Mid to Late Holocene evolution of sea ice distribution and primary production on the East Greenland Shelf and the NW Fram Strait
Over the last decades, the extent and thickness of Arctic sea ice has changed dramatically and much more rapidly than predicted by climate models. Based on this alarming observation, the reconstruction of natural variability of past sea-ice cover and its forcing became a major focus of international...
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ftawi:oai:epic.awi.de:39696 2024-09-15T18:04:13+00:00 Mid to Late Holocene evolution of sea ice distribution and primary production on the East Greenland Shelf and the NW Fram Strait Kolling, Henriette Stein, Rüdiger Fahl, Kirsten 2015-05 https://epic.awi.de/id/eprint/39696/ https://hdl.handle.net/10013/epic.46839 unknown Kolling, H. , Stein, R. orcid:0000-0002-4453-9564 and Fahl, K. orcid:0000-0001-9317-4656 (2015) Mid to Late Holocene evolution of sea ice distribution and primary production on the East Greenland Shelf and the NW Fram Strait , PAST Gateways conference 2015, Potsdam, 18 May 2015 - 22 May 2015 . hdl:10013/epic.46839 EPIC3PAST Gateways conference 2015, Potsdam, 2015-05-18-2015-05-22 Conference notRev 2015 ftawi 2024-06-24T04:13:16Z Over the last decades, the extent and thickness of Arctic sea ice has changed dramatically and much more rapidly than predicted by climate models. Based on this alarming observation, the reconstruction of natural variability of past sea-ice cover and its forcing became a major focus of international scientific research. Here, we present a high-resolution biomarker approach over the last 4 ka from the East Greenland Shelf to investigate the interrelationship between sea-ice cover, meltwater/freshwater discharge and primary productivity. The phytoplankton-derived sea-ice proxy IP25 (Belt et al., 2007) points to a late Holocene cooling trend initiated around 1.5 ka which is interrupted by a period of reduced sea-ice cover centred around 1 ka. The latter might be related to the well known Medieval Warm Period. Our new results from the East Greenland Shelf will be compared with similar records from the Fram Strait area published by Müller et al., (2012). These data give information about differences and/or similarities of sea-ice variability and changes in productivity in the area influenced by the cold East Greenland Current and the warm Westspitsbergen Current, respectively. First data suggest a time lag of the Neoglacial cooling between western (Greenland side) and eastern (Westspitsbergen-side) of Fram Strait, as also proposed by Müller et al. (2012). References Belt., S.T., Massé, G., Rowland, S.J., Poulin, M., Michel, C., LeBlanc, B., 2007. A novel chemical fossil of paleo sea ice: IP25. Organic Geochemistry 38, 16-27 Müller, J., Werner, K., Stein, R., Fahl, K., Moros, M., Jansen, E., 2012. Holocene cooling culminates in sea ice oscillations in Fram Strait. Quaternay Science Reviews 47, 1-14 Conference Object East Greenland east greenland current Fram Strait Greenland Phytoplankton Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Over the last decades, the extent and thickness of Arctic sea ice has changed dramatically and much more rapidly than predicted by climate models. Based on this alarming observation, the reconstruction of natural variability of past sea-ice cover and its forcing became a major focus of international scientific research. Here, we present a high-resolution biomarker approach over the last 4 ka from the East Greenland Shelf to investigate the interrelationship between sea-ice cover, meltwater/freshwater discharge and primary productivity. The phytoplankton-derived sea-ice proxy IP25 (Belt et al., 2007) points to a late Holocene cooling trend initiated around 1.5 ka which is interrupted by a period of reduced sea-ice cover centred around 1 ka. The latter might be related to the well known Medieval Warm Period. Our new results from the East Greenland Shelf will be compared with similar records from the Fram Strait area published by Müller et al., (2012). These data give information about differences and/or similarities of sea-ice variability and changes in productivity in the area influenced by the cold East Greenland Current and the warm Westspitsbergen Current, respectively. First data suggest a time lag of the Neoglacial cooling between western (Greenland side) and eastern (Westspitsbergen-side) of Fram Strait, as also proposed by Müller et al. (2012). References Belt., S.T., Massé, G., Rowland, S.J., Poulin, M., Michel, C., LeBlanc, B., 2007. A novel chemical fossil of paleo sea ice: IP25. Organic Geochemistry 38, 16-27 Müller, J., Werner, K., Stein, R., Fahl, K., Moros, M., Jansen, E., 2012. Holocene cooling culminates in sea ice oscillations in Fram Strait. Quaternay Science Reviews 47, 1-14 |
format |
Conference Object |
author |
Kolling, Henriette Stein, Rüdiger Fahl, Kirsten |
spellingShingle |
Kolling, Henriette Stein, Rüdiger Fahl, Kirsten Mid to Late Holocene evolution of sea ice distribution and primary production on the East Greenland Shelf and the NW Fram Strait |
author_facet |
Kolling, Henriette Stein, Rüdiger Fahl, Kirsten |
author_sort |
Kolling, Henriette |
title |
Mid to Late Holocene evolution of sea ice distribution and primary production on the East Greenland Shelf and the NW Fram Strait |
title_short |
Mid to Late Holocene evolution of sea ice distribution and primary production on the East Greenland Shelf and the NW Fram Strait |
title_full |
Mid to Late Holocene evolution of sea ice distribution and primary production on the East Greenland Shelf and the NW Fram Strait |
title_fullStr |
Mid to Late Holocene evolution of sea ice distribution and primary production on the East Greenland Shelf and the NW Fram Strait |
title_full_unstemmed |
Mid to Late Holocene evolution of sea ice distribution and primary production on the East Greenland Shelf and the NW Fram Strait |
title_sort |
mid to late holocene evolution of sea ice distribution and primary production on the east greenland shelf and the nw fram strait |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/39696/ https://hdl.handle.net/10013/epic.46839 |
genre |
East Greenland east greenland current Fram Strait Greenland Phytoplankton Sea ice |
genre_facet |
East Greenland east greenland current Fram Strait Greenland Phytoplankton Sea ice |
op_source |
EPIC3PAST Gateways conference 2015, Potsdam, 2015-05-18-2015-05-22 |
op_relation |
Kolling, H. , Stein, R. orcid:0000-0002-4453-9564 and Fahl, K. orcid:0000-0001-9317-4656 (2015) Mid to Late Holocene evolution of sea ice distribution and primary production on the East Greenland Shelf and the NW Fram Strait , PAST Gateways conference 2015, Potsdam, 18 May 2015 - 22 May 2015 . hdl:10013/epic.46839 |
_version_ |
1810441710330707968 |