Environmental Engineering Reference
In-Depth Information
6. Questions and Answers
S. Galmarini: Which are your research priorities in AQ modeling and can you
comment on the role of subgrid scale processes (not necessarily emissions) in
regional AQ modeling?
Answer: More detailed measurements are needed to understand chemistry and
more specifically aerosol processes. I would give first priority to detailed aerosol
measurements. Then for modeling, long-term regional climate-air quality coupled
simulations must be carried out requiring model development, and computer
power for regional simulations. Subgrid scale processes are very important
because they are the missing link between regional air quality and exposure.
Several methods are currently being developed to account for subgrid scale
variability.
Douw Steyn: Can you comment on the ability of existing climate models to capture
frequencies of occurrence of synoptic conditions conducive of episodes with
degraded air quality?
Answer: This is a key question. Climate models do not presently have the resolution
to represent air flows conducive to episodes. It is not clear whether they are
representing, even for present climate, the correct frequency of such weather
regimes. Even so this does not prevent predicted climate to have the right
frequencies. This question should be investigated in the future.
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