Sea surface temperature calculation based on alkenones in sediments off northwest Africa
The molecular stratigraphy of Biogeochemical Oceanic Flux Study core 31K (19°N, 20°10'W) and Ocean Drilling Program Hole 658C (20°45'N, 18°35'W) has been studied for C37 alkenone abundances over the past 80 ka at high resolution (~circa 200-500 years). The derived Uk 37' sea surf...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.729952 2024-09-15T18:25:25+00:00 Sea surface temperature calculation based on alkenones in sediments off northwest Africa Zhao, Meixun Beveridge, N Shackleton, Nicholas J Sarnthein, Michael Eglinton, Geoffrey MEDIAN LATITUDE: 19.873550 * MEDIAN LONGITUDE: -19.371450 * SOUTH-BOUND LATITUDE: 18.997900 * WEST-BOUND LONGITUDE: -20.162100 * NORTH-BOUND LATITUDE: 20.749200 * EAST-BOUND LONGITUDE: -18.580800 * DATE/TIME START: 1986-03-08T00:45:00 * DATE/TIME END: 1990-10-17T00:00:00 1995 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.729952 https://doi.org/10.1594/PANGAEA.729952 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.729952 https://doi.org/10.1594/PANGAEA.729952 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Zhao, Meixun; Beveridge, N; Shackleton, Nicholas J; Sarnthein, Michael; Eglinton, Geoffrey (1995): Molecular stratigraphy, of cores off northwest Africa: Sea surface temperature history over the last 80 ka. Paleoceanography, 10(3), 661-675, https://doi.org/10.1029/94PA03354 108-658C Biogeochemical Ocean Flux Study BOFS BOFS31/1K BOFS31#1 Canarias Sea CD53 Charles Darwin DRILL Drilling/drill rig Joides Resolution KAL Kasten corer Leg108 Northeast Atlantic Ocean Drilling Program ODP dataset publication series 1995 ftpangaea https://doi.org/10.1594/PANGAEA.72995210.1029/94PA03354 2024-07-24T02:31:20Z The molecular stratigraphy of Biogeochemical Oceanic Flux Study core 31K (19°N, 20°10'W) and Ocean Drilling Program Hole 658C (20°45'N, 18°35'W) has been studied for C37 alkenone abundances over the past 80 ka at high resolution (~circa 200-500 years). The derived Uk 37' sea surface temperature record for both cores shows a range of temperatures from about 18°C during the last glacial to 21.5°C during the early Holocene. Both records also reveal changes in sea surface temperature as much as 2°-4°C over a few hundred years, which correlate well with similar abrupt climatic changes observed in cores from elsewhere in the NE Atlantic, associated with 'Heinrich events'. Our results indicate that meltwater produced by these ice-rafting events was transmitted southward by the Canary Current, where it had considerable impact on sea surface temperatures in the subtropical eastern Atlantic. Other/Unknown Material Northeast Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-20.162100,-18.580800,20.749200,18.997900) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
108-658C Biogeochemical Ocean Flux Study BOFS BOFS31/1K BOFS31#1 Canarias Sea CD53 Charles Darwin DRILL Drilling/drill rig Joides Resolution KAL Kasten corer Leg108 Northeast Atlantic Ocean Drilling Program ODP |
spellingShingle |
108-658C Biogeochemical Ocean Flux Study BOFS BOFS31/1K BOFS31#1 Canarias Sea CD53 Charles Darwin DRILL Drilling/drill rig Joides Resolution KAL Kasten corer Leg108 Northeast Atlantic Ocean Drilling Program ODP Zhao, Meixun Beveridge, N Shackleton, Nicholas J Sarnthein, Michael Eglinton, Geoffrey Sea surface temperature calculation based on alkenones in sediments off northwest Africa |
topic_facet |
108-658C Biogeochemical Ocean Flux Study BOFS BOFS31/1K BOFS31#1 Canarias Sea CD53 Charles Darwin DRILL Drilling/drill rig Joides Resolution KAL Kasten corer Leg108 Northeast Atlantic Ocean Drilling Program ODP |
description |
The molecular stratigraphy of Biogeochemical Oceanic Flux Study core 31K (19°N, 20°10'W) and Ocean Drilling Program Hole 658C (20°45'N, 18°35'W) has been studied for C37 alkenone abundances over the past 80 ka at high resolution (~circa 200-500 years). The derived Uk 37' sea surface temperature record for both cores shows a range of temperatures from about 18°C during the last glacial to 21.5°C during the early Holocene. Both records also reveal changes in sea surface temperature as much as 2°-4°C over a few hundred years, which correlate well with similar abrupt climatic changes observed in cores from elsewhere in the NE Atlantic, associated with 'Heinrich events'. Our results indicate that meltwater produced by these ice-rafting events was transmitted southward by the Canary Current, where it had considerable impact on sea surface temperatures in the subtropical eastern Atlantic. |
format |
Other/Unknown Material |
author |
Zhao, Meixun Beveridge, N Shackleton, Nicholas J Sarnthein, Michael Eglinton, Geoffrey |
author_facet |
Zhao, Meixun Beveridge, N Shackleton, Nicholas J Sarnthein, Michael Eglinton, Geoffrey |
author_sort |
Zhao, Meixun |
title |
Sea surface temperature calculation based on alkenones in sediments off northwest Africa |
title_short |
Sea surface temperature calculation based on alkenones in sediments off northwest Africa |
title_full |
Sea surface temperature calculation based on alkenones in sediments off northwest Africa |
title_fullStr |
Sea surface temperature calculation based on alkenones in sediments off northwest Africa |
title_full_unstemmed |
Sea surface temperature calculation based on alkenones in sediments off northwest Africa |
title_sort |
sea surface temperature calculation based on alkenones in sediments off northwest africa |
publisher |
PANGAEA |
publishDate |
1995 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.729952 https://doi.org/10.1594/PANGAEA.729952 |
op_coverage |
MEDIAN LATITUDE: 19.873550 * MEDIAN LONGITUDE: -19.371450 * SOUTH-BOUND LATITUDE: 18.997900 * WEST-BOUND LONGITUDE: -20.162100 * NORTH-BOUND LATITUDE: 20.749200 * EAST-BOUND LONGITUDE: -18.580800 * DATE/TIME START: 1986-03-08T00:45:00 * DATE/TIME END: 1990-10-17T00:00:00 |
long_lat |
ENVELOPE(-20.162100,-18.580800,20.749200,18.997900) |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Supplement to: Zhao, Meixun; Beveridge, N; Shackleton, Nicholas J; Sarnthein, Michael; Eglinton, Geoffrey (1995): Molecular stratigraphy, of cores off northwest Africa: Sea surface temperature history over the last 80 ka. Paleoceanography, 10(3), 661-675, https://doi.org/10.1029/94PA03354 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.729952 https://doi.org/10.1594/PANGAEA.729952 |
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.72995210.1029/94PA03354 |
_version_ |
1810465927381123072 |