Glacier topography and elevation changes from Pléiades very high resolution stereo images
In response to climate change, most glaciers are losing mass and hence contribute to sea-level rise. Repeated and accurate mapping of their surface topography is required to estimate their mass balance and to extrapolate/calibrate sparse field glaciological measurements. In this study we evaluate th...
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ftconicet:oai:ri.conicet.gov.ar:11336/32434 2023-10-09T21:46:04+02:00 Glacier topography and elevation changes from Pléiades very high resolution stereo images Berthier, E. Vincent, C. Magnússon, E. Gunnlaugsson, A. P. Pitte, Pedro Miguel Le Meur, E. Masiokas, Mariano Hugo Ruiz, Lucas Ernesto Pálsson, F. Belart, J.M.C. Wagnon, P. application/pdf http://hdl.handle.net/11336/32434 eng eng Copernicus Publications info:eu-repo/semantics/altIdentifier/url/http://www.the-cryosphere.net/8/2275/2014/ info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-8-2275-2014 http://hdl.handle.net/11336/32434 Pálsson, F.; Pitte, Pedro Miguel; Vincent, C.; Masiokas, Mariano Hugo; Belart, J.M.C.; Wagnon, P.; et al.; Glacier topography and elevation changes from Pléiades very high resolution stereo images; Copernicus Publications; The Cryosphere; 8; 12-2014; 2275-2298 1994-0416 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ Glacier Pleiades satellite Mass balance Sub-meter stereo imagery https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.5194/tc-8-2275-2014 2023-09-24T18:53:54Z In response to climate change, most glaciers are losing mass and hence contribute to sea-level rise. Repeated and accurate mapping of their surface topography is required to estimate their mass balance and to extrapolate/calibrate sparse field glaciological measurements. In this study we evaluate the potential of Pléiades sub-meter stereo imagery to derive digital elevation models (DEMs) of glaciers and their elevation changes. Our five validation sites are located in Iceland, the European Alps, the Central Andes, Nepal and Antarctica. For all sites, nearly simultaneous field measurements were collected to evaluate the Pléiades DEMs. For Iceland, the Pléiades DEM is also 10 compared to a Lidar DEM. The vertical biases of the Pléiades DEMs are less than 1m if ground control points (GCPs) are used, but reach up to 6m without GCPs. Even without GCPs, vertical biases can be reduced to a few decimetres by horizontal and vertical co-registration of the DEMs to reference altimetric data on ice-free terrain. Around these biases, the vertical precision of the Pléiades DEMs is ±1m and even ±0.5m 15 on the flat glacier tongues (1-sigma confidence level). We also demonstrate the high potential of Pléiades DEMs for measuring seasonal, annual and multi-annual elevation changes with an accuracy of 1m or better. The negative glacier-wide mass balances of the Argentière Glacier and Mer de Glace (−1.21±0.16 and −1.19±0.16 m.w.e. yr−1, respectively) are revealed by differencing SPOT5 and Pléiades DEMs acquired in August 2003 and 2012 demonstrating the continuing rapid glacial wastage in the Mont-Blanc area. Fil: Berthier, E. Centre National de la Recherche Scientifique; Francia. Université de Toulouse; Francia Fil: Vincent, C. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; Francia Fil: Magnússon, E. University of Iceland. Institute of Earth Sciences; Islandia Fil: Gunnlaugsson, A. P. University of Iceland. Institute of Earth Sciences; Islandia Fil: Pitte, Pedro Miguel. Consejo Nacional ... Article in Journal/Newspaper Antarc* Antarctica glacier Iceland Islandia The Cryosphere CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Mont Blanc ENVELOPE(69.468,69.468,-49.461,-49.461) Pleiades ENVELOPE(165.533,165.533,-72.700,-72.700) The Cryosphere 8 6 2275 2291 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Glacier Pleiades satellite Mass balance Sub-meter stereo imagery https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Glacier Pleiades satellite Mass balance Sub-meter stereo imagery https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Berthier, E. Vincent, C. Magnússon, E. Gunnlaugsson, A. P. Pitte, Pedro Miguel Le Meur, E. Masiokas, Mariano Hugo Ruiz, Lucas Ernesto Pálsson, F. Belart, J.M.C. Wagnon, P. Glacier topography and elevation changes from Pléiades very high resolution stereo images |
topic_facet |
