CLIMATE VARIABILITY AND CHANGE SINCE 850 CE An Ensemble Approach with the Community Earth System Model

The Community Earth System Model-Last Millennium Ensemble (CESM-LME) modeling project gives the research community a resource for better understanding both proxy records and climate variability and change since 850 CE. The Community Earth System Model-Last Millennium Ensemble (CESM-LME) expands on the CMIP5 and earlier LM model simulations by providing the largest ensemble of LM simulations with a single model to date. The CESM-LME uses the CMIP5 climate forcing reconstructions and contains both full forcing simulations containing all LM forcings, and ensembles of simulations with each forcing individually. This ensemble approach, using the most current version of the comprehensive CESM allows the CESM-LME to provide a counterpart to the previous multimodel studies.