• Aviation turbulence in the free atmosphere is a serious concern in the general aviation industry because it
frequently causes occupant injuries, flight delays, fuel losses, and damage.
• Since air transportation industry over the world is invigorated more and more, the investigation and the
forecast of the aviation turbulence become more important.
• To achieve economically efficient and operationally useful forecasting turbulence, the Graphical Turbulence
Guidance (GTG) system that is the turbulence forecasting system developed by Sharman et al. have been
continually evaluated and implemented in updated versions.
• In our group, recently, Kim and Chun developed the Korean Aviation Turbulence Guidance (KTG) system
through the methodology of the GTG system using pilot reports (PIREPs) and operational Regional Data
Assimilation and Prediction System (RDAPS) in the Korea Meteorological Administration (KMA).
And the KTG system is working operationally in KMA.