Biomarker analyses on sediment core BP00-07/07 from the southern Kara Sea (Arctic Ocean)
The Holocene is characterized by the late Holocene cooling trend as well as by internal short-term centennial fluctuations. As Arctic sea ice acts as a significant component (amplifier) within the climate system, investigating its past long- and short-term variability and controlling processes is be...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.871593 2024-09-15T17:50:55+00:00 Biomarker analyses on sediment core BP00-07/07 from the southern Kara Sea (Arctic Ocean) Hörner, Tanja Stein, Ruediger Fahl, Kirsten LATITUDE: 74.657600 * LONGITUDE: 81.141100 * DATE/TIME START: 2000-09-07T06:22:00 * DATE/TIME END: 2000-09-07T06:22:00 * MINIMUM DEPTH, sediment/rock: 0.105 m * MAXIMUM DEPTH, sediment/rock: 7.005 m 2017 text/tab-separated-values, 891 data points https://doi.pangaea.de/10.1594/PANGAEA.871593 https://doi.org/10.1594/PANGAEA.871593 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.871593 https://doi.org/10.1594/PANGAEA.871593 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Hörner, Tanja; Stein, Ruediger; Fahl, Kirsten (2017): Evidence for Holocene centennial variability in sea ice cover based on IP25 biomarker reconstruction in the southern Kara Sea (Arctic Ocean). Geo-Marine Letters, 37(5), 515-526, https://doi.org/10.1007/s00367-017-0501-y 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit mass total organic carbon 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment mass 24-ethylcholest-5-en-3beta-ol 24-Ethylcholest-5-en-3beta-ol per unit sediment mass 24-Methylcholest-5-en-3beta-ol 24-Methylcholest-5-en-3beta-ol per unit sediment mass 24-Methylcholesta-5,22E-dien-3beta-ol 24-Methylcholesta-5,22E-dien-3beta-ol per unit sediment mass 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol per unit sediment mass Akademik Boris Petrov AWI_Paleo BP00 BP00-07/07 Carbon organic total DEPTH sediment/rock Element analyser CHN LECO CNS 2000 Gas chromatography - Mass spectrometry (GC-MS) GC Gravity corer Kara Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.87159310.1007/s00367-017-0501-y 2024-07-24T02:31:33Z The Holocene is characterized by the late Holocene cooling trend as well as by internal short-term centennial fluctuations. As Arctic sea ice acts as a significant component (amplifier) within the climate system, investigating its past long- and short-term variability and controlling processes is beneficial for climate future predictions. This study presents the first biomarker-based (IP25 and PIP25) sea ice reconstruction from the Kara Sea (Core BP00-07/07), covering the last 8 ka. These biomarker proxies reflect conspicuous short-term sea ice variability during the last 6.5 ka that is identified unprecedentedly in the source region of Arctic sea ice by means of a direct sea ice indicator. Prominent peaks of extended sea ice cover occurred at ~3, ~2, ~1.3 and ~0.3 ka Spectral analysis of the IP25 record revealed ~400- and ~950-year cycles. These periodicities may be related to the Arctic/North Atlantic Oscillation (AO/NAO), but probably also to internal climate system fluctuations. This demonstrates that sea ice belongs to a complex system that more likely depends on multiple internal forcing. Dataset Arctic Arctic Ocean Kara Sea North Atlantic North Atlantic oscillation Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(81.141100,81.141100,74.657600,74.657600) |
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 mass total organic carbon 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment mass 24-ethylcholest-5-en-3beta-ol 24-Ethylcholest-5-en-3beta-ol per unit sediment mass 24-Methylcholest-5-en-3beta-ol 24-Methylcholest-5-en-3beta-ol per unit sediment mass 24-Methylcholesta-5,22E-dien-3beta-ol 24-Methylcholesta-5,22E-dien-3beta-ol per unit sediment mass 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol per unit sediment mass Akademik Boris Petrov AWI_Paleo BP00 BP00-07/07 Carbon organic total DEPTH sediment/rock Element analyser CHN LECO CNS 2000 Gas chromatography - Mass spectrometry (GC-MS) GC Gravity corer Kara Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI |
spellingShingle |
