한반도 및 동아시아 지역에서 조종사 보고 자료로 관측된 항공난류의 통계적 분석
A Statistical Analysis of Aviation Turbulence Observed in Pilot Report (PIREP) over East Asia Including South Korea
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초록
The statistical analysis of aviation turbulence occurred over South Korea and EastAsia regions is performed, using pilot reports (PIREPs) during December 2002~November2012 that were provided by the Korea Aviation Meteorological Agency (KAMA) and theNational Center for Atmospheric Research (NCAR). In South Korea, the light (LGT)- andmoderate or greater (MOG)-level turbulence events occurred most frequently in spring andwinter due to strong vertical wind shear below or above jet stream in these seasons. Spatially,the LGT- and MOG-level events occurred mainly along domestic flight routes. The higheroccurrences of the LGT- and MOG-level convectively induced turbulence (CIT) events showin spring and summer when convective systems frequently affect the Korean peninsula. Theresults are generally similar to a previous study on the aviation turbulence over South Koreaduring 2003~2008, except that MOG-level CIT events occurred more in February, June, andOctober. Over East Asia region, the LGT- and MOG-level events appeared mostly in summerand spring, respectively, and the highest occurrence is over the southeast region of Japan andKamchatka peninsula near Russia.
Abstract
The statistical analysis of aviation turbulence occurred over South Korea and EastAsia regions is performed, using pilot reports (PIREPs) during December 2002~November2012 that were provided by the Korea Aviation Meteorological Agency (KAMA) and theNational Center for Atmospheric Research (NCAR). In South Korea, the light (LGT)- andmoderate or greater (MOG)-level turbulence events occurred most frequently in spring andwinter due to strong vertical wind shear below or above jet stream in these seasons. Spatially,the LGT- and MOG-level events occurred mainly along domestic flight routes. The higheroccurrences of the LGT- and MOG-level convectively induced turbulence (CIT) events showin spring and summer when convective systems frequently affect the Korean peninsula. Theresults are generally similar to a previous study on the aviation turbulence over South Koreaduring 2003~2008, except that MOG-level CIT events occurred more in February, June, andOctober. Over East Asia region, the LGT- and MOG-level events appeared mostly in summer and spring, respectively, and the highest occurrence is over the southeast region of Japan and Kamchatka peninsula near Russia.
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