Variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar North Pacific and Bering Sea: Reconstruction from biomarker data
In order to study the modern sea surface characteristics of the sub-polar North Pacific and the Bering Sea, i.e. sea surface temperature (SST) and sea ice cover, surface sediments recovered during the RV Sonne Expedition 202 in 2009 were analysed. To distinguish between marine and terrestrial organi...
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Online Access: | https://epic.awi.de/id/eprint/26113/ https://epic.awi.de/id/eprint/26113/1/Meheust_2013.pdf https://hdl.handle.net/10013/epic.41344 https://hdl.handle.net/10013/epic.41344.d001 |
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ftawi:oai:epic.awi.de:26113 2024-09-09T19:33:39+00:00 Variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar North Pacific and Bering Sea: Reconstruction from biomarker data Meheust, Marie Fahl, Kirsten Stein, Rüdiger 2013-01-29 application/pdf https://epic.awi.de/id/eprint/26113/ https://epic.awi.de/id/eprint/26113/1/Meheust_2013.pdf https://hdl.handle.net/10013/epic.41344 https://hdl.handle.net/10013/epic.41344.d001 unknown PERGAMON-ELSEVIER SCIENCE LTD https://epic.awi.de/id/eprint/26113/1/Meheust_2013.pdf https://hdl.handle.net/10013/epic.41344.d001 Meheust, M. , Fahl, K. orcid:0000-0001-9317-4656 and Stein, R. orcid:0000-0002-4453-9564 (2013) Variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar North Pacific and Bering Sea: Reconstruction from biomarker data , Organic Geochemistry, 57 , pp. 54-64 . doi:10.1016/j.orggeochem.2013.01.008 <https://doi.org/10.1016/j.orggeochem.2013.01.008> , hdl:10013/epic.41344 EPIC3Organic Geochemistry, PERGAMON-ELSEVIER SCIENCE LTD, 57, pp. 54-64, ISSN: 0146-6380 Article isiRev 2013 ftawi https://doi.org/10.1016/j.orggeochem.2013.01.008 2024-06-24T04:03:49Z In order to study the modern sea surface characteristics of the sub-polar North Pacific and the Bering Sea, i.e. sea surface temperature (SST) and sea ice cover, surface sediments recovered during the RV Sonne Expedition 202 in 2009 were analysed. To distinguish between marine and terrestrial organic carbon, hydrogen index values, long chain n-alkanes and specific sterols have been determined. The results show that in the Bering Sea, especially on the sea slope, the organic carbon source is mainly caused by high primary production. In the North Pacific, on the other hand, the organic material originates predominantly from terrestrial higher plants, probably related to dust input from Asia. SST has been reconstructed using the modified alkenone unsaturation index. Calibration from Müller et al. (1998) offers the most reliable estimate of mean annual temperature in the central North Pacific but does not correlate with mean annual temperature throughout the study area. In the eastern North Pacific and the Bering Sea, the Sikes et al. (1997) calibration seems to be more accurate and matches summer SST. The distribution of the novel sea ice proxy IP25 (highly branched C25 isoprenoid alkene) in surface sediments is in accord with the modern spring sea ice edge and shows the potential of this proxy to track past variation in sea ice cover in the study area. Article in Journal/Newspaper Bering Sea Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Bering Sea Pacific Organic Geochemistry 57 54 64 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
In order to study the modern sea surface characteristics of the sub-polar North Pacific and the Bering Sea, i.e. sea surface temperature (SST) and sea ice cover, surface sediments recovered during the RV Sonne Expedition 202 in 2009 were analysed. To distinguish between marine and terrestrial organic carbon, hydrogen index values, long chain n-alkanes and specific sterols have been determined. The results show that in the Bering Sea, especially on the sea slope, the organic carbon source is mainly caused by high primary production. In the North Pacific, on the other hand, the organic material originates predominantly from terrestrial higher plants, probably related to dust input from Asia. SST has been reconstructed using the modified alkenone unsaturation index. Calibration from Müller et al. (1998) offers the most reliable estimate of mean annual temperature in the central North Pacific but does not correlate with mean annual temperature throughout the study area. In the eastern North Pacific and the Bering Sea, the Sikes et al. (1997) calibration seems to be more accurate and matches summer SST. The distribution of the novel sea ice proxy IP25 (highly branched C25 isoprenoid alkene) in surface sediments is in accord with the modern spring sea ice edge and shows the potential of this proxy to track past variation in sea ice cover in the study area. |
format |
Article in Journal/Newspaper |
author |
Meheust, Marie Fahl, Kirsten Stein, Rüdiger |
spellingShingle |
Meheust, Marie Fahl, Kirsten Stein, Rüdiger Variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar North Pacific and Bering Sea: Reconstruction from biomarker data |
author_facet |
Meheust, Marie Fahl, Kirsten Stein, Rüdiger |
author_sort |
Meheust, Marie |
title |
Variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar North Pacific and Bering Sea: Reconstruction from biomarker data |
title_short |
Variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar North Pacific and Bering Sea: Reconstruction from biomarker data |
title_full |
Variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar North Pacific and Bering Sea: Reconstruction from biomarker data |
title_fullStr |
Variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar North Pacific and Bering Sea: Reconstruction from biomarker data |
title_full_unstemmed |
Variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar North Pacific and Bering Sea: Reconstruction from biomarker data |
title_sort |
variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar north pacific and bering sea: reconstruction from biomarker data |
publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
publishDate |
2013 |
url |
https://epic.awi.de/id/eprint/26113/ https://epic.awi.de/id/eprint/26113/1/Meheust_2013.pdf https://hdl.handle.net/10013/epic.41344 https://hdl.handle.net/10013/epic.41344.d001 |
geographic |
Bering Sea Pacific |
geographic_facet |
Bering Sea Pacific |
genre |
Bering Sea Sea ice |
genre_facet |
Bering Sea Sea ice |
op_source |
EPIC3Organic Geochemistry, PERGAMON-ELSEVIER SCIENCE LTD, 57, pp. 54-64, ISSN: 0146-6380 |
op_relation |
https://epic.awi.de/id/eprint/26113/1/Meheust_2013.pdf https://hdl.handle.net/10013/epic.41344.d001 Meheust, M. , Fahl, K. orcid:0000-0001-9317-4656 and Stein, R. orcid:0000-0002-4453-9564 (2013) Variability in modern sea surface temperature, sea ice and terrigenous input in the sub-polar North Pacific and Bering Sea: Reconstruction from biomarker data , Organic Geochemistry, 57 , pp. 54-64 . doi:10.1016/j.orggeochem.2013.01.008 <https://doi.org/10.1016/j.orggeochem.2013.01.008> , hdl:10013/epic.41344 |
op_doi |
https://doi.org/10.1016/j.orggeochem.2013.01.008 |
container_title |
Organic Geochemistry |
container_volume |
57 |
container_start_page |
54 |
op_container_end_page |
64 |
_version_ |
1809903164296527872 |