Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland
The Early to Mid-Holocene experienced marked climate change over the northern hemisphere mid-latitudes in response to changing insolation and declining ice volume. Oxygen isotopes from lake sediments provide a valuable climate proxy, encoding information regarding temperature, hydroclimate and moist...
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Online Access: | https://pure.uhi.ac.uk/en/publications/f73821f8-b7bb-4bea-889b-34c5fa6b37ad https://doi.org/10.1002/jqs.3571 https://pureadmin.uhi.ac.uk/ws/files/48294848/J_Quaternary_Science_2023_Holmes_Climate_and_atmospheric_circulation_during_the_Early_and_Mid_Holocene_inferred_from.pdf https://onlinelibrary.wiley.com/doi/10.1002/jqs.3571 |
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ftuhipublicatio:oai:pure.atira.dk:publications/f73821f8-b7bb-4bea-889b-34c5fa6b37ad 2024-02-04T10:01:18+01:00 Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland Holmes, Jonathan a. Tindall, Julia Jones, Matthew Holloway, Max Roberts, Neil Feeser, Ingo 2023-10-09 application/pdf https://pure.uhi.ac.uk/en/publications/f73821f8-b7bb-4bea-889b-34c5fa6b37ad https://doi.org/10.1002/jqs.3571 https://pureadmin.uhi.ac.uk/ws/files/48294848/J_Quaternary_Science_2023_Holmes_Climate_and_atmospheric_circulation_during_the_Early_and_Mid_Holocene_inferred_from.pdf https://onlinelibrary.wiley.com/doi/10.1002/jqs.3571 eng eng info:eu-repo/semantics/openAccess Holmes , J A , Tindall , J , Jones , M , Holloway , M , Roberts , N & Feeser , I 2023 , ' Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland ' , Journal of Quaternary Science . https://doi.org/10.1002/jqs.3571 Holocene lake sediments oxygen isotopes western Ireland article 2023 ftuhipublicatio https://doi.org/10.1002/jqs.3571 2024-01-11T23:21:39Z The Early to Mid-Holocene experienced marked climate change over the northern hemisphere mid-latitudes in response to changing insolation and declining ice volume. Oxygen isotopes from lake sediments provide a valuable climate proxy, encoding information regarding temperature, hydroclimate and moisture source. We present oxygen-isotope records from two lakes in western Ireland that are strongly influenced by the North Atlantic. Excellent replication between the records suggests they reflect regional, not local, influences. Carbonate oxygen-isotope values peaked at the start of the Holocene, between 11.2 and 11.1 cal ka bp, and then decreased markedly until 6 cal ka bp at both sites. Palaeoecological evidence supports only modest change in temperature or hydroclimate during this interval and we therefore explain the decrease primarily by a reduction in the oxygen-isotope composition of precipitation (δ18Oppt). We show a similar decrease in δ18O values in a forward model of carbonate isotopes between 12–11 and 6–5 cal ka bp. However, the inferred reduction in δ18Oppt between the Early and Mid-Holocene in the model is mainly linked to a decrease in the δ18O of the ocean source water from ice sheet melting whereas the lake carbonate isotope records are more consistent with changes in the transport pathway of moisture associated with atmospheric circulation change as the dominant cause Article in Journal/Newspaper Ice Sheet North Atlantic University of the Highlands and Islands: Research Database of UHI Journal of Quaternary Science |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
Holocene lake sediments oxygen isotopes western Ireland |
spellingShingle |
Holocene lake sediments oxygen isotopes western Ireland Holmes, Jonathan a. Tindall, Julia Jones, Matthew Holloway, Max Roberts, Neil Feeser, Ingo Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland |
topic_facet |
Holocene lake sediments oxygen isotopes western Ireland |
description |
The Early to Mid-Holocene experienced marked climate change over the northern hemisphere mid-latitudes in response to changing insolation and declining ice volume. Oxygen isotopes from lake sediments provide a valuable climate proxy, encoding information regarding temperature, hydroclimate and moisture source. We present oxygen-isotope records from two lakes in western Ireland that are strongly influenced by the North Atlantic. Excellent replication between the records suggests they reflect regional, not local, influences. Carbonate oxygen-isotope values peaked at the start of the Holocene, between 11.2 and 11.1 cal ka bp, and then decreased markedly until 6 cal ka bp at both sites. Palaeoecological evidence supports only modest change in temperature or hydroclimate during this interval and we therefore explain the decrease primarily by a reduction in the oxygen-isotope composition of precipitation (δ18Oppt). We show a similar decrease in δ18O values in a forward model of carbonate isotopes between 12–11 and 6–5 cal ka bp. However, the inferred reduction in δ18Oppt between the Early and Mid-Holocene in the model is mainly linked to a decrease in the δ18O of the ocean source water from ice sheet melting whereas the lake carbonate isotope records are more consistent with changes in the transport pathway of moisture associated with atmospheric circulation change as the dominant cause |
format |
Article in Journal/Newspaper |
author |
Holmes, Jonathan a. Tindall, Julia Jones, Matthew Holloway, Max Roberts, Neil Feeser, Ingo |
author_facet |
Holmes, Jonathan a. Tindall, Julia Jones, Matthew Holloway, Max Roberts, Neil Feeser, Ingo |
author_sort |
Holmes, Jonathan a. |
title |
Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland |
title_short |
Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland |
title_full |
Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland |
title_fullStr |
Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland |
title_full_unstemmed |
Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland |
title_sort |
climate and atmospheric circulation during the early and mid‐holocene inferred from lake‐carbonate oxygen‐isotope records from western ireland |
publishDate |
2023 |
url |
https://pure.uhi.ac.uk/en/publications/f73821f8-b7bb-4bea-889b-34c5fa6b37ad https://doi.org/10.1002/jqs.3571 https://pureadmin.uhi.ac.uk/ws/files/48294848/J_Quaternary_Science_2023_Holmes_Climate_and_atmospheric_circulation_during_the_Early_and_Mid_Holocene_inferred_from.pdf https://onlinelibrary.wiley.com/doi/10.1002/jqs.3571 |
genre |
Ice Sheet North Atlantic |
genre_facet |
Ice Sheet North Atlantic |
op_source |
Holmes , J A , Tindall , J , Jones , M , Holloway , M , Roberts , N & Feeser , I 2023 , ' Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland ' , Journal of Quaternary Science . https://doi.org/10.1002/jqs.3571 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/jqs.3571 |
container_title |
Journal of Quaternary Science |
_version_ |
1789967051415093248 |