Climate of the Past
Climate of the Past
CP
Articles | Volume 17, issue 3
Articles | Volume 17, issue 3
https://doi.org/10.5194/cp-17-985-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-17-985-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 3
Research article
 | 
05 May 2021
Research article |  | 05 May 2021

Comparison of the oxygen isotope signatures in speleothem records and iHadCM3 model simulations for the last millennium

Janica C. Bühler, Carla Roesch, Moritz Kirschner, Louise Sime, Max D. Holloway, and Kira Rehfeld

Supplement

https://doi.org/10.5194/cp-17-985-2021-supplement

Data sets

Climate variables and oxygen isotope ratio in precipitation extracted at speleothem sites for three iHadCM3 climate model simulations over the last millennium (810CE-1850CE) Kira Rehfeld, Janica Bühler, Louise C. Sime, and Max D. Holloway https://doi.org/10.1594/PANGAEA.924795

Climate variables and oxygen isotope ratio in precipitation extracted at speleothem sites for three iHadCM3 climate model simulations over the last millennium (810CE-1850CE) (Version v1.0.1) [Data set] Kira Rehfeld and Janica Bühler https://doi.org/10.5281/zenodo.4551065

Model code and software

iHadCM3LastMill Github Repository Janica C. Bühler and Kira Rehfeld https://github.com/paleovar/iHadCM3LastMill

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Short summary
We present three new isotope-enabled simulations for the last millennium (850–1850 CE) and compare them to records from a global speleothem database. Offsets between the simulated and measured oxygen isotope ratios are fairly small. While modeled oxygen isotope ratios are more variable on decadal timescales, proxy records are more variable on (multi-)centennial timescales. This could be due to a lack of long-term variability in complex model simulations, but proxy biases cannot be excluded.
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