This dataset includes simulation output with the ocean model BLOM (Bergen Layered Ocean Model, the ocean component of NorESM) for the last 5-years of simulation time. In addition to the output, we also provide the namelist files (*limits) as well as initial conditions, and restarts for the years 10 and 15 of the simulation. There are altogether 9 simulations, named exp1-exp9, and the archived variables are temperature (temp), layer pressure thickness (dp), layer thickness (dz), velocity components (uvel, vvel), as well as mass and heat transport components (uflx, vflx, and uflx and vhflx, respectively) with daily frequency. With this data, it will be possible to reconstruct the analysis done in the paper.