25 years (1981-2005) of equilibrium-line altitude and mass-balance reconstruction on Glacier Blanc, French Alps, using remote-sensing methods and meteorological data
International audience Annual equilibrium-line altitude (ELA) and surface mass balance of Glacier Blanc, Ecrins region, French Alps, were reconstructed from a 25 year time series of satellite image (1981-2005). The remote-sensing method used was based on identification of the snowline, which is easy...
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ftunigrenoble:oai:HAL:hal-02590522v1 2023-05-15T16:57:10+02:00 25 years (1981-2005) of equilibrium-line altitude and mass-balance reconstruction on Glacier Blanc, French Alps, using remote-sensing methods and meteorological data Reconstitution sur 25 ans (1981-2005) de l'altitude de la ligne d'équilibre et du bilan de masse du Glacier Blanc (Alpes Françaises) à partir de méthodes de télédétection et de données météorologiques Rabatel, Andréane Dedieu, J.P. Thibert, Emmanuel Letréguilly, A. Vincent, C. Environnements, Dynamiques et Territoires de la Montagne (EDYTEM) Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Centre National de la Recherche Scientifique (CNRS) Érosion torrentielle, neige et avalanches (UR ETGR (ETNA)) Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF) 2008 https://hal.inrae.fr/hal-02590522 en eng HAL CCSD International Glaciological Society hal-02590522 https://hal.inrae.fr/hal-02590522 IRSTEA: PUB00024123 ISSN: 0022-1430 Journal of Glaciology https://hal.inrae.fr/hal-02590522 Journal of Glaciology, International Glaciological Society, 2008, 54 (185), pp.307-314 ELA GLACIER BLANC ECRINS MASSIF [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2008 ftunigrenoble 2021-09-14T22:35:01Z International audience Annual equilibrium-line altitude (ELA) and surface mass balance of Glacier Blanc, Ecrins region, French Alps, were reconstructed from a 25 year time series of satellite image (1981-2005). The remote-sensing method used was based on identification of the snowline, which is easy to discern on optical satellite images taken at the end of the ablation season. In addition, surface mass balances at the ELA were reconstructed for the same period using meteorological data from three nearby weather stations. A comparison of the two types of series reveals a correlation of r > 0.67 at the 0.01 level of significance. Furthermore, the surface mass balances obtained from remote-sensing data are consistent with those obtained from field measurements on five other French glaciers (r=0.76, p < 0.01). Also consistent for Glacier Blanc is the total mass loss(10.8mw.e.) over the studied period. However, the surface mass balances obtained with the remote-sensing method show lower interannual variability. Given that the remote-sensing method is based on changes in the ELA, this difference probably results from the lower sensitivity of the surface mass balance to climate parameters at the ELA. Article in Journal/Newspaper Journal of Glaciology Université Grenoble Alpes: HAL Ela ENVELOPE(9.642,9.642,63.170,63.170) Glacier Blanc ENVELOPE(69.433,69.433,-49.583,-49.583) |
institution |
Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
language |
English |
topic |
ELA GLACIER BLANC ECRINS MASSIF [SDE]Environmental Sciences |
spellingShingle |
ELA GLACIER BLANC ECRINS MASSIF [SDE]Environmental Sciences Rabatel, Andréane Dedieu, J.P. Thibert, Emmanuel Letréguilly, A. Vincent, C. 25 years (1981-2005) of equilibrium-line altitude and mass-balance reconstruction on Glacier Blanc, French Alps, using remote-sensing methods and meteorological data |
topic_facet |
ELA GLACIER BLANC ECRINS MASSIF [SDE]Environmental Sciences |
description |
International audience Annual equilibrium-line altitude (ELA) and surface mass balance of Glacier Blanc, Ecrins region, French Alps, were reconstructed from a 25 year time series of satellite image (1981-2005). The remote-sensing method used was based on identification of the snowline, which is easy to discern on optical satellite images taken at the end of the ablation season. In addition, surface mass balances at the ELA were reconstructed for the same period using meteorological data from three nearby weather stations. A comparison of the two types of series reveals a correlation of r > 0.67 at the 0.01 level of significance. Furthermore, the surface mass balances obtained from remote-sensing data are consistent with those obtained from field measurements on five other French glaciers (r=0.76, p < 0.01). Also consistent for Glacier Blanc is the total mass loss(10.8mw.e.) over the studied period. However, the surface mass balances obtained with the remote-sensing method show lower interannual variability. Given that the remote-sensing method is based on changes in the ELA, this difference probably results from the lower sensitivity of the surface mass balance to climate parameters at the ELA. |
author2 |
Environnements, Dynamiques et Territoires de la Montagne (EDYTEM) Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Centre National de la Recherche Scientifique (CNRS) Érosion torrentielle, neige et avalanches (UR ETGR (ETNA)) Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF) |
format |
Article in Journal/Newspaper |
author |
Rabatel, Andréane Dedieu, J.P. Thibert, Emmanuel Letréguilly, A. Vincent, C. |
author_facet |
Rabatel, Andréane Dedieu, J.P. Thibert, Emmanuel Letréguilly, A. Vincent, C. |
author_sort |
Rabatel, Andréane |
title |
25 years (1981-2005) of equilibrium-line altitude and mass-balance reconstruction on Glacier Blanc, French Alps, using remote-sensing methods and meteorological data |
title_short |
25 years (1981-2005) of equilibrium-line altitude and mass-balance reconstruction on Glacier Blanc, French Alps, using remote-sensing methods and meteorological data |
title_full |
25 years (1981-2005) of equilibrium-line altitude and mass-balance reconstruction on Glacier Blanc, French Alps, using remote-sensing methods and meteorological data |
title_fullStr |
25 years (1981-2005) of equilibrium-line altitude and mass-balance reconstruction on Glacier Blanc, French Alps, using remote-sensing methods and meteorological data |
title_full_unstemmed |
25 years (1981-2005) of equilibrium-line altitude and mass-balance reconstruction on Glacier Blanc, French Alps, using remote-sensing methods and meteorological data |
title_sort |
25 years (1981-2005) of equilibrium-line altitude and mass-balance reconstruction on glacier blanc, french alps, using remote-sensing methods and meteorological data |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.inrae.fr/hal-02590522 |
long_lat |
ENVELOPE(9.642,9.642,63.170,63.170) ENVELOPE(69.433,69.433,-49.583,-49.583) |
geographic |
Ela Glacier Blanc |
geographic_facet |
Ela Glacier Blanc |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
ISSN: 0022-1430 Journal of Glaciology https://hal.inrae.fr/hal-02590522 Journal of Glaciology, International Glaciological Society, 2008, 54 (185), pp.307-314 |
op_relation |
hal-02590522 https://hal.inrae.fr/hal-02590522 IRSTEA: PUB00024123 |
_version_ |
1766048442237321216 |