Assessment of periglacial response to increased runoff: An Arctic hydrosystem bears witness
International audience In the general context of global warming, the cryosphere appears as an environment that exhibits a strong sensitivity to climate variations. Overall, glacier systems are now known to be reliable indicators of climate trends. Although glacier dynamics are subject to internation...
Published in: | Land Degradation & Development |
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Online Access: | https://hal.science/hal-02399275 https://hal.science/hal-02399275/document https://hal.science/hal-02399275/file/53b75d98-93aa-43e1-9aa3-02c935c98fd8-author.pdf https://doi.org/10.1002/ldr.3099 |
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ftunifranchecom:oai:HAL:hal-02399275v1 2024-09-15T18:07:57+00:00 Assessment of periglacial response to increased runoff: An Arctic hydrosystem bears witness Bernard, Eric Friedt, Jean Schiavone, Sophie Tolle, Florian Griselin, Madeleine Théoriser et modéliser pour aménager (UMR 6049) (ThéMA) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) 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) 2018 https://hal.science/hal-02399275 https://hal.science/hal-02399275/document https://hal.science/hal-02399275/file/53b75d98-93aa-43e1-9aa3-02c935c98fd8-author.pdf https://doi.org/10.1002/ldr.3099 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1002/ldr.3099 hal-02399275 https://hal.science/hal-02399275 https://hal.science/hal-02399275/document https://hal.science/hal-02399275/file/53b75d98-93aa-43e1-9aa3-02c935c98fd8-author.pdf doi:10.1002/ldr.3099 info:eu-repo/semantics/OpenAccess ISSN: 1085-3278 EISSN: 1099-145X Land Degradation and Development https://hal.science/hal-02399275 Land Degradation and Development, 2018, 29 (10), pp.3709 - 3720. ⟨10.1002/ldr.3099⟩ [SPI.OTHER]Engineering Sciences [physics]/Other info:eu-repo/semantics/article Journal articles 2018 ftunifranchecom https://doi.org/10.1002/ldr.3099 2024-07-29T23:38:32Z International audience In the general context of global warming, the cryosphere appears as an environment that exhibits a strong sensitivity to climate variations. Overall, glacier systems are now known to be reliable indicators of climate trends. Although glacier dynamics are subject to international monitoring networks, periglacial environments are much less observed. However, these newly deglaciated areas get wider since glaciers are retreating, and their dynamics become increasingly significant. The observed increase in water fluxes, temperature and precipitation, permafrost melting, and reduced cold periods induce a combined control on modifications of the glacier and periglacial dynamics. Such consequences are also visible on the landscape, hinting at an adaptation of the environment to the climatic forcing.The work carried out focuses on Austre Lovénbreen area, a small 10‐km2 glacier basin (Svalbard, 78.87°N, 12.15°E, west coast of Spitsbergen) exhibiting typical arctic glacial retreat trends. Its geomorphological characteristics as well as its observatory status make it an appropriate control area. Our investigations are based on a combination of classical on‐site snow, ice, and geomorphological measurements, combined with innovative methods using aerial photography (e.g., from unmanned aerial systems) and digital photogrammetric image processing. Such data currently complement classical remote sensing methods (satellite imagery), providing both improved resolution and high temporal repeatability. Indeed, short acquisition time and flexibility allows measurements within very short time intervals, a requirement when short events are significant in the whole system evolution: The speed at which climatic change‐related events occur requires such fine‐grained spatial and temporal monitoring.This work highlights an increase of sediment transfers during the last decade that ties in with the increasing liquid precipitation as well as a trend of rising temperatures. The newly deglaciated area, particularly at ... Article in Journal/Newspaper glacier Global warming Ice permafrost Svalbard Spitsbergen Université de Franche-Comté (UFC): HAL Land Degradation & Development 29 10 3709 3720 |
institution |
Open Polar |
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Université de Franche-Comté (UFC): HAL |
op_collection_id |
ftunifranchecom |
language |
English |
topic |
[SPI.OTHER]Engineering Sciences [physics]/Other |
spellingShingle |
