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Here a campaign (REYNOLDS, funded by the German Federal Ministry for Education and Research, chief-scientist Hans Ulrich Lass, IOW) in the Eastern Bornholm Basin (55 deg 35' N, 16 deg 39' E, mean water depth: 55 m) is simulated. The simulation period is August 30, 2001 at 17 h to September 9, 2001 at 14 h. The water column is characterised by a thermocline at about 25 m depth and a halocline at about 50 m depth. The simulation period is charaterised by storms up to 0.2 N/m2. As forcing, surface stress, heat fluxes and solar radiation have been calculated on the basis of meteorological observations according to Kondo (1975). The barotropic pressure gradient has been recalculated from vertically averaged observed velocity profiles, see Burchard (1999) for this method. As initial conditions, observed temperature, salinity and velocity profiles are used. Additionally the vertical velocity at the thermocline has been diagnosed from temperature observations and is used for vertical advection. The turbulent dissipation rate has been observed during two sub-periods, such that turbulence model results may be compared with observations. So far, these data have not yet been published. References: Burchard, H., 1999: Recalculation of surface slopes as forcing for numerical water column models of tidal flow, Appl. Math. Modelling, 23, 737-755. Kondo, J., 1975: Air-sea bulk transfer coefficients in diabatic conditions, Bound. Layer Meteor., 9, 91-112.