Articles | Volume 19, issue 21
https://doi.org/10.5194/gmd-19-10849-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-10849-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
A simple weather generator that converts statistical information from downscaled global climate models to sequences of daily precipitation and temperature
Rasmus E. Benestad
CORRESPONDING AUTHOR
The Norwegian Meteorological Institute, Henrik Mohns plass 1, Oslo, Norway
Related authors
Andreas Dobler, Rasmus Benestad, Julia Lutz, and Kajsa Maria Parding
EGUsphere, https://doi.org/10.5194/egusphere-2026-207, https://doi.org/10.5194/egusphere-2026-207, 2026
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We propose a framework summarising the scaling of sub-daily to daily wet-spell frequencies and intensities in two single parameters. Results show a shift towards fewer but more intense precipitation hours on rainy days. Our study further demonstrates the values of high-resolution regional climate model simulations for testing hypotheses in contexts where long-term observational networks are lacking, and how empirical-statistical and dynamical downscaling results can be used together.
Rasmus E. Benestad, Kajsa M. Parding, and Andreas Dobler
Hydrol. Earth Syst. Sci., 29, 45–65, https://doi.org/10.5194/hess-29-45-2025, https://doi.org/10.5194/hess-29-45-2025, 2025
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We present a new method to calculate the chance of heavy downpour and the maximum rainfall expected over a 25-year period. It is designed to analyse global climate models' reproduction of past and future climates. For the Nordic countries, it projects a wetter climate in the future with increased intensity but not necessarily more wet days. The analysis also shows that rainfall intensity is sensitive to future greenhouse gas emissions, while the number of wet days appears to be less affected.
Rasmus E. Benestad, Abdelkader Mezghani, Julia Lutz, Andreas Dobler, Kajsa M. Parding, and Oskar A. Landgren
Geosci. Model Dev., 16, 2899–2913, https://doi.org/10.5194/gmd-16-2899-2023, https://doi.org/10.5194/gmd-16-2899-2023, 2023
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A mathematical method known as common EOFs is not widely used within the climate research community, but it offers innovative ways of evaluating climate models. We show how common EOFs can be used to evaluate large ensembles of global climate model simulations and distill information about their ability to reproduce salient features of the regional climate. We can say that they represent a kind of machine learning (ML) for dealing with big data.
Andreas Dobler, Rasmus Benestad, Julia Lutz, and Kajsa Maria Parding
EGUsphere, https://doi.org/10.5194/egusphere-2026-207, https://doi.org/10.5194/egusphere-2026-207, 2026
Short summary
Short summary
We propose a framework summarising the scaling of sub-daily to daily wet-spell frequencies and intensities in two single parameters. Results show a shift towards fewer but more intense precipitation hours on rainy days. Our study further demonstrates the values of high-resolution regional climate model simulations for testing hypotheses in contexts where long-term observational networks are lacking, and how empirical-statistical and dynamical downscaling results can be used together.
Rasmus E. Benestad, Kajsa M. Parding, and Andreas Dobler
Hydrol. Earth Syst. Sci., 29, 45–65, https://doi.org/10.5194/hess-29-45-2025, https://doi.org/10.5194/hess-29-45-2025, 2025
Short summary
Short summary
We present a new method to calculate the chance of heavy downpour and the maximum rainfall expected over a 25-year period. It is designed to analyse global climate models' reproduction of past and future climates. For the Nordic countries, it projects a wetter climate in the future with increased intensity but not necessarily more wet days. The analysis also shows that rainfall intensity is sensitive to future greenhouse gas emissions, while the number of wet days appears to be less affected.
Rasmus E. Benestad, Abdelkader Mezghani, Julia Lutz, Andreas Dobler, Kajsa M. Parding, and Oskar A. Landgren
Geosci. Model Dev., 16, 2899–2913, https://doi.org/10.5194/gmd-16-2899-2023, https://doi.org/10.5194/gmd-16-2899-2023, 2023
Short summary
Short summary
A mathematical method known as common EOFs is not widely used within the climate research community, but it offers innovative ways of evaluating climate models. We show how common EOFs can be used to evaluate large ensembles of global climate model simulations and distill information about their ability to reproduce salient features of the regional climate. We can say that they represent a kind of machine learning (ML) for dealing with big data.
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Short summary
The paper presents two weather generators, one that generates sequences of daily precipitation based on two key statistical parameters and another that generates sequences of daily temperature based on the mean and standard deviation. They enable the use of downscaled projections of precipitation and temperature statistics for impact studies, such as hydrological modelling.
The paper presents two weather generators, one that generates sequences of daily precipitation...
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