[SPI.OTHER]Engineering Sciences [physics]/Other Bernard, Eric Friedt, Jean Schiavone, Sophie Tolle, Florian Griselin, Madeleine Assessment of periglacial response to increased runoff: An Arctic hydrosystem bears witness |
topic_facet |
[SPI.OTHER]Engineering Sciences [physics]/Other |
description |
International audience In the general context of global warming, the cryosphere appears as an environment that exhibits a strong sensitivity to climate variations. Overall, glacier systems are now known to be reliable indicators of climate trends. Although glacier dynamics are subject to international monitoring networks, periglacial environments are much less observed. However, these newly deglaciated areas get wider since glaciers are retreating, and their dynamics become increasingly significant. The observed increase in water fluxes, temperature and precipitation, permafrost melting, and reduced cold periods induce a combined control on modifications of the glacier and periglacial dynamics. Such consequences are also visible on the landscape, hinting at an adaptation of the environment to the climatic forcing.The work carried out focuses on Austre Lovénbreen area, a small 10‐km2 glacier basin (Svalbard, 78.87°N, 12.15°E, west coast of Spitsbergen) exhibiting typical arctic glacial retreat trends. Its geomorphological characteristics as well as its observatory status make it an appropriate control area. Our investigations are based on a combination of classical on‐site snow, ice, and geomorphological measurements, combined with innovative methods using aerial photography (e.g., from unmanned aerial systems) and digital photogrammetric image processing. Such data currently complement classical remote sensing methods (satellite imagery), providing both improved resolution and high temporal repeatability. Indeed, short acquisition time and flexibility allows measurements within very short time intervals, a requirement when short events are significant in the whole system evolution: The speed at which climatic change‐related events occur requires such fine‐grained spatial and temporal monitoring.This work highlights an increase of sediment transfers during the last decade that ties in with the increasing liquid precipitation as well as a trend of rising temperatures. The newly deglaciated area, particularly at ... |
author2 |
Théoriser et modéliser pour aménager (UMR 6049) (ThéMA) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) 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) |
format |
Article in Journal/Newspaper |
author |
Bernard, Eric Friedt, Jean Schiavone, Sophie Tolle, Florian Griselin, Madeleine |
author_facet |
Bernard, Eric Friedt, Jean Schiavone, Sophie Tolle, Florian Griselin, Madeleine |
author_sort |
Bernard, Eric |
title |
Assessment of periglacial response to increased runoff: An Arctic hydrosystem bears witness |
title_short |
Assessment of periglacial response to increased runoff: An Arctic hydrosystem bears witness |
title_full |
Assessment of periglacial response to increased runoff: An Arctic hydrosystem bears witness |
title_fullStr |
Assessment of periglacial response to increased runoff: An Arctic hydrosystem bears witness |
title_full_unstemmed |
Assessment of periglacial response to increased runoff: An Arctic hydrosystem bears witness |
title_sort |
assessment of periglacial response to increased runoff: an arctic hydrosystem bears witness |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-02399275 https://hal.science/hal-02399275/document https://hal.science/hal-02399275/file/53b75d98-93aa-43e1-9aa3-02c935c98fd8-author.pdf https://doi.org/10.1002/ldr.3099 |
genre |
glacier Global warming Ice permafrost Svalbard Spitsbergen |
genre_facet |
glacier Global warming Ice permafrost Svalbard Spitsbergen |
op_source |
ISSN: 1085-3278 EISSN: 1099-145X Land Degradation and Development https://hal.science/hal-02399275 Land Degradation and Development, 2018, 29 (10), pp.3709 - 3720. ⟨10.1002/ldr.3099⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/ldr.3099 hal-02399275 https://hal.science/hal-02399275 https://hal.science/hal-02399275/document https://hal.science/hal-02399275/file/53b75d98-93aa-43e1-9aa3-02c935c98fd8-author.pdf doi:10.1002/ldr.3099 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/ldr.3099 |
container_title |
Land Degradation & Development |
container_volume |
29 |
container_issue |
10 |
container_start_page |
3709 |
op_container_end_page |
3720 |
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1810445314390228992 |