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Using observational data from Korean Air Lines (KAL) Boeing (B) 737‐800, B777‐200 and B777‐300 flights from January to December 2012, the derived equivalent vertical gust velocity (DEVG) was calculated as a turbulence indicator. Based on 1 min flight segments using the calculated DEVG, the highest frequency of moderate‐or‐greater (MOG) turbulence occurred in the Northern Hemisphere winter, whereas...
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