Stable oxygen isotope composition of benthic foraminifera from sediments of the Skagerrak, North Sea
Benthic foraminiferal tests of a sediment core from southwestern Skagerrak (northeastern North Sea, 420 m water depth) were investigated for their ratio of stable oxygen isotopes. During modern times sudden drops in temperature and salinity of Skagerrak deep waters point to advection-induced cascade...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.676724 2023-05-15T17:30:51+02:00 Stable oxygen isotope composition of benthic foraminifera from sediments of the Skagerrak, North Sea Brückner, Sylvia Mackensen, Andreas LATITUDE: 57.840550 * LONGITUDE: 8.709080 * DATE/TIME START: 2000-05-10T00:00:00 * DATE/TIME END: 2000-05-10T00:00:00 2006-01-11 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.676724 https://doi.org/10.1594/PANGAEA.676724 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.676724 https://doi.org/10.1594/PANGAEA.676724 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Brückner, Sylvia; Mackensen, Andreas (2006): Deep-water renewal in the Skagerrak during the last 1200 years triggered by the North Atlantic Oscillation: evidence from benthic foraminiferal d18O. The Holocene, 16(3), 331-340, https://doi.org/10.1191/0959683605hl931rp AL159 AL159_225514 Alkor (1990) AWI_Paleo GC Gravity corer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Skagerrak Dataset 2006 ftpangaea https://doi.org/10.1594/PANGAEA.676724 https://doi.org/10.1191/0959683605hl931rp 2023-01-20T07:31:06Z Benthic foraminiferal tests of a sediment core from southwestern Skagerrak (northeastern North Sea, 420 m water depth) were investigated for their ratio of stable oxygen isotopes. During modern times sudden drops in temperature and salinity of Skagerrak deep waters point to advection-induced cascades of colder and denser central North Sea waters entering the Skagerrak. These temperature drops, which are recorded in benthic foraminiferal tests via the stable oxygen isotopic composition, were used to reconstruct deep-water renewal in the Skagerrak. In a second step we will show that, at least during the last 1200 years, Skagerrak deep-water renewal is triggered by the negative phase of the North Atlantic Oscillation (NAO). The NAO exerts a strong influence on the climate of northwestern Europe. It is currently under debate if the long-term variability of the NAO is capable of influencing Northern Hemisphere climate on long timescales. The data presented here cannot reinforce these speculations. Our data show that most of the 'Little Ice Age' was dominated by comparably warm deep-water temperatures. However, we did find extraordinary strong temperature differences between central North Sea waters and North Atlantic water masses during this time interval. Dataset North Atlantic North Atlantic oscillation PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(8.709080,8.709080,57.840550,57.840550) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AL159 AL159_225514 Alkor (1990) AWI_Paleo GC Gravity corer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Skagerrak |
spellingShingle |
AL159 AL159_225514 Alkor (1990) AWI_Paleo GC Gravity corer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Skagerrak Brückner, Sylvia Mackensen, Andreas Stable oxygen isotope composition of benthic foraminifera from sediments of the Skagerrak, North Sea |
topic_facet |
AL159 AL159_225514 Alkor (1990) AWI_Paleo GC Gravity corer Paleoenvironmental Reconstructions from Marine Sediments @ AWI Skagerrak |
description |
Benthic foraminiferal tests of a sediment core from southwestern Skagerrak (northeastern North Sea, 420 m water depth) were investigated for their ratio of stable oxygen isotopes. During modern times sudden drops in temperature and salinity of Skagerrak deep waters point to advection-induced cascades of colder and denser central North Sea waters entering the Skagerrak. These temperature drops, which are recorded in benthic foraminiferal tests via the stable oxygen isotopic composition, were used to reconstruct deep-water renewal in the Skagerrak. In a second step we will show that, at least during the last 1200 years, Skagerrak deep-water renewal is triggered by the negative phase of the North Atlantic Oscillation (NAO). The NAO exerts a strong influence on the climate of northwestern Europe. It is currently under debate if the long-term variability of the NAO is capable of influencing Northern Hemisphere climate on long timescales. The data presented here cannot reinforce these speculations. Our data show that most of the 'Little Ice Age' was dominated by comparably warm deep-water temperatures. However, we did find extraordinary strong temperature differences between central North Sea waters and North Atlantic water masses during this time interval. |
format |
Dataset |
author |
Brückner, Sylvia Mackensen, Andreas |
author_facet |
Brückner, Sylvia Mackensen, Andreas |
author_sort |
Brückner, Sylvia |
title |
Stable oxygen isotope composition of benthic foraminifera from sediments of the Skagerrak, North Sea |
title_short |
Stable oxygen isotope composition of benthic foraminifera from sediments of the Skagerrak, North Sea |
title_full |
Stable oxygen isotope composition of benthic foraminifera from sediments of the Skagerrak, North Sea |
title_fullStr |
Stable oxygen isotope composition of benthic foraminifera from sediments of the Skagerrak, North Sea |
title_full_unstemmed |
Stable oxygen isotope composition of benthic foraminifera from sediments of the Skagerrak, North Sea |
title_sort |
stable oxygen isotope composition of benthic foraminifera from sediments of the skagerrak, north sea |
publisher |
PANGAEA |
publishDate |
2006 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.676724 https://doi.org/10.1594/PANGAEA.676724 |
op_coverage |
LATITUDE: 57.840550 * LONGITUDE: 8.709080 * DATE/TIME START: 2000-05-10T00:00:00 * DATE/TIME END: 2000-05-10T00:00:00 |
long_lat |
ENVELOPE(8.709080,8.709080,57.840550,57.840550) |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Supplement to: Brückner, Sylvia; Mackensen, Andreas (2006): Deep-water renewal in the Skagerrak during the last 1200 years triggered by the North Atlantic Oscillation: evidence from benthic foraminiferal d18O. The Holocene, 16(3), 331-340, https://doi.org/10.1191/0959683605hl931rp |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.676724 https://doi.org/10.1594/PANGAEA.676724 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.676724 https://doi.org/10.1191/0959683605hl931rp |
_version_ |
1766127960470847488 |