paleoWeather: CESM-HR simulations with water isotopes for the Last Glacial Maximum

The other datasets represent the Preindustrial, mid-Piacenzian Warm Period, and two Early Eocene Climatic Optimum. Establishing separate GDEX dataset records for each period will allow the respective leads who set up and ran the simulations to serve as leads for the corresponding DOI. Each GDEX landing page will include links to the other paleo-Weather simulations, enabling discovery and comparison across climate periods.

To our knowledge, the ASD paleo-Weather collection represents the first high-resolution paleo-climate simulation suite of this kind made available to the community. Its horizontal grid spacing is approximately ten times finer than traditional climate-model configurations, which typically use resolutions of 1 to 2 degrees. The CESM-HR resolution more realistically represents synoptic- and mesoscale atmospheric and oceanic phenomena, together with their interactions with large-scale circulation.

The LGM dataset will support research on weather/climate interactions in a cold-climate state, including studies of extreme events such as heat waves, atmospheric rivers, and tropical cyclones. More broadly, the paleo-Weather simulations complement the MESACLIP historical and future simulations, providing opportunities to investigate links between climate and weather extremes across past, present, and future climate states.