Age model, and raw data of bottom water temperatures (BWT) and stable oxygen isotopes of seawater reconstructions (Mg/Ca, δ18O) using the benthic foraminifera Hyalinea balthica from the Irish Continental Shelf
There is increasing evidence that accelerated warming at high-latitudes is associated with increased climate variability at mid-latitudes, including the frequency and intensity of storms. However, due to short instrumental records our understanding of how ocean-atmosphere dynamics operate during war...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.907706 2023-05-15T16:03:57+02:00 Age model, and raw data of bottom water temperatures (BWT) and stable oxygen isotopes of seawater reconstructions (Mg/Ca, δ18O) using the benthic foraminifera Hyalinea balthica from the Irish Continental Shelf Curran, Michelle Rosenthal, Yair Wright, James D Morley, Audrey LATITUDE: 52.974330 * LONGITUDE: -9.959330 * DATE/TIME START: 1999-10-18T14:53:00 * DATE/TIME END: 1999-10-18T14:53:00 * MINIMUM DEPTH, sediment/rock: 0.0 m * MAXIMUM DEPTH, sediment/rock: 58.0 m 2019-10-21 text/tab-separated-values, 660 data points https://doi.pangaea.de/10.1594/PANGAEA.907706 https://doi.org/10.1594/PANGAEA.907706 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.907706 https://doi.org/10.1594/PANGAEA.907706 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Curran, Michelle; Rosenthal, Yair; Wright, James D; Morley, Audrey (2019): Atmospheric response to mid-Holocene warming in the northeastern Atlantic: Implications for future storminess in the Ireland/UK region. Quaternary Science Reviews, 225, 106004, https://doi.org/10.1016/j.quascirev.2019.106004 AGE Bottom water temperature Calculated following Fairbanks (1989) Calculated from Mg/Ca ratios and d18O corrected Calculated from Mg/Ca ratios in Hyalinea balthica Calculated from δ18Osw Celtic Voyager CV15025 CV15025_GC_07_01 DEPTH sediment/rock GC Gravity corer Hyalinea balthica Magnesium/Calcium ratio δ18O Irish Continental Shelf Measured from H. balthica with ICPMS in solution (Rosenthal et al. 1999) Micromass Optima mass spectrometer fitted with a Multiprep device Northgrippian Mid-Holocene Mg/Ca Paleosalinity seawater reconstructed Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.907706 https://doi.org/10.1016/j.quascirev.2019.106004 2023-01-20T09:12:47Z There is increasing evidence that accelerated warming at high-latitudes is associated with increased climate variability at mid-latitudes, including the frequency and intensity of storms. However, due to short instrumental records our understanding of how ocean-atmosphere dynamics operate during warmer than present climates remains limited. Here we present a palaeoceanographic investigation of the transition between the middle Holocene intervals of the Northgrippian (8.2 - 4.2 ka) and the late Holocene interval of the Meghalayan (4.2 - 0 ka) to test the hypothesis of an eastward shift of the Icelandic Low under warmer than present climate scenarios. Reconstructions of bottom water temperatures (BWT) and stable oxygen isotopes (Mg/Ca, δ18O) using the benthic foraminifera Hyalinea balthica reveal warmer than present BWT of up to 2.6 ± 0.7°C on the Irish Continental Shelf until circa 4.2 ka. The results suggest that Atlantic waters of subtropical origins were more prevalent in the eastern subpolar gyre (SPG) and on the Irish Continental Shelf. We link this oceanographic signature to an eastward shift of the Icelandic Low. We then place our local temperature record into an extra-regional context, using a combination of modern observations and existing palaeo datasets, which enables us to assess the impact of changing atmospheric modes on ocean-atmosphere climate linkages within the North Atlantic Region. The enhanced influence of warm subtropical Atlantic waters recirculating along the boundaries of the SPG under this scenario, would potentially have enhanced melt rates of marine-terminating glaciers on the east Greenland Shelf during the Northgrippian. Dataset East Greenland Greenland North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Fairbanks Greenland Rosenthal ENVELOPE(-64.283,-64.283,-64.600,-64.600) ENVELOPE(-9.959330,-9.959330,52.974330,52.974330) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AGE Bottom water temperature Calculated following Fairbanks (1989) Calculated from Mg/Ca ratios and d18O corrected Calculated from Mg/Ca ratios in Hyalinea balthica Calculated from δ18Osw Celtic Voyager CV15025 CV15025_GC_07_01 DEPTH sediment/rock GC Gravity corer Hyalinea balthica Magnesium/Calcium ratio δ18O Irish Continental Shelf Measured from H. balthica with ICPMS in solution (Rosenthal et al. 1999) Micromass Optima mass spectrometer fitted with a Multiprep device Northgrippian Mid-Holocene Mg/Ca Paleosalinity seawater reconstructed |
spellingShingle |
AGE Bottom water temperature Calculated following Fairbanks (1989) Calculated from Mg/Ca ratios and d18O corrected Calculated from Mg/Ca ratios in Hyalinea balthica Calculated from δ18Osw Celtic Voyager CV15025 CV15025_GC_07_01 DEPTH sediment/rock GC Gravity corer Hyalinea balthica Magnesium/Calcium ratio δ18O Irish Continental Shelf Measured from H. balthica with ICPMS in solution (Rosenthal et al. 1999) Micromass Optima mass spectrometer fitted with a Multiprep device Northgrippian Mid-Holocene Mg/Ca Paleosalinity seawater reconstructed Curran, Michelle Rosenthal, Yair Wright, James D Morley, Audrey Age model, and raw data of bottom water temperatures (BWT) and stable oxygen isotopes of seawater reconstructions (Mg/Ca, δ18O) using the benthic foraminifera Hyalinea balthica from the Irish Continental Shelf |
