A quantitative climatology of atmospheric transport in Texas is developed using previously
described Lagrangian trajectory methods (Rogers and Bowman, 2001; Bowman
and Carrie, 2002). The trajectories are computed using winds from 1979-2001 from the
National Center for Environmental Prediction (NCEP) Reanalysis Project data set.
Probability distributions are created for particle transport using trajectories from urban
areas, making six-hourly particle distributions available from four urban areas in Texas.
These probability distributions represent a quantitative understanding of regional air transport.
Time-dependent Green's functions are calculated given initial conditions such as urban
areas weighted with respect to population. The Green's functions describe how air from
urban areas is transported through the atmosphere as a function of time.
Summertime backward Lagrangian trajectories initialized at 5 Texas Commission on
Environmental Quality (TCEQ) monitoring stations are grouped according to the ozone
value recorded at the station at the initialization time of the trajectory. The directions of
the trajectories in each group are used to determine the relationship between the transport
characteristics of the circulation over Texas and regional-scale observations of pollutants.
Synoptic conditions occurring at the time of summertime ozone exceedances at the 5
TCEQ stations are investigated in order to resolve what conditions are likely to coincide
with ozone exceedances.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/1264 |
| Date | 15 November 2004 |
| Creators | Dexheimer, Darielle Nicole |
| Contributors | Bowman, Kenneth |
| Publisher | Texas A&M University |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Thesis, text |
| Format | 6386537 bytes, 746542 bytes, electronic, application/pdf, text/plain, born digital |
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