Figure 2: IP25 measurements and accumulation rates of sediment core PS2837-5
Sea ice is a critical component of the climate system: variations in sea-ice cover affect the albedo of polar regions, and also the rate of deepwater formation. Changes in the sea-ice cover of the North Atlantic Ocean are thought to have been related to abrupt climate changes throughout the last gla...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.728973 2024-06-23T07:54:50+00:00 Figure 2: IP25 measurements and accumulation rates of sediment core PS2837-5 Müller, Juliane Massé, Guillaume Stein, Ruediger Belt, Simon T LATITUDE: 81.233333 * LONGITUDE: 2.381667 * DATE/TIME START: 1997-07-12T11:22:00 * DATE/TIME END: 1997-07-12T11:22:00 * MINIMUM DEPTH, sediment/rock: 0.32 m * MAXIMUM DEPTH, sediment/rock: 4.53 m 2009 text/tab-separated-values, 248 data points https://doi.pangaea.de/10.1594/PANGAEA.728973 https://doi.org/10.1594/PANGAEA.728973 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.728973 https://doi.org/10.1594/PANGAEA.728973 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Müller, Juliane; Massé, Guillaume; Stein, Ruediger; Belt, Simon T (2009): Variability of sea-ice conditions in the Fram Strait over the past 30,000 years. Nature Geoscience, 2, 772-227, https://doi.org/10.1038/ngeo665 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment mass Accumulation rate 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane AGE ARK-XIII/2 AWI_Paleo Calculated DEPTH sediment/rock Gas chromatography - Mass spectrometry (GC-MS) Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK KAL Kasten corer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS2837-5 PS44 PS44/065 Yermak Plateau Dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.72897310.1038/ngeo665 2024-06-04T23:51:55Z Sea ice is a critical component of the climate system: variations in sea-ice cover affect the albedo of polar regions, and also the rate of deepwater formation. Changes in the sea-ice cover of the North Atlantic Ocean are thought to have been related to abrupt climate changes throughout the last glacial termination, but reconstructions of sea-ice conditions are rare. Here we use the sedimentary abundance of the IP25 and brassicasterol biomarkers, produced by sea-ice-associated diatoms and open-water phytoplankton, respectively, to generate a record of sea-ice conditions in the northernmost Atlantic Ocean for the past 30,000 years. Our reconstruction shows that a stationary margin between sea-ice cover and the open ocean existed during the Last Glacial, although perennial sea-ice cover prevailed for most of the Last Glacial Maximum. An early warming about 14,000 years ago was associated with ice-free conditions; however, seasonal sea ice was present throughout the Holocene. We find temporal links between our record of sea ice and reconstructions of the amount of relatively warm Atlantic water advected into the Nordic Seas. We therefore conclude that changes in sea-ice conditions are linked to regional and global climate anomalies and oceanographic circulation in the North Atlantic. Dataset Nordic Seas North Atlantic Sea ice Yermak plateau PANGAEA - Data Publisher for Earth & Environmental Science Yermak Plateau ENVELOPE(5.000,5.000,81.250,81.250) ENVELOPE(2.381667,2.381667,81.233333,81.233333) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment mass Accumulation rate 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane AGE ARK-XIII/2 AWI_Paleo Calculated DEPTH sediment/rock Gas chromatography - Mass spectrometry (GC-MS) Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK KAL Kasten corer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS2837-5 PS44 PS44/065 Yermak Plateau |
spellingShingle |
2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment mass Accumulation rate 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane AGE ARK-XIII/2 AWI_Paleo Calculated DEPTH sediment/rock Gas chromatography - Mass spectrometry (GC-MS) Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK KAL Kasten corer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS2837-5 PS44 PS44/065 Yermak Plateau Müller, Juliane Massé, Guillaume Stein, Ruediger Belt, Simon T Figure 2: IP25 measurements and accumulation rates of sediment core PS2837-5 |
topic_facet |
2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment mass Accumulation rate 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane AGE ARK-XIII/2 AWI_Paleo Calculated DEPTH sediment/rock Gas chromatography - Mass spectrometry (GC-MS) Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK KAL Kasten corer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS2837-5 PS44 PS44/065 Yermak Plateau |
description |
Sea ice is a critical component of the climate system: variations in sea-ice cover affect the albedo of polar regions, and also the rate of deepwater formation. Changes in the sea-ice cover of the North Atlantic Ocean are thought to have been related to abrupt climate changes throughout the last glacial termination, but reconstructions of sea-ice conditions are rare. Here we use the sedimentary abundance of the IP25 and brassicasterol biomarkers, produced by sea-ice-associated diatoms and open-water phytoplankton, respectively, to generate a record of sea-ice conditions in the northernmost Atlantic Ocean for the past 30,000 years. Our reconstruction shows that a stationary margin between sea-ice cover and the open ocean existed during the Last Glacial, although perennial sea-ice cover prevailed for most of the Last Glacial Maximum. An early warming about 14,000 years ago was associated with ice-free conditions; however, seasonal sea ice was present throughout the Holocene. We find temporal links between our record of sea ice and reconstructions of the amount of relatively warm Atlantic water advected into the Nordic Seas. We therefore conclude that changes in sea-ice conditions are linked to regional and global climate anomalies and oceanographic circulation in the North Atlantic. |
format |
Dataset |
author |
Müller, Juliane Massé, Guillaume Stein, Ruediger Belt, Simon T |
author_facet |
Müller, Juliane Massé, Guillaume Stein, Ruediger Belt, Simon T |
author_sort |
Müller, Juliane |
title |
Figure 2: IP25 measurements and accumulation rates of sediment core PS2837-5 |
title_short |
Figure 2: IP25 measurements and accumulation rates of sediment core PS2837-5 |
title_full |
Figure 2: IP25 measurements and accumulation rates of sediment core PS2837-5 |
title_fullStr |
Figure 2: IP25 measurements and accumulation rates of sediment core PS2837-5 |
title_full_unstemmed |
Figure 2: IP25 measurements and accumulation rates of sediment core PS2837-5 |
title_sort |
figure 2: ip25 measurements and accumulation rates of sediment core ps2837-5 |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.728973 https://doi.org/10.1594/PANGAEA.728973 |
op_coverage |
LATITUDE: 81.233333 * LONGITUDE: 2.381667 * DATE/TIME START: 1997-07-12T11:22:00 * DATE/TIME END: 1997-07-12T11:22:00 * MINIMUM DEPTH, sediment/rock: 0.32 m * MAXIMUM DEPTH, sediment/rock: 4.53 m |
long_lat |
ENVELOPE(5.000,5.000,81.250,81.250) ENVELOPE(2.381667,2.381667,81.233333,81.233333) |
geographic |
Yermak Plateau |
geographic_facet |
Yermak Plateau |
genre |
Nordic Seas North Atlantic Sea ice Yermak plateau |
genre_facet |
Nordic Seas North Atlantic Sea ice Yermak plateau |
op_source |
Supplement to: Müller, Juliane; Massé, Guillaume; Stein, Ruediger; Belt, Simon T (2009): Variability of sea-ice conditions in the Fram Strait over the past 30,000 years. Nature Geoscience, 2, 772-227, https://doi.org/10.1038/ngeo665 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.728973 https://doi.org/10.1594/PANGAEA.728973 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.72897310.1038/ngeo665 |
_version_ |
1802647114547724288 |