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The
air quality team works with meteorological, air chemistry, plume
dispersion, computational fluid dynamics (CFD), and emissions
models. We have been involved in a number of applied urban air
quality projects (e.g., Mexico City, El Paso/Ciudad Juarez) and
plume dispersion modeling efforts (e.g., Chilean smelters, Dallas
toxic release).
In
the Chem-Bio Transport and Fate Program, we are part of a multi-group
team linking together CFD and atmospheric transport models to
cover plume dispersion from building to urban to meso scales.
As part of this effort, a "virtual planner" is being
developed to visualize plume dispersion in a GIS-like graphical
user interface. As part of the Urban Security Project, we are
working on linking together air and water transport models in
order to follow pollutants through the complete urban system.
Other
current research efforts include developing urban canopy parameterizations
for use in mesoscale models, constructing a puff meander model
for computing concentration fluctuations, producing a real-time
tailpipe emissions model to compute effluents from individual
cars on a second-by-second basis, deriving simple urban parameterizations
for dispersion models, and modifying turbulence parameterizations
for use in CFD models applied to flow around buildings.
 See a few slides on LANL air
quality capabilities and projects. Download
0.24 Mb pdf.
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