Project: coastDat-4 - CoastDat-4 (https://www.coastdat.de/about_us/) comprises a compilation of consistent hindcasts obtained from numerical models. The dataset's atmospheric part is simulated using the COSMO in CLimate Mode version 6 (http://www.clm-community.eu) with different boundary conditions. The objective is to provide a consistent meteo-marine data set. This new data set should be understood as an upgrade of the coastDat-3 data. Summary: Hindcast atmospheric simulation for the North Sea using COSMO6.0-CLM version driven with ERA5 reanalysis data. The covered period is from 2012 to 2022 with hourly frequency output. The model uses a rotated grid with 356 x 396 grid points and a grid spacing of 0.02 degrees, the rotated North pole is located at 180 W, 30 N. We gratefully acknowledge financial support through the H2Mare PtX-Wind project with funds provided by the Federal Ministry of Education and Research (BMBF) under Grant No. 03HY302J.
