10.5676/dwd/seasonal-epi-de_v2025.01_qa

Title

3-monthly anomalies and quality assessment of seasonal climate predictions for Germany (EPISODES) version 2025.01

Citation

Hoff, Amelie; Wehring, Sabrina; Fröhlich, Kristina; Lorenz, Philip; Paxian, Andreas; Kreienkamp, Frank; Früh, Barbara (2025):
3-monthly anomalies and quality assessment of seasonal climate predictions for Germany (EPISODES) version 2025.01

Creators

Hoff, Amelie; Wehring, Sabrina; Fröhlich, Kristina; Lorenz, Philip; Paxian, Andreas; Kreienkamp, Frank; Früh, Barbara

Publisher

Deutscher Wetterdienst (DWD, http://www.dwd.de/EN/)

Publication Year

2025

Summary

The 3-monthly anomalies (for months 1-3, 2-4, 3-5 and 4-6), the mean squared errors (mse) and the Pearson correlation coefficients (corr_pea) are calculated for the seasonal climate predictions of the German Climate Forecast System GCFS2.2 which are downscaled over Germany using the empirical-statistical downscaling method DWD-EPISODES version 2022. The 3-monthly anomalies and the corresponding quality measures are available on a Germany-wide grid of about 10 km x 10 km (regular 0.15° x 0.1° grid). The anomalies of the following variables are included in the data set: air temperature 2 m (daily mean: tasAnom, daily maximum: tasmaxAnom, daily minimum: tasminAnom), precipitation (prAnom), relative humidity 2 m (hursAnom), global radiation (rsdsAnom), cloud area fraction (cltAnom), sea level pressure (pslAnom), and wind speed 10 m (sfcWindAnom). The 3-monthly anomalies are calculated in comparison to the climate time period from 1991 to 2020.

The German Climate Forecast System is described by: Fröhlich, K., Dobrynin, M., Isensee, K. et al. (2021). The german climate forecast system: GCFS. Journal of Advances in Modeling Earth Systems, 13. DOI: 10.1029/2020MS002101

The empirical-statistical downscaling method EPISODES is described by: Kreienkamp, F., Paxian, A., Früh, B. et al. (2019). Evaluation of the empirical-statistical downscaling method EPISODES. Clim Dyn, 52, 991-1026. DOI: 10.1007/s00382-018-4276-2.

Kreienkamp, F., Lorenz, P., Geiger, T. (2020). Statistically Downscaled CMIP6 Projections Show Stronger Warming for Germany. Atmosphere 11, 1245. DOI: 10.3390/atmos11111245. The latest EPISODES version 2022 contains minor bug fixes and technical updates for climate predictions.

Version

v2025.01

Temporal Coverage

January 2024 to present

Temporal Resolution

3-monthly

Update Frequency

Monthly

Spatial Coverage

Deutschland - DE-015x01 (Deutschland auf einem regulären Gitter von 0.15° x 0.1°, approx. 10 km x 10 km)

Data Format

netcdf-4

Licence

keine Zugriffsbeschränkungen; no Limitations; Creative Commons Attribution 4.0 International; Creative Commons Attribution 4.0 International; Es gelten die Bedingungen der Lizenz Creative Commons BY 4.0 'CC BY 4.0'.; The Creative Commons BY 4.0 - Licence 'CC BY 4.0' apply.
http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/noLimitations; http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/noLimitations; https://creativecommons.org/licenses/by/4.0/legalcode; https://creativecommons.org/licenses/by/4.0/legalcode; https://www.dwd.de/copyright; https://www.dwd.de/copyright

Contact

Zentrales Klimabüro
Deutscher Wetterdienst
Frankfurter Straße 135
D-63067 Offenbach/Main
GERMANY
e-mail: klima.offenbach@dwd.de
Tel.: + 49 (0)69 / 8062-2912

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