Ice core chemistry database: an Antarctic compilation of sodium and sulfate records spanning the past 2000 years
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Published:2023-06-20
Issue:6
Volume:15
Page:2517-2532
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ISSN:1866-3516
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Container-title:Earth System Science Data
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language:en
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Short-container-title:Earth Syst. Sci. Data
Author:
Thomas Elizabeth R.ORCID, Vladimirova Diana O.ORCID, Tetzner Dieter R.ORCID, Emanuelsson B. Daniel, Chellman Nathan, Dixon Daniel A., Goosse HuguesORCID, Grieman Mackenzie M.ORCID, King Amy C. F.ORCID, Sigl MichaelORCID, Udy Danielle G.ORCID, Vance Tessa R.ORCID, Winski Dominic A.ORCID, Winton V. Holly L.ORCID, Bertler Nancy A. N.ORCID, Hori Akira, Laluraj Chavarukonam M., McConnell Joseph R.ORCID, Motizuki Yuko, Takahashi Kazuya, Motoyama HideakiORCID, Nakai Yoichi, Schwanck Franciéle, Simões Jefferson CardiaORCID, Lindau Filipe Gaudie LeyORCID, Severi MirkoORCID, Traversi RitaORCID, Wauthy Sarah, Xiao Cunde, Yang Jiao, Mosely-Thompson EllenORCID, Khodzher Tamara V., Golobokova Ludmila P., Ekaykin Alexey A.ORCID
Abstract
Abstract. Changes in sea ice conditions and atmospheric circulation over the Southern Ocean play an important role in modulating Antarctic climate. However, observations of both sea ice and wind conditions are limited in Antarctica and the Southern Ocean, both temporally and spatially, prior to the satellite era (1970 onwards). Ice core chemistry data can be used to reconstruct changes over annual, decadal, and millennial timescales. To facilitate sea ice and wind reconstructions, the CLIVASH2k (CLimate Variability in Antarctica and the Southern Hemisphere over the past 2000 years) working group has compiled a database of two species, sodium [Na+] and sulfate [SO42-], commonly measured ionic species. The database (https://doi.org/10.5285/9E0ED16E-F2AB-4372-8DF3-FDE7E388C9A7; Thomas et al., 2022) comprises records from 105 Antarctic ice cores, containing records with a maximum age duration of 2000 years. An initial filter has been applied, based on evaluation against sea ice concentration, geopotential height (500 hPa), and surface wind fields to identify sites suitable for reconstructing past sea ice conditions, wind strength, or atmospheric circulation.
Funder
Akademie der Naturwissenschaften
Publisher
Copernicus GmbH
Subject
General Earth and Planetary Sciences
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