Simulated seasonal sea surface temperature, subsurface ocean temperature, and sea ice distribution for selected periods of the last two glacial cycles

We present seasonal averages of simulated sea surface temperature, subsurface ocean temperature (220 m depth), and sea ice distribution for six time slices within five different orbitally controlled climate states of the Quaternary: pre-industrial (1850 CE), mid-Holocene (6 ka BP), Last Glacial Maximum (21 ka BP), Last Interglacial (at 125 and 128 ka BP), and Penultimate Glacial Maximum (140 ka BP). Simulations have been conducted with the COSMOS suite of climate models that provide a coupled representation of atmosphere and ocean general circulation. Model physics are augmented with climate-vegetation dynamics. Simulations follow the PMIP3 framework and consider reconstructions of greenhouse gas concentrations and of orbital configuration for the respective time periods. Paleogeography is adapted following protocols for the PMIP3 modelling protocol for the Last Glacial Maximum and the PMIP4 protocol for the Last Interglacial. Our model data may be useful for understanding dynamic patterns behind reconstructions of marine temperature and sea ice cover. This data publication supports a scientific publication by Khoo et al. (2024) who provide further information on the modelling methodology.