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SISALv2: A comprehensive speleothem isotope database with multiple age-depth models
Authors
Syed Masood Ahmad
Sahar Amirnezhad-Mozhdehi
+33 more
Kamolphat Atsawawaranunt
Andy Baker
Matthew Bosomworth
Yassine Ait Brahim
Sebastian F.M. Breitenbach
Yuval Burstyn
Andrea Columbu
Laia Comas-Bru
Michael Deininger
Attila Demény
Bronwyn Dixon
Valdir Felipe Novello
Jens Fohlmeister
Sandy P. Harrison
István Gábor Hatvani
Jun Hu
Nikita Kaushal
Zoltán Kern
Inga Labuhn
Franziska A. Lechleitner
Andrew Lorrey
Belen Martrat
Jessica Oster
Carlos Pérez-Mejías
Kira Rehfeld
Carla Roesch
Denis Scholz
Nick Scroxton
Nitesh Sinha
SISAL Working Group members
Brittany Marie Ward
Sophie Warken
Haiwei Zhang
Publication date
1 January 2020
Publisher
Katlenburg-Lindau : Copernics Publications
Doi
Cite
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 spatiooral 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 qualitycontrol 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 https://doi.org/10.17864/1947.256 (Comas-Bru et al., 2020a). © 2020 Author(s)
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Last time updated on 23/07/2022