Calibrated Parameters

Calibrated Parameters#

We provide calibrated parameters for several variables:

  • MESMER:

    • annual mean air temperature (tas)

  • MESMER-M:

    • monthly mean air temperature (tas)

  • MESMER-X:

    • annual maximum of daily maximum air temperature (txx)

    • annual average of soil moisture (mrso)

    • annual minimum of the monthly average soil moisture (mrso_minmon)

    • annual maximum of the Fire Weather Index (fwixx)

    • seasonal average of the Fire Weather Index (fwisa)

    • annual number of days with extreme fire weather (fwixd)

    • length of the fire season (fwils)

The parameters can be downloaded from the ETH Research Collection (Quillcaille et al., 2026). Please use the the parameters in the folders ending in _v1 (and not the ones ending in _v1.large). They can be used under the Creative Commons Attribution 4.0 International License (CC BY 4.0).

Calibration#

The parameters have been calibrated for 58 Earth System Models contributing to the Coupled Model Intercomparison Project Phase 6 (Eyring et al., 2016), using the near surface temperature of all available initial condition members of the shared socioeconomic pathways (SSPs) SSP1-1.9, SSP1-2.6, SSP2-4.5, SSP3-7.0, SSP4-6.0, SSP5-8.5, and SSP5-3.4-OS and their matching historical members as predictor. The model data has been preprocessed according to Brunner et al. (2020). The version of MESMER used to calibrate the parameters is v1.0.0. The scripts to calibrate the parameters are available on Zenodo: (Bauer et al., 2026).

References#

  • Quilcaille, Y., Bauer, V., Hauser, M., Schöngart, S., Gudmundsson, L., & Seneviratne, S. I. (2026). Parametrizations for MESMER v1.0.0 [Application/zip,application/netcdf]. ETH Zurich. https://doi.org/10.3929/ETHZ-C-000798034

  • Eyring, V., Bony, S., Meehl, G. A., Senior, C. A., Stevens, B., Stouffer, R. J., & Taylor, K. E. (2016). Overview of the Coupled Model Intercomparison Project Phase 6 (CMIP6) experimental design and organization. Geoscientific Model Development, 9(5), 1937–1958. https://doi.org/10.5194/GMD-9-1937-2016

  • Brunner, L., Hauser, M., Lorenz, R., & Beyerle, U. (2020). The ETH Zurich CMIP6 next generation archive: Technical documentation (Version v1.0-final). Zenodo. https://doi.org/10.5281/zenodo.3734128

  • Bauer, V., Quilcaille, Y., & Hauser, M. (2026). Analysis scripts for MESMER v1.0.0: Consolidating the Modular Earth System Model Emulator into a Sustainable Research Software Package (Version v5). Zenodo. https://doi.org/10.5281/zenodo.20153653