The purpose of this model-measurement intercomparison is to allow the international scientific community to evaluate the performance of biogeochemical models normally coupled to general circulation models (GCMs). Through a rigorous set of metrics, terrestrial models are scored based on their performance as compared to best-available site, field, and satellite observations. To this end, we encourage you to provide feedback on the experimental protocol, the metrics used to evaluate model performance, and the observational datasets available for use in the intercomparison.
The objective of the LBA-Model Intercomparison Project (LBA-MIP) is to bring together international biosphere-atmosphere modeling groups to understand how different models simulate the ecosystems and biogeophysical processes in the Amazon of South America. Forcing and validation data were provided by the Large-Scale Biosphere-Atmosphere (LBA) Experiment in Amazonia. The LBA-MIP is the result of discussions held during the Carbon Synthesis Workshop and the 10th LBA-ECO Meeting held in Brasilia in early October 2006. This initiative is led by Luis Gustavo de Goncalves, Inez Fung, Humberto da Rocha and Scott Saleska. For more information, please e-mail the LBA-MIP Organizers.
Included here are diagnostics and analyses of various climate model experiments. The model results include spin-up, control, and transient runs from different configurations of the NCAR Community Climate System Model (CCSM).
The Coupled Carbon Cycle Climate Model Intercomparison Project (C4MIP), a joint project between IGBP-GAIM and WCRP-WGCM, is designed to compare and analyze the feedbacks between the carbon cycle and climate in the presence of external climate forcing. Such feedbacks are likely to be mediated on the one hand by altered forcing of the ocean and terrestrial carbon cycles and on the other by the impact of altered CO2 concentrations in the atmosphere resulting from this forcing. The basic approach is to include models of the terrestrial and ocean carbon cycles in existing OAGCMs and run the augmented model with and without these feedbacks active.
Multivariate Spatio-Temporal Clustering (MSTC) was applied to the monthly time series output from a fully coupled general circulation model (GCM) called the Parallel Climate Model (PCM). Results from an ensemble of five 99-yr Business-As-Usual (BAU) transient simulations from 2000 to 2098 were analyzed. MSTC is a powerful tool for model developers and environmental decision makers who wish to understand long, complex time series predictions of models.
For assistance or additional information, contact Forrest Hoffman
(forrest@climatemodeling.org)