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Title: SISALv2: a comprehensive speleothem isotope database with multiple age–depth models
Authors: Comas-Bru, Laia
Rehfeld, Kira
Roesch, Carla
Amirnezhad-Mozhdehi, Sahar
Harrison, Sandy P.
Atsawawaranunt, Kamolphat
Masood Ahmad, Syed
Ait Brahim, Yassine
Baker, Andy
Bosomworth, Matthew
Breitenbach, Sebastian F. M.
Burstyn, Yuval ‎
Columbu, Andrea
Deininger, Michael ‎
Demény, Attila
Dixon, Bronwyn
Fohlmeister, Jens
Hatvani, István Gábor ‎
Hu, Jun
Kaushal, Nikita
Kern, Zoltán
Labuhn, Inga
Lechleitner, Franziska Anna
Lorrey, Andrew M.
Martrat, Belen
Novello, Valdir Felipe
Oster, Jessica
Pérez-Mejías, Carlos
Scholz, Denis ‎
Scroxton, Nick
Sinha, Nitesh
Ward, Brittany Marie
Warken, Sophie Friederike
Zhang, Haiwei
SISAL Working Group members
Issue Date: Oct-2020
Publisher: Copernicus Publications
Citation: Earth System Science Data, 2020, 12 (4), 2579-2606
Abstract: Characterizing the temporal uncertainty in palaeoclimate records is crucial for analysing past climate change, correlating climate events between records, assessing climate periodicities, identifying potential triggers and evaluating climate model simulations. The first global compilation of speleothem isotope records by the SISAL (Speleothem Isotope Synthesis and Analysis) working group showed that age model uncertainties are not systematically reported in the published literature, and these are only available for a limited number of records (ca. 15 %, n=107/691). To improve the usefulness of the SISAL database, we have (i) improved the database's spatio-temporal coverage and (ii) created new chronologies using seven different approaches for age–depth modelling. We have applied these alternative chronologies to the records from the first version of the SISAL database (SISALv1) and to new records compiled since the release of SISALv1. This paper documents the necessary changes in the structure of the SISAL database to accommodate the inclusion of the new age models and their uncertainties as well as the expansion of the database to include new records and the quality-control measures applied. This paper also documents the age–depth model approaches used to calculate the new chronologies. The updated version of the SISAL database (SISALv2) contains isotopic data from 691 speleothem records from 294 cave sites and new age–depth models, including age–depth temporal uncertainties for 512 speleothems. SISALv2 is available at (Comas-Bru et al., 2020a).
ISSN: 1866-3508
DOI: 10.5194/essd-12-2579-2020
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Type: Article
Appears in Collections:Geocronología y Geología

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