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


Contact
Thomas.Opel [ at ] awi.de

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 (last access: 30 July 2020).



Item Type
Article
Authors
Divisions
Primary Division
Programs
Primary Topic
Peer revision
ISI/Scopus peer-reviewed
Publication Status
Published
Eprint ID
53051
DOI 10.5194/essd-12-2261-2020

Cite as
Konecky, B. L. , McKay, N. P. , Churakova (Sidorova), O. V. , Comas-Bru, L. , Dassié, E. P. , DeLong, K. L. , Falster, G. M. , Fischer, M. J. , Jones, M. D. , Jonkers, L. , Kaufman, D. S. , Leduc, G. , Managave, S. R. , Martrat, B. , Opel, T. , Orsi, A. J. , Partin, J. W. , Sayani, H. R. , Thomas, E. K. , Thompson, D. M. , Tyler, J. J. , Abram, N. J. , Atwood, A. R. , Cartapanis, O. , Conroy, J. L. , Curran, M. A. , Dee, S. G. , Deininger, M. , Divine, D. V. , Kern, Z. , Porter, T. J. , Stevenson, S. L. and von Gunten, L. , Iso2k Project Members (2020): The Iso2k database: a global compilation of paleo-δ18O and δ2H records to aid understanding of Common Era climate , Earth System Science Data, 12 (3), pp. 2261-2288 . doi: 10.5194/essd-12-2261-2020


Download
[img]
Preview
PDF
Konecky_2020_ESSD_Iso2k_database_paper.pdf

Download (4MB) | Preview

Share


Citation

Research Platforms
N/A

Campaigns


Actions
Edit Item Edit Item