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El
Paso/Ciudad Juarez Air Quality Program
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| HOTMAC/RAPTAD
simulation of nighttime plume dispersal in the Paso del Norte
region. Source located near the Rio Grande river north of the
Sierra Juarez and south of the Franklin Mtns. |
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The
El Paso/Ciudad Juarez Project has the goal of understanding the
circulation patterns in the Paso del Norte Region in the context
of studying ozone production and transport. The LANL team consists
of experimentalists and modelers from both D-4 and EES-8
(Atmospheric Sciences and Climate Group). The EES-8 lidar team
has measured 3-d aerosol distributions in the region and are
currently working on a novel method for obtaining high resolution
3-D wind fields.
Meteorological
modelers from both groups are using the mesoscale models HOTMAC and RAMS
to simulate the circulation patterns that develop in the complex
terrain surrounding the El Paso/Ciudad Juarez communities. An
intensive field campaign was conducted in the summer of 1996
in conjunction with the US
Environmental Protection Agency Region VI, Sonoma
Technology, the Texas
Natural Resource Conservation Commission and others.
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Reports, Talks,
& Movies:
 Meteorological simulations
of boundary layer structure during the 1996 Paso del Norte Ozone
Study, Brown, Muller, Wang, and Costigan, accepted Sci. of
Total Env., LA-UR-00-1262 (2001).
Download x.x Mb pdf
The effect of urban canopy
parameterizations on mesoscale meteorological model simulations
in the Paso del Norte area, Brown and Williams, 90th Annual
AWMA Meeting, Toronto, LA-UR-97-287 (1997)
Download
0.7 Mb pdf
Check out the Summary of Measurements
Obtained During the 1996 Paso del Norte Ozone Study at the
USEPA
Region VI web site.
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Meteorological simulations
of ozone episode case days during the 1996 Paso del Norte Ozone
Study, Brown, Costigan, Muller, and Wang, 91st Annual AWMA
Meeting, St. Louis, MO, LA-UR-99-788 (1999)
Download
1.3 Mb pdf
See a gif
movie of a HOTMAC/RAPTAD simulated plume release in the El
Paso/Ciudad Juarez Region. The movie shows neutrally-buoyant
particles being transported by the mean and turbulent wind fields
for 3 days of a 30 day simulation (Sept. 10-12, 1994).
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