The data are from multi-decadal hindcast simulation with the wave model WAM 4.5 covering the entire Baltic Sea using a grid size of about 5.5x5.5 km (0.05 degrees latitude x 0.10 degrees longitude). The hindcast covers the period 1958-2002. Integrated parameter derived from 2D spectra are available every hour; the wave spectra are available with a 3-hour time step. Atmospheric forcing was obtained from an atmospheric hindcast with SN-REMO (http://dx.doi.org/10.1594/WDCC/coastDat-1_SN-REMO) driven by the NCEP/NCAR Reanalysis 1 data set (Kalnay et al.,1996). Lateral boundary conditions were obtained from corresponding hindcast for the southern North Sea driven by the same atmospheric forcing (http://dx.doi.org/10.1594/WDCC/coastDat-1_Waves).

The data are from multi-decadal hindcast simulation with the wave model WAM 4.5 covering the Southern North Sea (51-56.5 N and -3W-10.5E) using a grid size of about 5,5x5.5 km (0.05 degrees latitude x 0.10 degrees longitude). The hindcast covers the period 1948-2007. Integrated parameter derived from 2D spectra are available every hour; the wave spectra themselves are available with a 3-hour time step. Atmospheric forcing was obtained from an atmospheric hindcast with SN-REMO driven by the NCEP/NCAR Reanalysis 1 data set. Lateral boundary conditions were obtained from corresponding coarse grid hindcast covering most of the Northeast Atlantic driven by the same atmospheric forcing.

The data are from multi-decadal hindcast simulation with the wave model WAM 4.5 covering the Southern North Sea (51-56.5 N and -3W-10.5E) using a grid size of about 5,5x5.5 km (0.05 degrees latitude x 0.10 degrees longitude). The hindcast covers the period 1948-2007. Integrated parameter derived from 2D spectra are available every hour; the wave spectra themselves are available with a 3-hour time step. Atmospheric forcing was obtained from an atmospheric hindcast with SN-REMO driven by the NCEP/NCAR Reanalysis 1 data set. Lateral boundary conditions were obtained from corresponding coarse grid hindcast covering most of the Northeast Atlantic driven by the same atmospheric forcing.

The data are from multi-decadal hindcast simulation with the wave model WAM 4.5 covering the entire Baltic Sea using a grid size of about 5.5x5.5 km (0.05 degrees latitude x 0.10 degrees longitude). The hindcast covers the period 1958-2002. Integrated parameter derived from 2D spectra are available every hour; the wave spectra are available with a 3-hour time step. Atmospheric forcing was obtained from an atmospheric hindcast with SN-REMO (http://dx.doi.org/10.1594/WDCC/coastDat-1_SN-REMO) driven by the NCEP/NCAR Reanalysis 1 data set (Kalnay et al.,1996). Lateral boundary conditions were obtained from corresponding hindcast for the southern North Sea driven by the same atmospheric forcing (http://dx.doi.org/10.1594/WDCC/coastDat-1_Waves).

This is a wave hindcast for the period 1995 - 2018 covering the North and Baltic Sea. The simulation has been performed with the spectral wave model WAM Version 4.6.2. The model domain covers the area from approx 49.2° N to 66.6° N and 9.8° W to 31.6° E, with a spatial resolution of 0.044 degree latitude x 0.044 degree longitude (approx. 5 by 5 km) on a rotated grid with the coordinates of the rotated north pole 140°W E and 32° N. Integrated parameter derived from 2D spectra are available every hour. Atmospheric forcing was obtained from the COSMO-REA6 regional atmospheric reanalysis (https://rmets.onlinelibrary.wiley.com/doi/abs/10.1002/qj.2486) provided by the German Weather Service (DWD) . Lateral boundary conditions were obtained from corresponding coarse grid hindcast covering most of the Northeast Atlantic driven by the same atmospheric forcing.

This is a wave hindcast for the period 1948 - 2021 covering the North and Baltic Sea. The simulation has been performed with the spectral wave model WAM Version 4.6.2. The model domain covers the area from approx 49.2° N to 66.6° N and 9.8° W to 31.6° E, with a spatial resolution of 0.044 degree latitude x 0.044 degree longitude (approx. 5 by 5 km) on a rotated grid with the coordinates of the rotated north pole 140°W E and 32° N. Integrated parameter derived from 2D spectra are available every hour. Atmospheric forcing was obtained from the coastDat3 COSMO-CLM-NCEP1 regional atmospheric hindcast. Lateral boundary conditions were obtained from corresponding coarse grid hindcast covering most of the Northeast Atlantic driven by the same atmospheric forcing.

These are the wind wave transient scenarios for the North Sea and Baltic Sea for the period 1961-2006 (historical) and 2006-2100 (future). Atmospheric forcing originates from CMIP5 CORDEX EUR-11 regionalized scenarios (https://www.wdc-climate.de/ui/project?acronym=CORDEX_DDS-CMIP5_native-grid). The simulation has been performed with the spectral wave model WAM Version 4.6.2. The model domain covers the area from approx 49.2° N to 66.6° N and 9.8° W to 31.6° E, with a spatial resolution of 0.044 degree latitude x 0.044 degree longitude (approx. 5 by 5 km) on a rotated grid with the coordinates of the rotated north pole 140°W E and 32° N. Integrated parameter derived from 2D spectra are available every hour. Lateral boundary conditions were obtained from corresponding coarse grid simulation covering most of the Northeast Atlantic driven by the same atmospheric forcing.

Timeseries of surface wave peak period data obtained from the MARNET network.

Timeseries of wave mean period data (inverse frequency moment) obtained from the MARNET network.

Timeseries of wave mean period data (second frequency moment) obtained from the MARNET network.