Practical operational implementation of Teton Pass avalanche monitoring infrasound system.
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Practical operational implementation of Teton Pass avalanche monitoring infrasound system.

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    • Abstract:
      Highway snow avalanche forecasting programs typically rely on weather and field observations to make road closure and hazard

      evaluations. Recently, infrasonic avalanche monitoring technology has been developed for practical use near Teton Pass, WY to

      provide another tool for Wyoming State Highway 22 technicians in their operational forecasting and decision making. The technology

      detects low frequency sound waves produced by avalanches with automated near real-time processing provided to facilitate an alarm.

      Monitoring system operation provides information to confirm results from avalanche control work, notification of natural avalanche

      events, and verification of explosive detonations. The ability to monitor avalanche activity in poor visibility and confirm avalanche control

      work results are powerful tools for assessing highway avalanche hazard and has changed the way WYDOT operates in its mission to

      provide a safe and efficient transportation route.

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