North Atlantic Oscillation controls on oxygen and hydrogen isotope gradients in winter precipitation across Europe; implications for palaeoclimate studies
Winter (October to March) precipitation δ18OP and δDP values in central Europe correlate with the winter North Atlantic Oscillation index (wNAOi), but the causal mechanisms remain poorly understood. Here we analyse the relationships between precipitation-weighted δ18OP and δDP datasets (δ18Opw and δ...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00043020 2023-05-15T17:30:24+02:00 North Atlantic Oscillation controls on oxygen and hydrogen isotope gradients in winter precipitation across Europe; implications for palaeoclimate studies Deininger, Michael Werner, Martin McDermott, Frank 2016-11 electronic https://doi.org/10.5194/cp-12-2127-2016 https://noa.gwlb.de/receive/cop_mods_00043020 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042640/cp-12-2127-2016.pdf https://cp.copernicus.org/articles/12/2127/2016/cp-12-2127-2016.pdf eng eng Copernicus Publications Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-12-2127-2016 https://noa.gwlb.de/receive/cop_mods_00043020 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042640/cp-12-2127-2016.pdf https://cp.copernicus.org/articles/12/2127/2016/cp-12-2127-2016.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2016 ftnonlinearchiv https://doi.org/10.5194/cp-12-2127-2016 2022-02-08T22:40:46Z Winter (October to March) precipitation δ18OP and δDP values in central Europe correlate with the winter North Atlantic Oscillation index (wNAOi), but the causal mechanisms remain poorly understood. Here we analyse the relationships between precipitation-weighted δ18OP and δDP datasets (δ18Opw and δDpw) from European GNIP and ANIP stations and the wNAOi, with a focus on isotope gradients. We demonstrate that longitudinal δ18Opw and δDpw gradients across Europe (“continental effect”) depend on the wNAOi state, with steeper gradients associated with more negative wNAOi states. Changing gradients reflect a combination of air temperature and variable amounts of precipitable water as a function of the wNAOi. The relationships between the wNAOi, δ18Opw and δDpw can provide additional information from palaeoclimate archives such as European speleothems that primarily record winter δ18Opw. Comparisons between present-day and past European longitudinal δ18O gradients inferred from Holocene speleothems suggest that atmospheric pressure configurations akin to negative wNAO modes dominated the early Holocene, whereas patterns resembling positive wNAO modes were more common in the late Holocene, possibly caused by persistent shifts in the relative locations of the Azores High and the Icelandic Low. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Niedersächsisches Online-Archiv NOA Climate of the Past 12 11 2127 2143 |
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article Verlagsveröffentlichung Deininger, Michael Werner, Martin McDermott, Frank North Atlantic Oscillation controls on oxygen and hydrogen isotope gradients in winter precipitation across Europe; implications for palaeoclimate studies |
topic_facet |
article Verlagsveröffentlichung |
description |
Winter (October to March) precipitation δ18OP and δDP values in central Europe correlate with the winter North Atlantic Oscillation index (wNAOi), but the causal mechanisms remain poorly understood. Here we analyse the relationships between precipitation-weighted δ18OP and δDP datasets (δ18Opw and δDpw) from European GNIP and ANIP stations and the wNAOi, with a focus on isotope gradients. We demonstrate that longitudinal δ18Opw and δDpw gradients across Europe (“continental effect”) depend on the wNAOi state, with steeper gradients associated with more negative wNAOi states. Changing gradients reflect a combination of air temperature and variable amounts of precipitable water as a function of the wNAOi. The relationships between the wNAOi, δ18Opw and δDpw can provide additional information from palaeoclimate archives such as European speleothems that primarily record winter δ18Opw. Comparisons between present-day and past European longitudinal δ18O gradients inferred from Holocene speleothems suggest that atmospheric pressure configurations akin to negative wNAO modes dominated the early Holocene, whereas patterns resembling positive wNAO modes were more common in the late Holocene, possibly caused by persistent shifts in the relative locations of the Azores High and the Icelandic Low. |
format |
Article in Journal/Newspaper |
author |
Deininger, Michael Werner, Martin McDermott, Frank |
author_facet |
Deininger, Michael Werner, Martin McDermott, Frank |
author_sort |
Deininger, Michael |
title |
North Atlantic Oscillation controls on oxygen and hydrogen isotope gradients in winter precipitation across Europe; implications for palaeoclimate studies |
title_short |
North Atlantic Oscillation controls on oxygen and hydrogen isotope gradients in winter precipitation across Europe; implications for palaeoclimate studies |
title_full |
North Atlantic Oscillation controls on oxygen and hydrogen isotope gradients in winter precipitation across Europe; implications for palaeoclimate studies |
title_fullStr |
North Atlantic Oscillation controls on oxygen and hydrogen isotope gradients in winter precipitation across Europe; implications for palaeoclimate studies |
title_full_unstemmed |
North Atlantic Oscillation controls on oxygen and hydrogen isotope gradients in winter precipitation across Europe; implications for palaeoclimate studies |
title_sort |
north atlantic oscillation controls on oxygen and hydrogen isotope gradients in winter precipitation across europe; implications for palaeoclimate studies |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/cp-12-2127-2016 https://noa.gwlb.de/receive/cop_mods_00043020 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042640/cp-12-2127-2016.pdf https://cp.copernicus.org/articles/12/2127/2016/cp-12-2127-2016.pdf |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-12-2127-2016 https://noa.gwlb.de/receive/cop_mods_00043020 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042640/cp-12-2127-2016.pdf https://cp.copernicus.org/articles/12/2127/2016/cp-12-2127-2016.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cp-12-2127-2016 |
container_title |
Climate of the Past |
container_volume |
12 |
container_issue |
11 |
container_start_page |
2127 |
op_container_end_page |
2143 |
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1766126777898369024 |