Cyclone tracks from 1901 to 2010 in dynamically downscaled ERA-20C reanalysis (COSMO-CLM+NEMO)

The database contains two files: one with all cyclone trajectories from 1901 to 2010, and another one only with the so-called Vb-cyclones that propagate from the Mediterranean Sea north-eastward to Central Europe. We detected the cyclone trajectories with the method of Wernli and Schwierz (2006) and Sprenger et al. (2017) and classified all cyclone trajectories that crossed the 47°N latitude between 12°E and 22°E as Vb-cyclones following Hofstätter and Blöschl (2019). The cyclone tracking was based on mean sea level pressure data of dynamically downscaled ERA-20C reanalysis. The downscaling was performed over Europe [including MED-CORDEX (Somot et al. 2018) and EURO-CORDEX (Giorgi et al. 2009)] from 1901 to 2010 with an interactively coupled high-resolution atmosphere-ocean model (COSMO-CLM+NEMO) by Cristina Primo. More details on the data basis can be found in Primo et al. (2019) and Krug et al. (2020). Giorgi, F., Jones, C. & Asrar, G. Addressing climate information needs at the regional level: the CORDEX framework. WMO Bulletin 58, 175–183 (2009). Hofstätter, M. & Blöschl, G. Vb Cyclones Synchronized With the Arctic-/North Atlantic Oscillation. J. Geophys. Res. Atmos. 124, 3259–3278 (2019). Krug, A., Primo, C., Fischer, S., Schumann, A. & Ahrens, B. On the temporal variability of widespread rain-on-snow floods. Meteorol. Zeitschrift 29, 147–163 (2020). Primo, C., Kelemen, F. D., Feldmann, H., Akhtar, N. & Ahrens, B. A regional atmosphere-ocean climate system model (CCLMv5.0clm7-NEMOv3.3-NEMOv3.6) over Europe including three marginal seas: on its stability and performance. Geosci. Model Dev. 12, 5077–5095 (2019). Somot, S. et al. Editorial for the Med-CORDEX special issue. Clim. Dyn. 51, 771–777 (2018). doi: 10.1007/s00382-018-4325-x Sprenger, M. et al. Global climatologies of Eulerian and Lagrangian flow features based on ERA-Interim. Bull. Am. Meteorol. Soc. (2017). doi:10.1175/BAMS-D-15-00299.1 Wernli, H. & Schwierz, C. Surface Cyclones in the ERA-40 Dataset (1958–2001). Part I: Novel Identification Method and Global Climatology. J. Atmos. Sci. 63, 2486–2507 (2006).Amelie Krug and Bodo Ahrens acknowledge support by the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) in terms of the research group FOR 2416 Space–Time Dynamics of Extreme Floods (SPATE). This work used resources of the Deutsches Klimarechenzentrum (DKRZ) granted by its Scientific Steering Committee (WLA) under project ID bb1064