HR: 0800h
AN: A51B-0355 [Abstracts]
TI: The relationship among air quality, mixing heights, and winds observed during the entire TexAQS-II field study
AU: * MacDonald, C
EM: clint@sonomatech.com
AF: Sonoma Technology, Inc., 1360 Redwood Way, Suite C, Petaluma, CA 94954, United
States
AU: Knoderer, C A
EM: charley@sonomatech.com
AF: Sonoma Technology, Inc., 1360 Redwood Way, Suite C, Petaluma, CA 94954, United
States
AU: Zahn, P
EM: pzahn@sonomatech.com
AF: Sonoma Technology, Inc., 1360 Redwood Way, Suite C, Petaluma, CA 94954, United
States
AB:
The Texas Air Quality Study II (TexAQS-II) was designed to provide support for State Implementation Plan (SIP)
revisions. The SIP revisions outline strategies for improving air quality to meet the new federal 8-hr ozone
standard and regional haze requirements. As part of TexAQS-II, a field study was conducted to collect air quality
and meteorological data throughout eastern Texas from May 1, 2005, through October 15, 2006. As part of the
field study, various organizations made upper-air meteorological measurements at several locations. These
measurements were collected by twelve 915-MHz radar wind profilers (RWPs), three 404 MHz RWPs, nine Radio
Acoustic Sounding Systems (RASS), two sodars, and one lidar. These instruments provide vertically, horizontally,
and temporally resolved wind, virtual temperature (Tv), and mixing height information. This presentation will
address the three-dimensional and temporal characteristics of these parameters throughout the study domain
for the entire study period and how these characteristic vary by season, month, and synoptic weather pattern. The
presentation will also address how these characteristics influence regional and local air quality conditions
throughout the study domain, including the relationship among various transport statistics, mixing height
characteristics (e.g., time of peak mixing, morning mixing height growth rate, peak mixing height, average
morning mixing height, etc.) and air quality. In addition, case studies will illustrate the finer-scale details of the
relationship among the evolution of mixing heights, diurnal variability of winds, and air quality.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0325 Evolution of the atmosphere (1610, 8125)
DE: 3329 Mesoscale meteorology
DE: 3360 Remote sensing
DE: 3364 Synoptic-scale meteorology
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting