Investigating the interaction between ocean current variability and glacier activity by Thrym glacier, SE-Greenland
International audience Heat transport via ocean currents can have a crucial impact on the melting of marine terminating glaciers in Greenland. To investigate the influence of ocean temperature changes on the glaciodynamics of Thrym glacier over longer timescales we present a marine sediment record f...
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Format: | Conference Object |
Language: | English |
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HAL CCSD
2018
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Online Access: | https://hal.science/hal-03503485 |
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ftunivnantes:oai:HAL:hal-03503485v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Wangner, David J. Kjeldsen, Kristian K. Sicre, Marie-Alexandrine Jaeger, John M. Klein, Vincent Vermassen, Flor Kjær, Kurt H. Andresen, Camilla S. Investigating the interaction between ocean current variability and glacier activity by Thrym glacier, SE-Greenland |
topic_facet |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Heat transport via ocean currents can have a crucial impact on the melting of marine terminating glaciers in Greenland. To investigate the influence of ocean temperature changes on the glaciodynamics of Thrym glacier over longer timescales we present a marine sediment record from the Skjoldungen fjord by Thrym Glacier in SE Greenland. 210Pb-dating combined with a radiocarbon date reveals that the core covers the past 220 years from 1790 AD until 2011 AD. High-resolution grainsize analyses representing the calving activity of Thrym glacier and sea surface temperature (SST) derived from alkenones were conducted. During the investigated timespan, the alkenone based SSTs vary between 5 and 12 ◦C. The high temperatures, in comparison with present SST in thefjord of 0-2 degree Celsius, indicate, in similarity with other alkenone reconstructions from SE Greenland, that the alkenones were produced further off shore in the Irminger Sea and advected with the inflow of surface waters into the fjord. We compare this record of Irminger SST variability with the reconstructed calving activity and furthermore with other similar studies in SE- Greenland. This will help to understand the regional sensitivity ofGreenland Ice Sheet (GIS) melt resulting from heat transport associated with the subpolar gyre circulation and aid in our understanding of the future behavior of the GIS under a warming climate |
author2 |
Geological Survey of Denmark and Greenland (GEUS) Natural History Museum of Denmark Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) Variabilité de l'Océan et de la Glace de mer (VOG) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
format |
Conference Object |
author |
Wangner, David J. Kjeldsen, Kristian K. Sicre, Marie-Alexandrine Jaeger, John M. Klein, Vincent Vermassen, Flor Kjær, Kurt H. Andresen, Camilla S. |
author_facet |
Wangner, David J. Kjeldsen, Kristian K. Sicre, Marie-Alexandrine Jaeger, John M. Klein, Vincent Vermassen, Flor Kjær, Kurt H. Andresen, Camilla S. |
author_sort |
Wangner, David J. |
title |
Investigating the interaction between ocean current variability and glacier activity by Thrym glacier, SE-Greenland |
title_short |
Investigating the interaction between ocean current variability and glacier activity by Thrym glacier, SE-Greenland |
title_full |
Investigating the interaction between ocean current variability and glacier activity by Thrym glacier, SE-Greenland |
title_fullStr |
Investigating the interaction between ocean current variability and glacier activity by Thrym glacier, SE-Greenland |
title_full_unstemmed |
Investigating the interaction between ocean current variability and glacier activity by Thrym glacier, SE-Greenland |
title_sort |
investigating the interaction between ocean current variability and glacier activity by thrym glacier, se-greenland |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-03503485 |
op_coverage |
Vienne, Austria |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) ENVELOPE(-41.403,-41.403,63.220,63.220) |
geographic |
Greenland Irminger Sea Skjoldungen |
geographic_facet |
Greenland Irminger Sea Skjoldungen |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_source |
EGU 2018 https://hal.science/hal-03503485 EGU 2018, 2018, Vienne, Austria |
op_relation |
hal-03503485 https://hal.science/hal-03503485 |
_version_ |
1766008924717187072 |
spelling |
ftunivnantes:oai:HAL:hal-03503485v1 2023-05-15T16:20:54+02:00 Investigating the interaction between ocean current variability and glacier activity by Thrym glacier, SE-Greenland Wangner, David J. Kjeldsen, Kristian K. Sicre, Marie-Alexandrine Jaeger, John M. Klein, Vincent Vermassen, Flor Kjær, Kurt H. Andresen, Camilla S. Geological Survey of Denmark and Greenland (GEUS) Natural History Museum of Denmark Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) Variabilité de l'Océan et de la Glace de mer (VOG) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Vienne, Austria 2018 https://hal.science/hal-03503485 en eng HAL CCSD hal-03503485 https://hal.science/hal-03503485 EGU 2018 https://hal.science/hal-03503485 EGU 2018, 2018, Vienne, Austria [SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/conferenceObject Conference papers 2018 ftunivnantes 2023-03-08T02:17:00Z International audience Heat transport via ocean currents can have a crucial impact on the melting of marine terminating glaciers in Greenland. To investigate the influence of ocean temperature changes on the glaciodynamics of Thrym glacier over longer timescales we present a marine sediment record from the Skjoldungen fjord by Thrym Glacier in SE Greenland. 210Pb-dating combined with a radiocarbon date reveals that the core covers the past 220 years from 1790 AD until 2011 AD. High-resolution grainsize analyses representing the calving activity of Thrym glacier and sea surface temperature (SST) derived from alkenones were conducted. During the investigated timespan, the alkenone based SSTs vary between 5 and 12 ◦C. The high temperatures, in comparison with present SST in thefjord of 0-2 degree Celsius, indicate, in similarity with other alkenone reconstructions from SE Greenland, that the alkenones were produced further off shore in the Irminger Sea and advected with the inflow of surface waters into the fjord. We compare this record of Irminger SST variability with the reconstructed calving activity and furthermore with other similar studies in SE- Greenland. This will help to understand the regional sensitivity ofGreenland Ice Sheet (GIS) melt resulting from heat transport associated with the subpolar gyre circulation and aid in our understanding of the future behavior of the GIS under a warming climate Conference Object glacier Greenland Ice Sheet Université de Nantes: HAL-UNIV-NANTES Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Skjoldungen ENVELOPE(-41.403,-41.403,63.220,63.220) |