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The Iso2k database: a global compilation of paleo-δ18O and δ2H records to aid understanding of Common Era climate

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Konecky, BL and McKay, NP and Churakova Sidorova, OV and Comas-Bru, L and Dassie, EP and DeLong, KL and Falster, GM and Fischer, MJ and Jones, MD and Jonkers, L and Kaufman, DS and Leduc, G and Managave, SR and Martrat, B and Opel, T and Orsi, AJ and Partin, JW and Sayani, HR and Thomas, EK and Thompson, DM and Tyler, JJ and Abram, NJ and Atwood, AR and Cartapanis, O and Conroy, JL and Curran, MA and Dee, SG and Deininger, M and Divine, DV and Kern, Z and Porter, TJ and Stevenson, SL and von Gunten, L and Moy, AD, and Iso2k Project Members, The Iso2k database: a global compilation of paleo-δ18O and δ2H records to aid understanding of Common Era climate, Earth System Science Data, 12 pp. 2261-2288. ISSN 1866-3508 (2020) [Refereed Article]


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© Author(s) 2020. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/

DOI: doi:10.5194/essd-12-2261-2020

Abstract

Reconstructions of global hydroclimate during the Common Era (CE; the past ∼2000 years) are important for providing context for current and future global environmental change. Stable isotope ratios in water are quantitative indicators of hydroclimate on regional to global scales, and these signals are encoded in a wide range of natural geologic archives. Here we present the Iso2k database, a global compilation of previously published datasets from a variety of natural archives that record the stable oxygen (δ18O) or hydrogen (δ2H) isotopic compositions of environmental waters, which reflect hydroclimate changes over the CE. The Iso2k database contains 759 isotope records from the terrestrial and marine realms, including glacier and ground ice (210); speleothems (68); corals, sclerosponges, and mollusks (143); wood (81); lake sediments and other terrestrial sediments (e.g., loess) (158); and marine sediments (99). Individual datasets have temporal resolutions ranging from sub-annual to centennial and include chronological data where available. A fundamental feature of the database is its comprehensive metadata, which will assist both experts and nonexperts in the interpretation of each record and in data synthesis. Key metadata fields have standardized vocabularies to facilitate comparisons across diverse archives and with climate-model-simulated fields. This is the first global-scale collection of water isotope proxy records from multiple types of geological and biological archives. It is suitable for evaluating hydroclimate processes through time and space using large-scale synthesis, model–data intercomparison and (paleo)data assimilation. The Iso2k database is available for download at https://doi.org/10.25921/57j8-vs18 (Konecky and McKay, 2020) and is also accessible via the NOAA/WDS Paleo Data landing page: https://www.ncdc.noaa.gov/paleo/study/29593

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Item Details

Item Type:Refereed Article
Keywords:hydroclimate, stable isotopes, oxygen isotopes, hydrogen isotopes, Iso2k database
Research Division:Earth Sciences
Research Group:Physical geography and environmental geoscience
Research Field:Palaeoclimatology
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Understanding climate change
Objective Field:Global effects of climate change (excl. Australia, New Zealand, Antarctica and the South Pacific) (excl. social impacts)
UTAS Author:Curran, MA (Dr Mark Curran)
UTAS Author:Moy, AD (Dr Andrew Moy)
ID Code:141088
Year Published:2020
Web of Science® Times Cited:1
Deposited By:Oceans and Cryosphere
Deposited On:2020-09-24
Last Modified:2021-04-28
Downloads:5 View Download Statistics

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