Climate of the Past
Climate of the Past
CP
Articles | Volume 20, issue 10
Articles | Volume 20, issue 10
https://doi.org/10.5194/cp-20-2327-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-20-2327-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 10
Research article
 | 
22 Oct 2024
Research article |  | 22 Oct 2024

Dynamical downscaling and data assimilation for a cold-air outbreak in the European Alps during the Year Without a Summer of 1816

Peter Stucki, Lucas Pfister, Yuri Brugnara, Renate Varga, Chantal Hari, and Stefan Brönnimann

Supplement

https://doi.org/10.5194/cp-20-2327-2024-supplement

Data sets

Dynamical downscaling and data assimilation for a cold-air outbreak in the European Alps during the Year Without Summer 1816 Peter Stucki https://doi.org/10.48350/189671

The International Surface Pressure Databank version 4 G. P. Compo et al. https://doi.org/10.5065/9EYR-TY90

Swiss Early Meteorological Observations v2.0 Yuri Brugnara https://doi.org/10.1594/PANGAEA.948258

Early instrumental air pressure and temperature measurements for Rovereto and Bolzano/Bozen (1800-1873) Yuri Brugnara et al. https://doi.org/10.1594/PANGAEA.961277

20th Century Reanalysis Project Ensemble Gateway National Energy Research Scientific Computing Center (NERSC) https://portal.nersc.gov/project/20C_Reanalysis/

Model code and software

Dynamical downscaling and data assimilation for a cold-air outbreak in the European Alps during the Year Without Summer 1816 Peter Stucki https://doi.org/10.48350/189671

WRFDA users page, Tools National Center for Atmospheric Research (NCAR) https://www2.mmm.ucar.edu/wrf/users/wrfda/download/tools.html

suncalc: Compute Sun Position, Sunlight Phases, Moon Position and Lunar Phase Benoit Thieurmel and Achraf Elmarhraoui https://cran.r-project.org/package=suncalc

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Short summary
In our work, we reconstruct the weather of the extremely cold and wet summer in 1816 using a weather forecasting model to obtain high-resolution, three-dimensional weather simulations. We refine our simulations with surface pressure and temperature observations, representing a novel approach for this period. Our results show that this approach yields detailed and accurate weather reconstructions, opening the door to analyzing past weather events and their impacts in detail.
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