Model output containing ocean, atmospheric and sea ice variables from the zstar_Smag simulation of the HadGEM3-GC5-LM coupled climate model (1976-2035).

This dataset contains monthly means of ocean, atmospheric and sea ice variables from a 60-year (1976-2035) integration of the HadGEM3-GC5-LM coupled model, with fixed year 2000 control atmospheric composition. The archived model output includes monthly means from the NEMO v4.0.4 ocean component on T, U, V and W grids; monthly means from the SI3 sea ice model; and monthly means from the GAL9 atmosphere-land model. In addition, five-day means of the temperature and salinity ("T grid") and of the meridional velocity ("V grid") over a ten-year period are provided: these were used to estimate the total diapycnal mixing. In this simulation the fixed biharmonic viscosity is replaced with biharmonic Smagorinsky viscosity with a coefficient CMSmag=3; it is referred to as “zstar_Smag". The outputs were generated under the Marine LTSS: Climate Linked Atlantic Sector Science (CLASS) project funded by the Natural Environment Research Council (NERC) under reference NE/R015953/1.