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https://doi.org/10.5194/essd-2020-5
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2020-5
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: data description paper 05 Feb 2020

Submitted as: data description paper | 05 Feb 2020

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This preprint is currently under review for the journal ESSD.

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

Bronwen L. Konecky1, Nicholas P. McKay2, Olga V. Churakova (Sidorova)3, Laia Comas-Bru4, Emilie P. Dassié5, Kristine L. DeLong6, Georgina M. Falster1, Matt J. Fischer7, Matthew D. Jones8, Lukas Jonkers9, Darrell S. Kaufman2, Guillaume Leduc10, Shreyas R. Managave11, Belen Martrat12, Thomas Opel13, Anais J. Orsi14, Judson W. Partin15, Hussein R. Sayani16, Elizabeth K. Thomas17, Diane M. Thompson18, Jonathan J. Tyler19, Nerilie J. Abram20, Alyssa R. Atwood21, Jessica L. Conroy22, Zoltán Kern23, Trevor J. Porter24, Samantha L. Stevenson25, Lucien von Gunten26, and the Iso2k Project Members Bronwen L. Konecky et al.
  • 1Department of Earth and Planetary Sciences, Washington University, Saint Louis, Missouri, 63108, USA
  • 2School of Earth and Sustainability, Northern Arizona University, Flagstaff, AZ, 86011, USA
  • 3Institute of Ecology and Geography, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation & Department of Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, 8903, Switzerland
  • 4School of Archaeology, Geography & Environmental Sciences, University of Reading, Reading, Berkshire, UK
  • 5EPOC Laboratory, University of Bordeaux, France, 33615, France
  • 6Department of Geography and Anthropology, Coastal Studies Institute, Louisiana State University, Baton Rouge, LA, 70803, USA
  • 7NSTLI Environment, ANSTO, Sydney, NSW, 2234, Australia
  • 8School of Geography, University of Nottingham, Nottingham, NG7 2RD, UK
  • 9MARUM Center for Marine Environmental Sciences, Bremen University, Bremen, 28359, Germany
  • 10Aix Marseille University, CNRS, IRD, INRAE, Coll France, CEREGE, Aix-en-Provence, 13545, France
  • 11Earth and Climate Science, Indian Institute of Science Education and Research, Pune, Maharashtra, 411008, India
  • 12Department of Environmental Chemistry, Spanish Council for Scientific Research (CSIC), Institute of Environmental Assessment and Water Research (IDAEA), Barcelona, Barcelona, 08034, Spain
  • 13Polar Terrestrial Environmental Systems and PALICE Helmholtz Young Investigator Group, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, 14473, Germany
  • 14L-IPSL, CEA-CNRS-UVSQ-Université Paris Saclay, Laboratoire des Sciences du Climat et de L'Environnement, Gif Sur Yvette, 91191, France
  • 15nstitute for Geophysics, University of Texas at Austin, Austin, TX, 78758, USA
  • 16School of Earth and Atmospheric Science, Georgia Institute of Technology, Atlanta, GA, 30332, USA
  • 17Department of Geology, University at Buffalo, Buffalo, NY, 14260, USA
  • 18Department of Geosciences, University of Arizona, Tucson, Arizona, 85719, USA
  • 19Department of Earth Sciences, The University of Adelaide, Adelaide, South Australia, 5005, Australia
  • 20Research School of Earth Sciences and Centre of Excellence for Climate Extremes, Australian National University, Canberra, ACT, 2601, Australia
  • 21Department of Earth, Ocean, and Atmospheric Sciences, Florida State University, Tallahassee, Florida, 32306, USA
  • 22Department of Geology, University of Illinois at Urbana-Champaign, Urbana, IL, 61822, USA
  • 23Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences, MTA Centre for Excellence, Budapest, H-1112, Hungary
  • 24Department of Geography, University of Toronto - Mississauga, Mississauga, Ontario, L5L1C6, Canada
  • 25Bren School of Environmental Science & Management, University of California, Santa Barbara, Santa Barbara, CA, 93106, USA
  • 26PAGES International Project Office, Bern, 3012, Switzerland
  • A full list of authors appears at the end of the paper.

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 composition of environmental waters, which reflect hydroclimate changes over the CE. The Iso2k database contains 756 isotope records from the terrestrial and marine realms, including: glacier and ground ice (205); speleothems (68); corals, sclerosponges, and mollusks (145); 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 non-experts 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/10.6084/m9.figshare.11553162 (McKay and Konecky, 2020).

Bronwen L. Konecky et al.

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