MESMER v1.0.0: consolidating the modular Earth system model emulator into a sustainable research software package

Bauer, Victoria M.; Hauser, Mathias; Quilcaille, Yann; Schöngart, Sarah; Gudmundsson, Lukas; Seneviratne, Sonia I.

doi:10.5194/gmd-19-5669-2026

Articles | Volume 19, issue 12

https://doi.org/10.5194/gmd-19-5669-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-19-5669-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 12

Development and technical paper

|

29 Jun 2026

Development and technical paper |

| 29 Jun 2026

MESMER v1.0.0: consolidating the modular Earth system model emulator into a sustainable research software package

Victoria M. Bauer, Mathias Hauser, Yann Quilcaille, Sarah Schöngart, Lukas Gudmundsson, and Sonia I. Seneviratne

Data sets

Parametrizations for MESMER v1.0.0 Y. Quilcaille et al. https://doi.org/10.3929/ethz-c-000798034

Model code and software

MESMER-group/mesmer: version v1.0.0 M. Hauser et al. https://doi.org/10.5281/zenodo.20156753

Analysis scripts for MESMER v1.0.0: Consolidating the Modular Earth System Model Emulator into a Sustainable Research Software Package V. Bauer et al. https://doi.org/10.5281/zenodo.20153653

Short summary

MESMER is a Python-based climate emulator that provides spatially resolved realizations of multiple climate variables. Version 1.0.0 of MESMER consolidates previous emulation methods into one numerically stable, well-documented, and user-friendly software package. It can generate large ensembles of annual and monthly mean temperatures, as well as several climate extreme indicators, within minutes. The software is shared together with pre-calibrated parameters to enable broad community adoption.