Accumulation reconstruction and water isotope analysis for 1736–1997 of an ice core from the Ushkovsky volcano, Kamchatka, and their relationships to North Pacific climate records

An ice core was retrieved in June 1998 from the Gorshkov crater glacier at the top of the Ushkovsky volcano, in central Kamchatka. This ice core is one of only two recovered from Kamchatka so far, thus filling a gap in the regional instrumental climate network. Hydrogen isotope (δD) analyses and pas...

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Published in:Climate of the Past
Main Authors: Sato, T., Shiraiwa, T., Greve, R., Seddik, H., Edelmann, E., Zwinger, T.
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2014
Subjects:
Online Access:https://doi.org/10.5194/cp-10-393-2014
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spelling ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00020528 2023-05-15T16:38:34+02:00 Accumulation reconstruction and water isotope analysis for 1736–1997 of an ice core from the Ushkovsky volcano, Kamchatka, and their relationships to North Pacific climate records Sato, T. Shiraiwa, T. Greve, R. Seddik, H. Edelmann, E. Zwinger, T. 2014-02 electronic https://doi.org/10.5194/cp-10-393-2014 https://noa.gwlb.de/receive/cop_mods_00020528 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00020483/cp-10-393-2014.pdf https://cp.copernicus.org/articles/10/393/2014/cp-10-393-2014.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-10-393-2014 https://noa.gwlb.de/receive/cop_mods_00020528 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00020483/cp-10-393-2014.pdf https://cp.copernicus.org/articles/10/393/2014/cp-10-393-2014.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2014 ftnonlinearchiv https://doi.org/10.5194/cp-10-393-2014 2022-02-08T22:52:06Z An ice core was retrieved in June 1998 from the Gorshkov crater glacier at the top of the Ushkovsky volcano, in central Kamchatka. This ice core is one of only two recovered from Kamchatka so far, thus filling a gap in the regional instrumental climate network. Hydrogen isotope (δD) analyses and past accumulation reconstructions were conducted for the top 140.7 m of the core, spanning 1736–1997. Two accumulation reconstruction methods were developed and applied with the Salamatin and the Elmer/Ice firn-ice dynamics models, revealing a slightly increasing or nearly stable trend, respectively. Wavelet analysis shows that the ice core records have significant decadal and multi-decadal variabilities at different times. Around 1880 the multi-decadal variability of δD became lost and its average value increased by 6‰. The multi-decadal variability of reconstructed accumulation rates changed at around 1850. Reconstructed accumulation variations agree with ages of moraines in Kamchatka. Ice core signals were significantly correlated with North Pacific sea surface temperature (SST) and surface temperature (2 m temperature). δD correlates with the North Pacific Gyre Oscillation (NPGO) index after the climate regime shift in 1976/1977, but not before that. Therefore, our findings imply that the ice core record contains various information on the local, regional and large-scale climate variability in the North Pacific region. Understanding all detailed mechanisms behind the time-dependent connections between these climate patterns is challenging and requires further efforts towards multi-proxy analysis and climate modelling. Article in Journal/Newspaper ice core Kamchatka Niedersächsisches Online-Archiv NOA Pacific Climate of the Past 10 1 393 404
institution Open Polar
collection Niedersächsisches Online-Archiv NOA
op_collection_id ftnonlinearchiv
language English
topic article
Verlagsveröffentlichung
spellingShingle article
Verlagsveröffentlichung
Sato, T.
Shiraiwa, T.
Greve, R.
Seddik, H.
Edelmann, E.
Zwinger, T.
Accumulation reconstruction and water isotope analysis for 1736–1997 of an ice core from the Ushkovsky volcano, Kamchatka, and their relationships to North Pacific climate records
topic_facet article
Verlagsveröffentlichung
description An ice core was retrieved in June 1998 from the Gorshkov crater glacier at the top of the Ushkovsky volcano, in central Kamchatka. This ice core is one of only two recovered from Kamchatka so far, thus filling a gap in the regional instrumental climate network. Hydrogen isotope (δD) analyses and past accumulation reconstructions were conducted for the top 140.7 m of the core, spanning 1736–1997. Two accumulation reconstruction methods were developed and applied with the Salamatin and the Elmer/Ice firn-ice dynamics models, revealing a slightly increasing or nearly stable trend, respectively. Wavelet analysis shows that the ice core records have significant decadal and multi-decadal variabilities at different times. Around 1880 the multi-decadal variability of δD became lost and its average value increased by 6‰. The multi-decadal variability of reconstructed accumulation rates changed at around 1850. Reconstructed accumulation variations agree with ages of moraines in Kamchatka. Ice core signals were significantly correlated with North Pacific sea surface temperature (SST) and surface temperature (2 m temperature). δD correlates with the North Pacific Gyre Oscillation (NPGO) index after the climate regime shift in 1976/1977, but not before that. Therefore, our findings imply that the ice core record contains various information on the local, regional and large-scale climate variability in the North Pacific region. Understanding all detailed mechanisms behind the time-dependent connections between these climate patterns is challenging and requires further efforts towards multi-proxy analysis and climate modelling.
format Article in Journal/Newspaper
author Sato, T.
Shiraiwa, T.
Greve, R.
Seddik, H.
Edelmann, E.
Zwinger, T.
author_facet Sato, T.
Shiraiwa, T.
Greve, R.
Seddik, H.
Edelmann, E.
Zwinger, T.
author_sort Sato, T.
title Accumulation reconstruction and water isotope analysis for 1736–1997 of an ice core from the Ushkovsky volcano, Kamchatka, and their relationships to North Pacific climate records
title_short Accumulation reconstruction and water isotope analysis for 1736–1997 of an ice core from the Ushkovsky volcano, Kamchatka, and their relationships to North Pacific climate records
title_full Accumulation reconstruction and water isotope analysis for 1736–1997 of an ice core from the Ushkovsky volcano, Kamchatka, and their relationships to North Pacific climate records
title_fullStr Accumulation reconstruction and water isotope analysis for 1736–1997 of an ice core from the Ushkovsky volcano, Kamchatka, and their relationships to North Pacific climate records
title_full_unstemmed Accumulation reconstruction and water isotope analysis for 1736–1997 of an ice core from the Ushkovsky volcano, Kamchatka, and their relationships to North Pacific climate records
title_sort accumulation reconstruction and water isotope analysis for 1736–1997 of an ice core from the ushkovsky volcano, kamchatka, and their relationships to north pacific climate records
publisher Copernicus Publications
publishDate 2014
url https://doi.org/10.5194/cp-10-393-2014
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https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00020483/cp-10-393-2014.pdf
https://cp.copernicus.org/articles/10/393/2014/cp-10-393-2014.pdf
geographic Pacific
geographic_facet Pacific
genre ice core
Kamchatka
genre_facet ice core
Kamchatka
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-10-393-2014
https://noa.gwlb.de/receive/cop_mods_00020528
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00020483/cp-10-393-2014.pdf
https://cp.copernicus.org/articles/10/393/2014/cp-10-393-2014.pdf
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op_doi https://doi.org/10.5194/cp-10-393-2014
container_title Climate of the Past
container_volume 10
container_issue 1
container_start_page 393
op_container_end_page 404
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