2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit mass total organic carbon 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment mass 24-ethylcholest-5-en-3beta-ol 24-Ethylcholest-5-en-3beta-ol per unit sediment mass 24-Methylcholest-5-en-3beta-ol 24-Methylcholest-5-en-3beta-ol per unit sediment mass 24-Methylcholesta-5,22E-dien-3beta-ol 24-Methylcholesta-5,22E-dien-3beta-ol per unit sediment mass 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol per unit sediment mass Akademik Boris Petrov AWI_Paleo BP00 BP00-07/07 Carbon organic total DEPTH sediment/rock Element analyser CHN LECO CNS 2000 Gas chromatography - Mass spectrometry (GC-MS) GC Gravity corer Kara Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Hörner, Tanja Stein, Ruediger Fahl, Kirsten Biomarker analyses on sediment core BP00-07/07 from the southern Kara Sea (Arctic Ocean) |
topic_facet |
2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit mass total organic carbon 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment mass 24-ethylcholest-5-en-3beta-ol 24-Ethylcholest-5-en-3beta-ol per unit sediment mass 24-Methylcholest-5-en-3beta-ol 24-Methylcholest-5-en-3beta-ol per unit sediment mass 24-Methylcholesta-5,22E-dien-3beta-ol 24-Methylcholesta-5,22E-dien-3beta-ol per unit sediment mass 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol per unit sediment mass Akademik Boris Petrov AWI_Paleo BP00 BP00-07/07 Carbon organic total DEPTH sediment/rock Element analyser CHN LECO CNS 2000 Gas chromatography - Mass spectrometry (GC-MS) GC Gravity corer Kara Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI |
description |
The Holocene is characterized by the late Holocene cooling trend as well as by internal short-term centennial fluctuations. As Arctic sea ice acts as a significant component (amplifier) within the climate system, investigating its past long- and short-term variability and controlling processes is beneficial for climate future predictions. This study presents the first biomarker-based (IP25 and PIP25) sea ice reconstruction from the Kara Sea (Core BP00-07/07), covering the last 8 ka. These biomarker proxies reflect conspicuous short-term sea ice variability during the last 6.5 ka that is identified unprecedentedly in the source region of Arctic sea ice by means of a direct sea ice indicator. Prominent peaks of extended sea ice cover occurred at ~3, ~2, ~1.3 and ~0.3 ka Spectral analysis of the IP25 record revealed ~400- and ~950-year cycles. These periodicities may be related to the Arctic/North Atlantic Oscillation (AO/NAO), but probably also to internal climate system fluctuations. This demonstrates that sea ice belongs to a complex system that more likely depends on multiple internal forcing. |
format |
Dataset |
author |
Hörner, Tanja Stein, Ruediger Fahl, Kirsten |
author_facet |
Hörner, Tanja Stein, Ruediger Fahl, Kirsten |
author_sort |
Hörner, Tanja |
title |
Biomarker analyses on sediment core BP00-07/07 from the southern Kara Sea (Arctic Ocean) |
title_short |
Biomarker analyses on sediment core BP00-07/07 from the southern Kara Sea (Arctic Ocean) |
title_full |
Biomarker analyses on sediment core BP00-07/07 from the southern Kara Sea (Arctic Ocean) |
title_fullStr |
Biomarker analyses on sediment core BP00-07/07 from the southern Kara Sea (Arctic Ocean) |
title_full_unstemmed |
Biomarker analyses on sediment core BP00-07/07 from the southern Kara Sea (Arctic Ocean) |
title_sort |
biomarker analyses on sediment core bp00-07/07 from the southern kara sea (arctic ocean) |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.871593 https://doi.org/10.1594/PANGAEA.871593 |
op_coverage |
LATITUDE: 74.657600 * LONGITUDE: 81.141100 * DATE/TIME START: 2000-09-07T06:22:00 * DATE/TIME END: 2000-09-07T06:22:00 * MINIMUM DEPTH, sediment/rock: 0.105 m * MAXIMUM DEPTH, sediment/rock: 7.005 m |
long_lat |
ENVELOPE(81.141100,81.141100,74.657600,74.657600) |
genre |
Arctic Arctic Ocean Kara Sea North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic Arctic Ocean Kara Sea North Atlantic North Atlantic oscillation Sea ice |
op_source |
Supplement to: Hörner, Tanja; Stein, Ruediger; Fahl, Kirsten (2017): Evidence for Holocene centennial variability in sea ice cover based on IP25 biomarker reconstruction in the southern Kara Sea (Arctic Ocean). Geo-Marine Letters, 37(5), 515-526, https://doi.org/10.1007/s00367-017-0501-y |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.871593 https://doi.org/10.1594/PANGAEA.871593 |
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.87159310.1007/s00367-017-0501-y |
_version_ |
1810292723578568704 |