thibert, E. Fabre, D. Ribolini, A. Schoeneich, P. Francou, B. Reynaud, L. Fort, M. Two Decades of Responses (1986-2006) to Climate by the Laurichard Rock Glacier, French Alps |
topic_facet |
GLACIER CHANGEMENT CLIMATIQUE ACCUMULATION DE NEIGE MOUVEMENT DU MANTEAU CLIMATIC CHANGE |
description |
The Laurichard active rock glacier is the permafrost-related landform with the longest record of monitoring in France, including an annual geodetic survey, repeated geoelectrical campaigns from 1979 onwards and continuous recording of ground temperature since 2003. These data were used to examine changes in creep rates and internal structure from 1986 to 2006. The control that climatic variables exert on rock glacier kinematics was investigated over three time scales. Between the 1980s and the early 2000s, the main observed changes were a general increase in surface velocity and a decrease in internal resistivity. At a multi-year scale, the high correlation between surface movement and snow thickness in the preceding December appears to confirm the importance of snow cover conditions in early winter through their influence on the ground thermal regime. A comparison of surface velocities, regional climatic datasets and ground sub-surface temperatures over six years suggests a strong relation between rock glacier deformation and ground temperature, as well as a role for liquid water due to melt of thick snow cover. Finally, unusual surface lowering that accompanied peak velocities in 2004 may be due to a general thaw of the top of the permafrost, probably caused both by two successive snowy winters and by high energy inputs during the warm summer of 2003. |
author2 |
PARIS 7 UMR 8586 PRODIG FRA CEMAGREF GRENOBLE ETGR CONSERVATOIRE NATIONAL DES ARTS ET METIERS PARIS FRA DEPT SC DELLA TERRA UNIVERSITE DE PISA ITA INSTITUT DE GEOGRAPHIE ALPINE GRENOBLE I FRA LTHE CNRS GRENOBLE I FRA LGGE CNRS GRENOBLE I FRA |
format |
Article in Journal/Newspaper |
author |
Bodin, X. Thibert, E. Fabre, D. Ribolini, A. Schoeneich, P. Francou, B. Reynaud, L. Fort, M. |
author_facet |
Bodin, X. Thibert, E. Fabre, D. Ribolini, A. Schoeneich, P. Francou, B. Reynaud, L. Fort, M. |
author_sort |
Bodin, X. |
title |
Two Decades of Responses (1986-2006) to Climate by the Laurichard Rock Glacier, French Alps |
title_short |
Two Decades of Responses (1986-2006) to Climate by the Laurichard Rock Glacier, French Alps |
title_full |
Two Decades of Responses (1986-2006) to Climate by the Laurichard Rock Glacier, French Alps |
title_fullStr |
Two Decades of Responses (1986-2006) to Climate by the Laurichard Rock Glacier, French Alps |
title_full_unstemmed |
Two Decades of Responses (1986-2006) to Climate by the Laurichard Rock Glacier, French Alps |
title_sort |
two decades of responses (1986-2006) to climate by the laurichard rock glacier, french alps |
publishDate |
2009 |
url |
https://irsteadoc.irstea.fr/cemoa/PUB00027291 |
op_coverage |
ALPES FRANCAISES |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
22710 |
op_relation |
http://dx.doi.org/doi:10.1002/ppp.665 https://irsteadoc.irstea.fr/cemoa/PUB00027291 |
op_rights |
Date de dépôt: 2009-12-04 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). |
op_doi |
https://doi.org/10.1002/ppp.665 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
20 |
container_issue |
4 |
container_start_page |
331 |
op_container_end_page |
344 |
_version_ |
1766165891620274176 |