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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ftdatacite:10.1594/pangaea.728973 2023-10-01T03:58:01+02:00 Figure 2: IP25 measurements and accumulation rates of sediment core PS2837-5 ... Müller, Juliane Massé, Guillaume Stein, Ruediger Belt, Simon T 2009 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.728973 https://doi.pangaea.de/10.1594/PANGAEA.728973 en eng PANGAEA https://dx.doi.org/10.1038/ngeo665 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 DEPTH, sediment/rock AGE 2,6,10,14-Tetramethyl-7-3-methylpent-4-enylpentadecane per unit sediment mass Accumulation rate, 2,6,10,14-Tetramethyl-7-3-methylpent-4-enylpentadecane Kasten corer Gas chromatography - Mass spectrometry GC-MS Calculated ARK-XIII/2 Polarstern Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Dataset Supplementary Dataset dataset 2009 ftdatacite https://doi.org/10.1594/pangaea.72897310.1038/ngeo665 2023-09-04T14:52:34Z 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 ... : For further details on the age model of the core and specific organic geochemical data (brassicasterol and total organic carbon content) we refer to the data set entry by Birgel and Hass, 2004, doi:10.1594/PANGAEA.728974. See doi:10.1594/PANGAEA.56094 for the GISP2 oxygen isotope data (Grootes et al, 1993). ... Dataset North Atlantic Sea ice DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
DEPTH, sediment/rock AGE 2,6,10,14-Tetramethyl-7-3-methylpent-4-enylpentadecane per unit sediment mass Accumulation rate, 2,6,10,14-Tetramethyl-7-3-methylpent-4-enylpentadecane Kasten corer Gas chromatography - Mass spectrometry GC-MS Calculated ARK-XIII/2 Polarstern Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
spellingShingle |
DEPTH, sediment/rock AGE 2,6,10,14-Tetramethyl-7-3-methylpent-4-enylpentadecane per unit sediment mass Accumulation rate, 2,6,10,14-Tetramethyl-7-3-methylpent-4-enylpentadecane Kasten corer Gas chromatography - Mass spectrometry GC-MS Calculated ARK-XIII/2 Polarstern Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Müller, Juliane Massé, Guillaume Stein, Ruediger Belt, Simon T Figure 2: IP25 measurements and accumulation rates of sediment core PS2837-5 ... |
topic_facet |
DEPTH, sediment/rock AGE 2,6,10,14-Tetramethyl-7-3-methylpent-4-enylpentadecane per unit sediment mass Accumulation rate, 2,6,10,14-Tetramethyl-7-3-methylpent-4-enylpentadecane Kasten corer Gas chromatography - Mass spectrometry GC-MS Calculated ARK-XIII/2 Polarstern Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
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 ... : For further details on the age model of the core and specific organic geochemical data (brassicasterol and total organic carbon content) we refer to the data set entry by Birgel and Hass, 2004, doi:10.1594/PANGAEA.728974. See doi:10.1594/PANGAEA.56094 for the GISP2 oxygen isotope data (Grootes et al, 1993). ... |
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://dx.doi.org/10.1594/pangaea.728973 https://doi.pangaea.de/10.1594/PANGAEA.728973 |
genre |
North Atlantic Sea ice |
genre_facet |
North Atlantic Sea ice |
op_relation |
https://dx.doi.org/10.1038/ngeo665 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.72897310.1038/ngeo665 |
_version_ |
1778530382201749504 |