Assessing the relevance of digital elevation models to evaluate glacier mass balance : application to Austre Lovénbreen (Spitsbergen, 79 ° N)
International audience The volume variation of a glacier is the actual indicator of long term and short term evolution of the glacier behaviour. In order to assess the volume evolution of the Austre Lovénbreen (79 • N) over the last 47 years, we used multiple historical datasets, complemented with o...
Published in: | Polar Record |
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Main Authors: | , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2012
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Subjects: | |
Online Access: | https://hal.science/hal-01186500 https://hal.science/hal-01186500/document https://hal.science/hal-01186500/file/02bfe50f563199a8a0000000.pdf https://doi.org/10.1017/S0032247411000465 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
language |
English |
topic |
glacier mass balance Austre Lovénbreen Spitsbergen [SHS.GEO]Humanities and Social Sciences/Geography |
spellingShingle |
glacier mass balance Austre Lovénbreen Spitsbergen [SHS.GEO]Humanities and Social Sciences/Geography Friedt, J-M Tolle, Florian Bernard, Eric Griselin, Madeleine Laffly, Dominique Marlin, C Assessing the relevance of digital elevation models to evaluate glacier mass balance : application to Austre Lovénbreen (Spitsbergen, 79 ° N) |
topic_facet |
glacier mass balance Austre Lovénbreen Spitsbergen [SHS.GEO]Humanities and Social Sciences/Geography |
description |
International audience The volume variation of a glacier is the actual indicator of long term and short term evolution of the glacier behaviour. In order to assess the volume evolution of the Austre Lovénbreen (79 • N) over the last 47 years, we used multiple historical datasets, complemented with our high density GPS tracks acquired in 2007 and 2010. The improved altitude resolution of recent measurement techniques, including phase corrected GPS and LiDAR, reduces the time interval between datasets used for volume subtraction in order to compute the mass balance. We estimate the sub-metre elevation accuracy of most recent measurement techniques to be sufficient to record ice thickness evolutions occurring over a 3 year duration at polar latitudes. The systematic discrepancy between ablation stake measurements and DEM analysis, widely reported in the literature as well as in the current study, yields new questions concerning the similarity and relationship between these two measurement methods. The use of Digital Elevation Model (DEM) has been an attractive alternative measurement technique to estimate glacier area and volume evolution over time with respect to the classical in situ measurement techniques based on ablation stakes. With the availability of historical datasets, whether from ground based maps, aerial photography or satellite data acquisition, such a glacier volume estimate strategy allows for the extension of the analysis duration beyond the current research programmes. Furthermore, these methods do provide a continuous spatial coverage defined by its cell size whereas interpolations based on a limited number of stakes display large spatial uncertainties. In this document, we focus on estimating the altitude accuracy of various datasets acquired between 1962 and 2010, using various techniques ranging from topographic maps to dual frequency skidoo-tracked GPS receivers and the classical aerial and satellite photogrammetric techniques. |
author2 |
Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST) Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Théoriser et modéliser pour aménager (UMR 6049) (ThéMA) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Géographie de l'environnement (GEODE) Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS) Interactions et dynamique des environnements de surface (IDES) Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Friedt, J-M Tolle, Florian Bernard, Eric Griselin, Madeleine Laffly, Dominique Marlin, C |
author_facet |
Friedt, J-M Tolle, Florian Bernard, Eric Griselin, Madeleine Laffly, Dominique Marlin, C |
author_sort |
Friedt, J-M |
title |
Assessing the relevance of digital elevation models to evaluate glacier mass balance : application to Austre Lovénbreen (Spitsbergen, 79 ° N) |
title_short |
Assessing the relevance of digital elevation models to evaluate glacier mass balance : application to Austre Lovénbreen (Spitsbergen, 79 ° N) |
title_full |
Assessing the relevance of digital elevation models to evaluate glacier mass balance : application to Austre Lovénbreen (Spitsbergen, 79 ° N) |
title_fullStr |
Assessing the relevance of digital elevation models to evaluate glacier mass balance : application to Austre Lovénbreen (Spitsbergen, 79 ° N) |
title_full_unstemmed |
