High-Resolution Reconstruction of Late Holocene 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...
Main Authors: | , , |
---|---|
Format: | Conference Object |
Language: | unknown |
Published: |
2014
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/39694/ https://hdl.handle.net/10013/epic.46837 |
id |
ftawi:oai:epic.awi.de:39694 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:39694 2023-05-15T15:12:11+02:00 High-Resolution Reconstruction of Late Holocene Sea-ice Distribution and Primary Production on the East Greenland Shelf and the NW Fram Strait. Kolling, Henriette Stein, Rüdiger Fahl, Kirsten 2014-12-16 https://epic.awi.de/id/eprint/39694/ https://hdl.handle.net/10013/epic.46837 unknown Kolling, H. , Stein, R. orcid:0000-0002-4453-9564 and Fahl, K. orcid:0000-0001-9317-4656 (2014) High-Resolution Reconstruction of Late Holocene Sea-ice Distribution and Primary Production on the East Greenland Shelf and the NW Fram Strait. , AGU Fall Meeting, San Francisco, 15 December 2014 - 19 December 2014 . hdl:10013/epic.46837 EPIC3AGU Fall Meeting, San Francisco, 2014-12-15-2014-12-19 Conference notRev 2014 ftawi 2021-12-24T15:41:08Z 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 Arctic 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) Arctic Greenland LeBlanc ENVELOPE(-98.767,-98.767,-71.733,-71.733) Rowland ENVELOPE(161.700,161.700,-77.213,-77.213) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
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 High-Resolution Reconstruction of Late Holocene 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 |
High-Resolution Reconstruction of Late Holocene Sea-ice Distribution and Primary Production on the East Greenland Shelf and the NW Fram Strait. |
title_short |
High-Resolution Reconstruction of Late Holocene Sea-ice Distribution and Primary Production on the East Greenland Shelf and the NW Fram Strait. |
title_full |
High-Resolution Reconstruction of Late Holocene Sea-ice Distribution and Primary Production on the East Greenland Shelf and the NW Fram Strait. |
title_fullStr |
High-Resolution Reconstruction of Late Holocene Sea-ice Distribution and Primary Production on the East Greenland Shelf and the NW Fram Strait. |
title_full_unstemmed |
High-Resolution Reconstruction of Late Holocene Sea-ice Distribution and Primary Production on the East Greenland Shelf and the NW Fram Strait. |
title_sort |
high-resolution reconstruction of late holocene sea-ice distribution and primary production on the east greenland shelf and the nw fram strait. |
publishDate |
2014 |
url |
https://epic.awi.de/id/eprint/39694/ https://hdl.handle.net/10013/epic.46837 |
long_lat |
ENVELOPE(-98.767,-98.767,-71.733,-71.733) ENVELOPE(161.700,161.700,-77.213,-77.213) |
geographic |
Arctic Greenland LeBlanc Rowland |
geographic_facet |
Arctic Greenland LeBlanc Rowland |
genre |
Arctic East Greenland east greenland current Fram Strait Greenland Phytoplankton Sea ice |
genre_facet |
Arctic East Greenland east greenland current Fram Strait Greenland Phytoplankton Sea ice |
op_source |
EPIC3AGU Fall Meeting, San Francisco, 2014-12-15-2014-12-19 |
op_relation |
Kolling, H. , Stein, R. orcid:0000-0002-4453-9564 and Fahl, K. orcid:0000-0001-9317-4656 (2014) High-Resolution Reconstruction of Late Holocene Sea-ice Distribution and Primary Production on the East Greenland Shelf and the NW Fram Strait. , AGU Fall Meeting, San Francisco, 15 December 2014 - 19 December 2014 . hdl:10013/epic.46837 |
_version_ |
1766342903994515456 |