Holocene changes in sea-ice cover and polynya formation along the eastern North Greenland shelf: New insights from biomarker records
Understanding the processes controlling the natural variability of sea ice in the Arctic, one of the most dynamic components of the climate system, can help to constrain the effects of future climate change in this highly sensitive area. For the first time, a high-resolution biomarker study was carr...
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ftsubbremen:oai:media.suub.uni-bremen.de:Publications/elib/4538 2023-05-15T15:08:21+02:00 Holocene changes in sea-ice cover and polynya formation along the eastern North Greenland shelf: New insights from biomarker records Syring, Nicole Stein, Ruediger Fahl, Kirsten Vahlenkamp, Maximilian Zehnich, Marc Spielhagen, Robert Niessen, Frank 2020-01-30 application/pdf https://media.suub.uni-bremen.de/handle/elib/4538 https://doi.org/10.26092/elib/335 https://nbn-resolving.org/urn:nbn:de:gbv:46-elib45389 eng eng Fachbereich 05: Geowissenschaften (FB 05) Alfred-Wegener Institut Quaternary Science Reviews 10.1016/j.quascirev.2020.106173 0277-3791 https://media.suub.uni-bremen.de/handle/elib/4538 http://dx.doi.org/10.26092/elib/335 doi:10.26092/elib/335 urn:nbn:de:gbv:46-elib45389 info:eu-repo/semantics/openAccess Attribution 3.0 Germany http://creativecommons.org/licenses/by/3.0/de/ CC-BY Sea ice Biomarker Northeast Water Polynya Northeast Greenland 550 550 Earth sciences and geology ddc:550 Artikel/Aufsatz 2020 ftsubbremen https://doi.org/10.26092/elib/335 2022-12-18T23:09:13Z Understanding the processes controlling the natural variability of sea ice in the Arctic, one of the most dynamic components of the climate system, can help to constrain the effects of future climate change in this highly sensitive area. For the first time, a high-resolution biomarker study was carried out to reconstruct past sea-ice variability off eastern North Greenland. This area is strongly influenced by cold surface waters and drift ice transported via the East Greenland Current, meltwater pulses from the outlet glaciers of the Northeast Greenland Ice Stream and the build-up of landfast ice. The well-dated Holocene sedimentary section of Core PS93/025 provides insights into variations of the sea-ice conditions (regional and local sea-ice signal), oceanic and atmospheric circulation and the biotic response to these changes. These biomarker records show a reduced to variable sea-ice cover during the early Holocene between 10.2 and 9.3 ka, followed by a steady increase in sea-ice conditions during the mid Holocene. During the last 5e6 ka, sea-ice conditions remained more stable representing a seasonal to marginal sea-ice situ- ation. Based on our biomarker records, stable sea-ice edge conditions, with a fully developed polynya situation occurred since the last 1 ka. 1 16 231 Other/Unknown Material Arctic Climate change East Greenland east greenland current Greenland North Greenland Sea ice Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) Arctic Greenland |
institution |
Open Polar |
collection |
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
op_collection_id |
ftsubbremen |
language |
English |
topic |
Sea ice Biomarker Northeast Water Polynya Northeast Greenland 550 550 Earth sciences and geology ddc:550 |
spellingShingle |
Sea ice Biomarker Northeast Water Polynya Northeast Greenland 550 550 Earth sciences and geology ddc:550 Syring, Nicole Stein, Ruediger Fahl, Kirsten Vahlenkamp, Maximilian Zehnich, Marc Spielhagen, Robert Niessen, Frank Holocene changes in sea-ice cover and polynya formation along the eastern North Greenland shelf: New insights from biomarker records |
topic_facet |
Sea ice Biomarker Northeast Water Polynya Northeast Greenland 550 550 Earth sciences and geology ddc:550 |
description |
Understanding the processes controlling the natural variability of sea ice in the Arctic, one of the most dynamic components of the climate system, can help to constrain the effects of future climate change in this highly sensitive area. For the first time, a high-resolution biomarker study was carried out to reconstruct past sea-ice variability off eastern North Greenland. This area is strongly influenced by cold surface waters and drift ice transported via the East Greenland Current, meltwater pulses from the outlet glaciers of the Northeast Greenland Ice Stream and the build-up of landfast ice. The well-dated Holocene sedimentary section of Core PS93/025 provides insights into variations of the sea-ice conditions (regional and local sea-ice signal), oceanic and atmospheric circulation and the biotic response to these changes. These biomarker records show a reduced to variable sea-ice cover during the early Holocene between 10.2 and 9.3 ka, followed by a steady increase in sea-ice conditions during the mid Holocene. During the last 5e6 ka, sea-ice conditions remained more stable representing a seasonal to marginal sea-ice situ- ation. Based on our biomarker records, stable sea-ice edge conditions, with a fully developed polynya situation occurred since the last 1 ka. 1 16 231 |
format |
Other/Unknown Material |
author |
Syring, Nicole Stein, Ruediger Fahl, Kirsten Vahlenkamp, Maximilian Zehnich, Marc Spielhagen, Robert Niessen, Frank |
author_facet |
Syring, Nicole Stein, Ruediger Fahl, Kirsten Vahlenkamp, Maximilian Zehnich, Marc Spielhagen, Robert Niessen, Frank |
author_sort |
Syring, Nicole |
title |
Holocene changes in sea-ice cover and polynya formation along the eastern North Greenland shelf: New insights from biomarker records |
title_short |
Holocene changes in sea-ice cover and polynya formation along the eastern North Greenland shelf: New insights from biomarker records |
title_full |
Holocene changes in sea-ice cover and polynya formation along the eastern North Greenland shelf: New insights from biomarker records |
title_fullStr |
Holocene changes in sea-ice cover and polynya formation along the eastern North Greenland shelf: New insights from biomarker records |
title_full_unstemmed |
Holocene changes in sea-ice cover and polynya formation along the eastern North Greenland shelf: New insights from biomarker records |
title_sort |
holocene changes in sea-ice cover and polynya formation along the eastern north greenland shelf: new insights from biomarker records |
publisher |
Fachbereich 05: Geowissenschaften (FB 05) |
publishDate |
2020 |
url |
https://media.suub.uni-bremen.de/handle/elib/4538 https://doi.org/10.26092/elib/335 https://nbn-resolving.org/urn:nbn:de:gbv:46-elib45389 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Climate change East Greenland east greenland current Greenland North Greenland Sea ice |
genre_facet |
Arctic Climate change East Greenland east greenland current Greenland North Greenland Sea ice |
op_relation |
Quaternary Science Reviews 10.1016/j.quascirev.2020.106173 0277-3791 https://media.suub.uni-bremen.de/handle/elib/4538 http://dx.doi.org/10.26092/elib/335 doi:10.26092/elib/335 urn:nbn:de:gbv:46-elib45389 |
op_rights |
info:eu-repo/semantics/openAccess Attribution 3.0 Germany http://creativecommons.org/licenses/by/3.0/de/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.26092/elib/335 |
_version_ |
1766339734274048000 |