Joint Urban 2003
Atmospheric Dispersion Study in Oklahoma City

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  • STUDY OVERVIEW

      This Atmospheric Study was designed to provide useful information that will be helpful in dealing with today's concerns of homeland security. Currently we have models that allow emergency management, law enforcement and other personnel to train for and respond to potential attacks in urban areas. The study results will help us enhance our knowledge of how we respond in the future. During the July 2003 study, a safe approach was designed and implemented to achieve several important and beneficial outcomes.

    The two figures show a typical sampler with and without the cover.  After sample collection, the bags are taken to a laboratory for chemical analysis of the tracers. Our Approach:

    • Conduct preliminary studies.
    • Obtain site permissions and install equipment.
    • Site more than 200 portable wind sensors.
    • Site more than 200 portable tracer samplers (i.e. sampler is pictured to the right).
    • Release sulfur hexafluoride tracer gas at specific locations.
    • Conduct tracer experiments and building infiltration experiments.
    Safe Approach:
    • Only safe, inert tracer gases released to track air movement.
    • Used safely internationally by scientists and industry for decades.
    Benefits:
    • Important study to help protect homeland against chemical and biological threat.
    • Strong collaboration with international partners.
    • Opportunity for Oklahoma University to enhance its excellent meteorology program through research and student participation.
    • Data can be used to improve air quality models.

    Fact Sheets:
    (These files are in adobe acrobat (.pdf) format.  If you do not have adobe acrobat reader on your system here is the web site to download a free version of acrobat reader.)

    These fact sheets were prepared and distributed to audiences leading up to the July 2003 study.


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    Department of Homeland Security Defense Threat Reduction Agency

    Webmaster: Jennifer Kirk
    Date Last Revised: 06/13/03

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