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Global Aerosol Microphysics Models Put to the Test. Objective To understand how much complexity is needed to simulate the global distribution of aerosols Approach Collect aerosol distributions simulated by 12 global aerosol models with diverse representations of the aerosol size distribution
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Global Aerosol Microphysics Models Put to the Test • Objective • To understand how much complexity is needed to simulate the global distribution of aerosols • Approach • Collect aerosol distributions simulated by 12 global aerosol models with diverse representations of the aerosol size distribution • Evaluate all simulations • Compare performance using simple and complex representations of the aerosol size distribution Aerosol size distribution simulated with a small number of modes is comparable to that simulated with many size bins. • Impact • Complex representations predict the aerosol for a large number of size bins, while simple treatments predict the number and mass concentrations for each of a small number of modes • All aerosol models simulated many aspects of the observed distribution of the aerosol realistically, but also suffered from consistent biases in some regions. Mann et al. 2014. “Intercomparison and Evaluation of Aerosol Microphysical Properties among AeroCom Global Models of a Range of Complexity.” Atmospheric Chemistry and Physics: 14, 4679–4713. DOI:10.5194/acp-14-4679-2014.