topic_facet |
AGE Bottom water temperature Calculated following Fairbanks (1989) Calculated from Mg/Ca ratios and d18O corrected Calculated from Mg/Ca ratios in Hyalinea balthica Calculated from δ18Osw Celtic Voyager CV15025 CV15025_GC_07_01 DEPTH sediment/rock GC Gravity corer Hyalinea balthica Magnesium/Calcium ratio δ18O Irish Continental Shelf Measured from H. balthica with ICPMS in solution (Rosenthal et al. 1999) Micromass Optima mass spectrometer fitted with a Multiprep device Northgrippian Mid-Holocene Mg/Ca Paleosalinity seawater reconstructed |
description |
There is increasing evidence that accelerated warming at high-latitudes is associated with increased climate variability at mid-latitudes, including the frequency and intensity of storms. However, due to short instrumental records our understanding of how ocean-atmosphere dynamics operate during warmer than present climates remains limited. Here we present a palaeoceanographic investigation of the transition between the middle Holocene intervals of the Northgrippian (8.2 - 4.2 ka) and the late Holocene interval of the Meghalayan (4.2 - 0 ka) to test the hypothesis of an eastward shift of the Icelandic Low under warmer than present climate scenarios. Reconstructions of bottom water temperatures (BWT) and stable oxygen isotopes (Mg/Ca, δ18O) using the benthic foraminifera Hyalinea balthica reveal warmer than present BWT of up to 2.6 ± 0.7°C on the Irish Continental Shelf until circa 4.2 ka. The results suggest that Atlantic waters of subtropical origins were more prevalent in the eastern subpolar gyre (SPG) and on the Irish Continental Shelf. We link this oceanographic signature to an eastward shift of the Icelandic Low. We then place our local temperature record into an extra-regional context, using a combination of modern observations and existing palaeo datasets, which enables us to assess the impact of changing atmospheric modes on ocean-atmosphere climate linkages within the North Atlantic Region. The enhanced influence of warm subtropical Atlantic waters recirculating along the boundaries of the SPG under this scenario, would potentially have enhanced melt rates of marine-terminating glaciers on the east Greenland Shelf during the Northgrippian. |
format |
Dataset |
author |
Curran, Michelle Rosenthal, Yair Wright, James D Morley, Audrey |
author_facet |
Curran, Michelle Rosenthal, Yair Wright, James D Morley, Audrey |
author_sort |
Curran, Michelle |
title |
Age model, and raw data of bottom water temperatures (BWT) and stable oxygen isotopes of seawater reconstructions (Mg/Ca, δ18O) using the benthic foraminifera Hyalinea balthica from the Irish Continental Shelf |
title_short |
Age model, and raw data of bottom water temperatures (BWT) and stable oxygen isotopes of seawater reconstructions (Mg/Ca, δ18O) using the benthic foraminifera Hyalinea balthica from the Irish Continental Shelf |
title_full |
Age model, and raw data of bottom water temperatures (BWT) and stable oxygen isotopes of seawater reconstructions (Mg/Ca, δ18O) using the benthic foraminifera Hyalinea balthica from the Irish Continental Shelf |
title_fullStr |
Age model, and raw data of bottom water temperatures (BWT) and stable oxygen isotopes of seawater reconstructions (Mg/Ca, δ18O) using the benthic foraminifera Hyalinea balthica from the Irish Continental Shelf |
title_full_unstemmed |
Age model, and raw data of bottom water temperatures (BWT) and stable oxygen isotopes of seawater reconstructions (Mg/Ca, δ18O) using the benthic foraminifera Hyalinea balthica from the Irish Continental Shelf |
title_sort |
age model, and raw data of bottom water temperatures (bwt) and stable oxygen isotopes of seawater reconstructions (mg/ca, δ18o) using the benthic foraminifera hyalinea balthica from the irish continental shelf |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.907706 https://doi.org/10.1594/PANGAEA.907706 |
op_coverage |
LATITUDE: 52.974330 * LONGITUDE: -9.959330 * DATE/TIME START: 1999-10-18T14:53:00 * DATE/TIME END: 1999-10-18T14:53:00 * MINIMUM DEPTH, sediment/rock: 0.0 m * MAXIMUM DEPTH, sediment/rock: 58.0 m |
long_lat |
ENVELOPE(-64.283,-64.283,-64.600,-64.600) ENVELOPE(-9.959330,-9.959330,52.974330,52.974330) |
geographic |
Fairbanks Greenland Rosenthal |
geographic_facet |
Fairbanks Greenland Rosenthal |
genre |
East Greenland Greenland North Atlantic |
genre_facet |
East Greenland Greenland North Atlantic |
op_source |
Supplement to: Curran, Michelle; Rosenthal, Yair; Wright, James D; Morley, Audrey (2019): Atmospheric response to mid-Holocene warming in the northeastern Atlantic: Implications for future storminess in the Ireland/UK region. Quaternary Science Reviews, 225, 106004, https://doi.org/10.1016/j.quascirev.2019.106004 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.907706 https://doi.org/10.1594/PANGAEA.907706 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.907706 https://doi.org/10.1016/j.quascirev.2019.106004 |
_version_ |
1766399649317388288 |