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Model Experiments
Most of our model experiments use the NCAR CCSM3, a state of the art climate system model. For more information on the model, please see CCSM Resources.
- Volcanic experiments: We are comparing the climatic responses of tropical and high latitude large, explosive volcanic eruptions. We have conducted two sets of experiments for 1250-1300, likely the most volcanically perturbed half century of the last millennium. The first set consists of three, 50 year long ensemble members with tropical volcanic forcing. The second set consists of three, 50-year long ensemble members with high-latitude volcanic forcing.
- Solar experiments: We are conducting experiments to examine the sensitivity to variations in solar activity, corresponding to the 900-1000 AD period.
- Control experiment: This experiment is set with constant forcing to mimic pre-industrial conditions corresponding to roughly 1750 AD.
- Full forcing experiment: We will conduct at least one simulation that includes full forcing for roughly 850-1300 AD, corresponding to a warm period across much of the Arctic.
Forcing data
This figure shows the primary forcing factors over the past 1200 years.
Timeseries of forcing factors (solar, volcanic, greenhouse gases) used in model simulations.
Results
Listing of each simulation conducted, with links to basic atmospheric model diagnostics and variables.
For additional results, please see publications or contact us.
