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SISALv2: a comprehensive speleothem isotope database with multiple age-depth models

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Title
SISALv2: a comprehensive speleothem isotope database with multiple age-depth models
Author(s)
Comas-Bru, Laia; Rehfeld, Kira; Roesch, Carla; Amirnezhad-Mozhdehi, Sahar; Harrison, Sandy P.; Atsawawaranunt, Kamolphat; Ahmad, Syed Masood; Brahim, Yassine Ait; Baker, Andy; Bosomworth, Matthew; Breitenbach, Sebastian F. M.; Burstyn, Yuval; Columbu, Andrea; Deininger, Michael; Demeny, Attila; Dixon, Bronwyn; Fohlmeister, Jens; Hatvani, Istvan Gabor; Hu, Jun; Kaushal, Nikita; Kern, Zoltan; Labuhn, Inga; Lechleitner, Franziska A.; Lorrey, Andrew; Martrat, Belen; Novello, Valdir Felipe; Oster, Jessica; Perez-Mejias, Carlos; Scholz, Denis; Scroxton, Nick; Nitesh Sinha; Ward, Brittany Marie; Warken, Sophie; Zhang, Haiwei
Publication Date
2020-10
Journal
EARTH SYSTEM SCIENCE DATA, v.12, no.4, pp.2579 - 2606
Publisher
COPERNICUS GESELLSCHAFT MBH
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 agedepth 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).
URI
https://pr.ibs.re.kr/handle/8788114/10566
DOI
10.5194/essd-12-2579-2020
ISSN
1866-3508
Appears in Collections:
Center for Climate Physics(기후물리 연구단) > 1. Journal Papers (저널논문)
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