Quantification of sediment transport into Kongsfjorden due to the glacier melt dynamics of Austre Lovenbreen using terrestrial laser scanning
International audience Climate warming causes a decrease of glaciers in Svalbard. This results in sig-nificant changes of the geomorphology of areas in glacier catchments where iceand permafrost is melting. In particular the snout of the glacier melts drasticallyand the water outflow of the glacier...
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2018
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fttriple:oai:gotriple.eu:10670/1.17sdgb 2023-05-15T14:19:59+02:00 Quantification of sediment transport into Kongsfjorden due to the glacier melt dynamics of Austre Lovenbreen using terrestrial laser scanning Prokop, Alexander Tolle, Florian Bernard, Eric Friedt, Jean Michel The University Centre in Svalbard (UNIS) Théoriser et modéliser pour aménager (UMR 6049) (ThéMA) Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB) 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)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC)-Centre National de la Recherche Scientifique (CNRS) International Arctic Science Committee Obergurgl, Austria 2018-01-22 https://hal.archives-ouvertes.fr/hal-01962668 en eng HAL CCSD hal-01962668 10670/1.17sdgb https://hal.archives-ouvertes.fr/hal-01962668 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société IASC Network on Arctic Glaciology IASC Network on Arctic Glaciology, International Arctic Science Committee, Jan 2018, Obergurgl, Austria Glacier Arctic Spitzberg climate geo envir Conference Output https://vocabularies.coar-repositories.org/resource_types/c_c94f/ 2018 fttriple 2023-01-22T16:42:07Z International audience Climate warming causes a decrease of glaciers in Svalbard. This results in sig-nificant changes of the geomorphology of areas in glacier catchments where iceand permafrost is melting. In particular the snout of the glacier melts drasticallyand the water outflow of the glacier changes sometimes its direction. Sedimentand bed load transport forms new river beds in the moraine, and the sedimentsinvolved are transported downstream into the fjords. In recent years terrestriallaser scanning technology has developed significantly, so it is possible to mea-sure the surface of a whole glacier catchment such as the Austre Lovenbreen inhigh resolution just in a few days or even in one day. The measuring range of6000 m combined with a very low beam divergence of the laser beam allows fastand accurate measurements of an area of 4 km2just from one scan position. Thisadvances made it possible that we could track all surface changes via differenti-ating digital surface models of the Austre Lovenbreen catchment using repeatedterrestrial laser scanning surveys in 20 cm resolution and with 10 cm accuracy.In this work we show how the geomorphology of the scanned area changed injust 2 years from 2016 to 2017. In this time frame the glacier outflow changedits riverbed and significant amounts of sediments where transported through themoraine into the fjord, which changed the morphology of the coastline as well.Reflectance values of the laser allowed us to distinguish between snow, ice androck material. In our presentation we explain the methodology of the terrestriallaser scanning surveys and discuss the results of how much material was removedin the new river bed throughout the moraine, how much sediments where accu-mulated at the coast line and how much of the material disappeared in the fjord. Other/Unknown Material Arctic Arctic glacier Ice Kongsfjord* Kongsfjorden permafrost Spitzberg Svalbard Unknown Arctic Svalbard |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Glacier Arctic Spitzberg climate geo envir |
spellingShingle |
Glacier Arctic Spitzberg climate geo envir Prokop, Alexander Tolle, Florian Bernard, Eric Friedt, Jean Michel Quantification of sediment transport into Kongsfjorden due to the glacier melt dynamics of Austre Lovenbreen using terrestrial laser scanning |
topic_facet |
Glacier Arctic Spitzberg climate geo envir |
description |
International audience Climate warming causes a decrease of glaciers in Svalbard. This results in sig-nificant changes of the geomorphology of areas in glacier catchments where iceand permafrost is melting. In particular the snout of the glacier melts drasticallyand the water outflow of the glacier changes sometimes its direction. Sedimentand bed load transport forms new river beds in the moraine, and the sedimentsinvolved are transported downstream into the fjords. In recent years terrestriallaser scanning technology has developed significantly, so it is possible to mea-sure the surface of a whole glacier catchment such as the Austre Lovenbreen inhigh resolution just in a few days or even in one day. The measuring range of6000 m combined with a very low beam divergence of the laser beam allows fastand accurate measurements of an area of 4 km2just from one scan position. Thisadvances made it possible that we could track all surface changes via differenti-ating digital surface models of the Austre Lovenbreen catchment using repeatedterrestrial laser scanning surveys in 20 cm resolution and with 10 cm accuracy.In this work we show how the geomorphology of the scanned area changed injust 2 years from 2016 to 2017. In this time frame the glacier outflow changedits riverbed and significant amounts of sediments where transported through themoraine into the fjord, which changed the morphology of the coastline as well.Reflectance values of the laser allowed us to distinguish between snow, ice androck material. In our presentation we explain the methodology of the terrestriallaser scanning surveys and discuss the results of how much material was removedin the new river bed throughout the moraine, how much sediments where accu-mulated at the coast line and how much of the material disappeared in the fjord. |
author2 |
The University Centre in Svalbard (UNIS) Théoriser et modéliser pour aménager (UMR 6049) (ThéMA) Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB) 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)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC)-Centre National de la Recherche Scientifique (CNRS) International Arctic Science Committee |
format |
Other/Unknown Material |
author |
Prokop, Alexander Tolle, Florian Bernard, Eric Friedt, Jean Michel |
author_facet |
Prokop, Alexander Tolle, Florian Bernard, Eric Friedt, Jean Michel |
author_sort |
Prokop, Alexander |
title |
Quantification of sediment transport into Kongsfjorden due to the glacier melt dynamics of Austre Lovenbreen using terrestrial laser scanning |
title_short |
Quantification of sediment transport into Kongsfjorden due to the glacier melt dynamics of Austre Lovenbreen using terrestrial laser scanning |
title_full |
Quantification of sediment transport into Kongsfjorden due to the glacier melt dynamics of Austre Lovenbreen using terrestrial laser scanning |
title_fullStr |
Quantification of sediment transport into Kongsfjorden due to the glacier melt dynamics of Austre Lovenbreen using terrestrial laser scanning |
title_full_unstemmed |
Quantification of sediment transport into Kongsfjorden due to the glacier melt dynamics of Austre Lovenbreen using terrestrial laser scanning |
title_sort |
quantification of sediment transport into kongsfjorden due to the glacier melt dynamics of austre lovenbreen using terrestrial laser scanning |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.archives-ouvertes.fr/hal-01962668 |
op_coverage |
Obergurgl, Austria |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Arctic glacier Ice Kongsfjord* Kongsfjorden permafrost Spitzberg Svalbard |
genre_facet |
Arctic Arctic glacier Ice Kongsfjord* Kongsfjorden permafrost Spitzberg Svalbard |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société IASC Network on Arctic Glaciology IASC Network on Arctic Glaciology, International Arctic Science Committee, Jan 2018, Obergurgl, Austria |
op_relation |
hal-01962668 10670/1.17sdgb https://hal.archives-ouvertes.fr/hal-01962668 |
op_rights |
undefined |
_version_ |
1766291720717205504 |