Glacier Pleiades satellite Mass balance Sub-meter stereo imagery https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
In response to climate change, most glaciers are losing mass and hence contribute to sea-level rise. Repeated and accurate mapping of their surface topography is required to estimate their mass balance and to extrapolate/calibrate sparse field glaciological measurements. In this study we evaluate the potential of Pléiades sub-meter stereo imagery to derive digital elevation models (DEMs) of glaciers and their elevation changes. Our five validation sites are located in Iceland, the European Alps, the Central Andes, Nepal and Antarctica. For all sites, nearly simultaneous field measurements were collected to evaluate the Pléiades DEMs. For Iceland, the Pléiades DEM is also 10 compared to a Lidar DEM. The vertical biases of the Pléiades DEMs are less than 1m if ground control points (GCPs) are used, but reach up to 6m without GCPs. Even without GCPs, vertical biases can be reduced to a few decimetres by horizontal and vertical co-registration of the DEMs to reference altimetric data on ice-free terrain. Around these biases, the vertical precision of the Pléiades DEMs is ±1m and even ±0.5m 15 on the flat glacier tongues (1-sigma confidence level). We also demonstrate the high potential of Pléiades DEMs for measuring seasonal, annual and multi-annual elevation changes with an accuracy of 1m or better. The negative glacier-wide mass balances of the Argentière Glacier and Mer de Glace (−1.21±0.16 and −1.19±0.16 m.w.e. yr−1, respectively) are revealed by differencing SPOT5 and Pléiades DEMs acquired in August 2003 and 2012 demonstrating the continuing rapid glacial wastage in the Mont-Blanc area. Fil: Berthier, E. Centre National de la Recherche Scientifique; Francia. Université de Toulouse; Francia Fil: Vincent, C. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; Francia Fil: Magnússon, E. University of Iceland. Institute of Earth Sciences; Islandia Fil: Gunnlaugsson, A. P. University of Iceland. Institute of Earth Sciences; Islandia Fil: Pitte, Pedro Miguel. Consejo Nacional ... |
format |
Article in Journal/Newspaper |
author |
Berthier, E. Vincent, C. Magnússon, E. Gunnlaugsson, A. P. Pitte, Pedro Miguel Le Meur, E. Masiokas, Mariano Hugo Ruiz, Lucas Ernesto Pálsson, F. Belart, J.M.C. Wagnon, P. |
author_facet |
Berthier, E. Vincent, C. Magnússon, E. Gunnlaugsson, A. P. Pitte, Pedro Miguel Le Meur, E. Masiokas, Mariano Hugo Ruiz, Lucas Ernesto Pálsson, F. Belart, J.M.C. Wagnon, P. |
author_sort |
Berthier, E. |
title |
Glacier topography and elevation changes from Pléiades very high resolution stereo images |
title_short |
Glacier topography and elevation changes from Pléiades very high resolution stereo images |
title_full |
Glacier topography and elevation changes from Pléiades very high resolution stereo images |
title_fullStr |
Glacier topography and elevation changes from Pléiades very high resolution stereo images |
title_full_unstemmed |
Glacier topography and elevation changes from Pléiades very high resolution stereo images |
title_sort |
glacier topography and elevation changes from pléiades very high resolution stereo images |
publisher |
Copernicus Publications |
url |
http://hdl.handle.net/11336/32434 |
long_lat |
ENVELOPE(69.468,69.468,-49.461,-49.461) ENVELOPE(165.533,165.533,-72.700,-72.700) |
geographic |
Mont Blanc Pleiades |
geographic_facet |
Mont Blanc Pleiades |
genre |
Antarc* Antarctica glacier Iceland Islandia The Cryosphere |
genre_facet |
Antarc* Antarctica glacier Iceland Islandia The Cryosphere |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://www.the-cryosphere.net/8/2275/2014/ info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-8-2275-2014 http://hdl.handle.net/11336/32434 Pálsson, F.; Pitte, Pedro Miguel; Vincent, C.; Masiokas, Mariano Hugo; Belart, J.M.C.; Wagnon, P.; et al.; Glacier topography and elevation changes from Pléiades very high resolution stereo images; Copernicus Publications; The Cryosphere; 8; 12-2014; 2275-2298 1994-0416 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.5194/tc-8-2275-2014 |
container_title |
The Cryosphere |
container_volume |
8 |
container_issue |
6 |
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2275 |
op_container_end_page |
2291 |
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1779321724223881216 |