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The Influence of Atmospheric Boundary Layer Characteristics on the Vertical and Horizontal Distributions of Tropospheric Ozone in the South Central United States

EPA Grant Number: F5B61257
Title: The Influence of Atmospheric Boundary Layer Characteristics on the Vertical and Horizontal Distributions of Tropospheric Ozone in the South Central United States
Investigators: William, David J.
Institution: Oklahoma State University
EPA Project Officer: Willett, Stephanie H.
Project Period: May 15, 2005 through October 15, 2005
Project Amount: $103,639
RFA: GRO Graduate Fellowships (2005)
Research Category: Academic Fellowships

Description:

Objective:

Measurement of tropospheric ozone at ground level as well as at an elevated location within the atmospheric boundary layer (ABL) in the Tulsa, Oklahoma metropolitan area coupled with ozonesonde data for the expressed purpose of investigating the vertical extent of ozone through the ABL and interaction with the low-level jet.

Assessment of the magnitude of boundary layer ozone transport in the south central U.S.

Approach:

Vertical ozone concentrations will be measured continuously on the roof of the Bank of Oklahoma (BOk) Tower in Tulsa, Oklahoma at an elevation of 210 meters agl. An existing Oklahoma Department of Environmental Quality (ODEQ) ground level O3 monitor located approximately 3 miles to the northeast of the BOk Tower will provide control data. An anemometer co-located with the BOk Tower O3 monitor will provide site-specific wind speed and direction data, and additional meteorological data will be obtained from the NOAA vertical wind profiler in Haskell, Oklahoma, daily soundings from the NWSFO in Norman, Oklahoma, and from the Oklahoma Mesonet.

Expected Results:

Data collected during the study will provide a vertical profile of tropospheric ozone in Tulsa, Oklahoma. The relationship between ozone concentrations at an elevation of 210 meters agl and the nocturnal low-level jet will provide an indication of the magnitude of horizontal ozone transport within the south central United States.

Supplemental Keywords:

ozone, transport, atmospheric boundary layer, low-level jet, nocturnal inversion, , Air, Scientific Discipline, RFA, Chemistry, Environmental Engineering, tropospheric ozone, atmospheric boundary layer, fate and transport, ozone production, air sampling, environmental monitoring, large eddies, boundry layer processes, atmospheric monitoring

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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