Using the method of vertical load increment,combined with statistical analysis of aircraft turbulence data and reanalysis data,the spatiotemporal distribution characteristics of aircraft turbulence on four high-altitude routes in 2014 was investigated.The results indicate that the turbulence frequency on the high-altitude routes exceeded 55%,reaching as high as 78.8%on the Lhasa route.Turbulence encounters are more frequent during the departure and arrival phases compared to the cruising phase.The occurrence of aircraft turbulence shows a seasonal variation,with lower frequencies in the summer and fall seasons and higher frequencies in the winter and spring seasons.During the cruising phase,aircraft turbulence primarily occurs in the altitude range of 6 900～8 700 meters.In contrast,during the departure and arrival phases,the frequency of turbulence encounters increased as the altitude decreased.The spatial distribution of aircraft turbulence exhibits an elongated shape,with high-frequency turbulence areas observes in the 91°E～93°E and 97°E～99°E regions of the ZULS,as well as the 31°N～33°N region of ZUJZ.
关键词
垂直过载增量/飞机颠簸/时空分布
Key words
vertical overoad/aircraft turbulence/spatiotemporal distribution
维普
万方数据