Wave climate simulations for Denmark - for paper 'Coinciding storm surge and wave setup: A regional assessment of sea level rise impact'

This wave climate dataset are the results for the paper titled 'Coinciding storm surge and wave setup: A regional assessment of sea level rise impact'.

The operational wave forecasting service provided by DMI-WAM uses the WAM Cycle version 4.5.4, a third-generation spectral wave model. DMI-WAM is used for the wave climate simulations. The meteorological forcing used in this study was obtained from the regional climate model DMI-HIRHAM, developed by the Danish Meteorological Institute (DMI). It is a component of the CORDEX (Coordinated Regional Climate Downscaling Experiment) ensemble in Europe. Regarding the selection of the time frame and IPCC scenarios in our study, we adhered to the recommendations provided by municipalities. Municipalities are keenly interested in obtaining near-future wind wave data for the specific purpose of using them for risk management. Therefore, the examination of forthcoming weather extremes in the near future within the context of the high greenhouse gas emission scenario (RCP8.5 scenario) is of significance within this investigation. We conduct simulations that encompass two distinct time periods: the historical period spanning from 1976 to 2005, and the near-future period from 2041 to 2070. We analyse the WAM model results for wave climate under both present climate conditions (1976-2005) and future climate scenarios (2041-2070) under the RCP8.5 scenario. Furthermore, note that while our wave climate simulations provide valuable insights into the dynamics of wind-induced waves, the mean SLR is not explicitly taken into account. The mean SLR component is considered in the storm surge simulations.

Description of files:

sla.swh.slope.hist.final.max.nc - Maximum sea level, significant wave height, wave length and slope for the historical period.

sla.swh.slope.rcp85.final.max.MSLR35.nc - Maximum sea level, significant wave height, wave length and slope for the RCP8.5 period.

wavesetup.hist.final.max.nc - Maximum wave setup for the historical period.

wavesetup.rcp85.final.max.MSLR35.nc - Maximum wave setup for the RCP8.5 period.

wam.grib.his.swh.98p.nc - 2% exceedence of significant wave height for the historical period.

wam.grib.rcp8.swh.98p.nc - 2% exceedence of significant wave height for the RCP8.5 period.