In Phase II of AeroCom, a large -
scale model intercomparison was performed to document the current state of OA modeling in the global troposphere, evaluate the OA simulations by comparison with observations, identify weaknesses that still exist in models, explain the agreements and disagreements between models and observations, and attempt to identify and analyze potential systematic biases in the models.
Not exact matches
Analysis of simple
models and
intercomparisons of AOGCM responses to idealised forcing scenarios suggest that, for most scenarios over the coming decades, errors in large -
scale temperature projections are likely to increase in proportion to the magnitude of the overall response.
Knowledge of dominant
scales associated with mesoscale eddies enables a better understanding of the resolution requirements for the Coupled
Model Intercomparison Project, the framework used for comparison of global coupled ocean - atmosphere general circulation
models.
Since the TAR, EMICs have been evaluated via several coordinated
model intercomparisons which have revealed that, at large
scales, EMIC results compare well with observational data and AOGCM results.
Analysis of simple
models and
intercomparisons of AOGCM responses to idealised forcing scenarios suggest that, for most scenarios over the coming decades, errors in large -
scale temperature projections are likely to increase in proportion to the magnitude of the overall response.
GCM results are used: «The large -
scale thermodynamic boundary conditions for the experiments — atmospheric temperature and moisture profiles and SSTs — are derived from nine different Coupled
Model Intercomparison Project (CMIP2 +) climate
models.»
«In reality climate
models have been tested on multicentennial time
scales against paleoclimate data (see the most recent PMIP
intercomparisons) and do reasonably well at simulating small Holocene climate variations, and even glacial - interglacial transitions.
e.g., An
intercomparison exercise on the capabilities of CFD
models to reproduce a large -
scale hydrogen deflagration in open atmosphere
But running point
scale intercomparisons of the sort Koutsoyiannis did tells you little about the validity of the
model with respect to the purpose for which it is designed; but does underline the limits of global
models for regional climate work.
Large
scale features of the Pliocene climate: results from the Pliocene
Model Intercomparison Project