Articles | Volume 17, issue 3
Clim. Past, 17, 1119–1138, 2021
https://doi.org/10.5194/cp-17-1119-2021
Clim. Past, 17, 1119–1138, 2021
https://doi.org/10.5194/cp-17-1119-2021

Research article 04 Jun 2021

Research article | 04 Jun 2021

A data–model approach to interpreting speleothem oxygen isotope records from monsoon regions

Sarah E. Parker et al.

Data sets

SISAL (Speleothem Isotopes Synthesis and AnaLysis Working Group) database version 2.0 Laia Comas-Bru, Kamolphat Atsawawaranunt, Sandy Harrison, and SISAL working group members https://doi.org/10.17864/1947.256

ECHAM5-wiso simulation data – present-day, mid-Holocene, and Last Glacial Maximum Martin Werner https://doi.org/10.1594/PANGAEA.902347

Simulating climate and stable water isotopes during the last interglacial using a coupled climate-isotope model, link to model results Paul Gierz, Martin Werner, and Gerrit Lohmann https://doi.org/10.1594/PANGAEA.879229

OIPC mean annual δ18Oprecip data Waterisotopes Database http://waterisotopes.org

CRU TS4.01: Climatic Research Unit (CRU) Time-Series (TS) version 4.01 of high-resolution gridded data of month-by-month variation in climate (Jan. 1901-Dec. 2016) I. C. Harris and P. D. Jones https://doi.org/10.5285/58a8802721c94c66ae45c3baa4d814d0

Model code and software

SarahParker44/speleothem_orbital_monsoon_var Sarah Parker https://doi.org/10.5281/zenodo.3875496

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Short summary
Regional trends in the oxygen isotope (δ18O) composition of stalagmites reflect several climate processes. We compare stalagmite δ18O records from monsoon regions and model simulations to identify the causes of δ18O variability over the last 12 000 years, and between glacial and interglacial states. Precipitation changes explain the glacial–interglacial δ18O changes in all monsoon regions; Holocene trends are due to a combination of precipitation, atmospheric circulation and temperature changes.