Assessing the relevance of digital elevation models to evaluate glacier mass balance : application to Austre Lovénbreen (Spitsbergen, 79 ° N) |
title_sort |
assessing the relevance of digital elevation models to evaluate glacier mass balance : application to austre lovénbreen (spitsbergen, 79 ° n) |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-01186500 https://hal.science/hal-01186500/document https://hal.science/hal-01186500/file/02bfe50f563199a8a0000000.pdf https://doi.org/10.1017/S0032247411000465 |
genre |
Polar Record Spitsbergen |
genre_facet |
Polar Record Spitsbergen |
op_source |
ISSN: 0032-2474 EISSN: 1475-3057 Polar Record https://hal.science/hal-01186500 Polar Record, 2012, 48 (244), pp.2-10. ⟨10.1017/S0032247411000465⟩ |
op_relation |
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op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1017/S0032247411000465 |
container_title |
Polar Record |
container_volume |
48 |
container_issue |
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10 |
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1766173006051147776 |
spelling |
ftunivnantes:oai:HAL:hal-01186500v1 2023-05-15T18:02:37+02:00 Assessing the relevance of digital elevation models to evaluate glacier mass balance : application to Austre Lovénbreen (Spitsbergen, 79 ° N) Friedt, J-M Tolle, Florian Bernard, Eric Griselin, Madeleine Laffly, Dominique Marlin, C Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST) Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Théoriser et modéliser pour aménager (UMR 6049) (ThéMA) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Géographie de l'environnement (GEODE) Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS) Interactions et dynamique des environnements de surface (IDES) Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2012 https://hal.science/hal-01186500 https://hal.science/hal-01186500/document https://hal.science/hal-01186500/file/02bfe50f563199a8a0000000.pdf https://doi.org/10.1017/S0032247411000465 en eng HAL CCSD Cambridge University Press (CUP) info:eu-repo/semantics/altIdentifier/doi/10.1017/S0032247411000465 hal-01186500 https://hal.science/hal-01186500 https://hal.science/hal-01186500/document https://hal.science/hal-01186500/file/02bfe50f563199a8a0000000.pdf doi:10.1017/S0032247411000465 info:eu-repo/semantics/OpenAccess ISSN: 0032-2474 EISSN: 1475-3057 Polar Record https://hal.science/hal-01186500 Polar Record, 2012, 48 (244), pp.2-10. ⟨10.1017/S0032247411000465⟩ glacier mass balance Austre Lovénbreen Spitsbergen [SHS.GEO]Humanities and Social Sciences/Geography info:eu-repo/semantics/article Journal articles 2012 ftunivnantes https://doi.org/10.1017/S0032247411000465 2023-02-08T10:38:07Z International audience The volume variation of a glacier is the actual indicator of long term and short term evolution of the glacier behaviour. In order to assess the volume evolution of the Austre Lovénbreen (79 • N) over the last 47 years, we used multiple historical datasets, complemented with our high density GPS tracks acquired in 2007 and 2010. The improved altitude resolution of recent measurement techniques, including phase corrected GPS and LiDAR, reduces the time interval between datasets used for volume subtraction in order to compute the mass balance. We estimate the sub-metre elevation accuracy of most recent measurement techniques to be sufficient to record ice thickness evolutions occurring over a 3 year duration at polar latitudes. The systematic discrepancy between ablation stake measurements and DEM analysis, widely reported in the literature as well as in the current study, yields new questions concerning the similarity and relationship between these two measurement methods. The use of Digital Elevation Model (DEM) has been an attractive alternative measurement technique to estimate glacier area and volume evolution over time with respect to the classical in situ measurement techniques based on ablation stakes. With the availability of historical datasets, whether from ground based maps, aerial photography or satellite data acquisition, such a glacier volume estimate strategy allows for the extension of the analysis duration beyond the current research programmes. Furthermore, these methods do provide a continuous spatial coverage defined by its cell size whereas interpolations based on a limited number of stakes display large spatial uncertainties. In this document, we focus on estimating the altitude accuracy of various datasets acquired between 1962 and 2010, using various techniques ranging from topographic maps to dual frequency skidoo-tracked GPS receivers and the classical aerial and satellite photogrammetric techniques. Article in Journal/Newspaper Polar Record Spitsbergen Université de Nantes: HAL-UNIV-NANTES Polar Record 48 1 2 10 |