Articles | Volume 16, issue 3
https://doi.org/10.5194/gmd-16-907-2023
https://doi.org/10.5194/gmd-16-907-2023
Development and technical paper
 | 
06 Feb 2023
Development and technical paper |  | 06 Feb 2023

The pseudo-global-warming (PGW) approach: methodology, software package PGW4ERA5 v1.1, validation, and sensitivity analyses

Roman Brogli, Christoph Heim, Jonas Mensch, Silje Lund Sørland, and Christoph Schär

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Cited articles

Adachi, S. A. and Tomita, H.: Methodology of the Constraint Condition in Dynamical Downscaling for Regional Climate Evaluation: A Review, J. Geophys. Res.-Atmos., 125, e2019JD032166, https://doi.org/10.1029/2019JD032166, 2020. a, b, c
Adachi, S. A., Kimura, F., Kusaka, H., Inoue, T., and Ueda, H.: Comparison of the Impact of Global Climate Changes and Urbanization on Summertime Future Climate in the Tokyo Metropolitan Area, J. Appl. Meteorol. Clim., 51, 1441–1454, https://doi.org/10.1175/JAMC-D-11-0137.1, 2012. a
Baldauf, M., Seifert, A., Förstner, J., Majewski, D., Raschendorfer, M., and Reinhardt, T.: Operational Convective-Scale Numerical Weather Prediction with the COSMO Model: Description and Sensitivities, Mon. Weather Rev., 139, 3887–3905, https://doi.org/10.1175/MWR-D-10-05013.1, 2011. a, b
Boé, J., Somot, S., Corre, L., and Nabat, P.: Large discrepancies in summer climate change over Europe as projected by global and regional climate models: causes and consequences, Clim. Dynam., 54, 2981–3002, https://doi.org/10.1007/s00382-020-05153-1, 2020. a
Bosshard, T., Kotlarski, S., Ewen, T., and Schär, C.: Spectral representation of the annual cycle in the climate change signal, Hydrol. Earth Syst. Sci., 15, 2777–2788, https://doi.org/10.5194/hess-15-2777-2011, 2011. a
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Short summary
The pseudo-global-warming (PGW) approach is a downscaling methodology that imposes the large-scale GCM-based climate change signal on the boundary conditions of a regional climate simulation. It offers several benefits in comparison to conventional downscaling. We present a detailed description of the methodology, provide companion software to facilitate the preparation of PGW simulations, and present validation and sensitivity studies.