This paper provides the impact of a meteorological forecast model on the trajectory of aircraft for future Air Traffic Management based on trajectory operation. The ground speed of aircraft was calculated under the influences of seasonal wind conditions and meteorological forecast accuracy during cruise flights on the waypoints in the course towards Tokyo International Airport. Aspects of wind conditions of cruise altitude vary from season to season depending on the position of the waypoint, and whether jet stream exists or not. Aircraft ground speed tends to vary based on the direction of aircraft movement in addition to wind conditions. The predictions of ground speed were calculated using meteorological forecast data of 15 h prior or later. The results show that prediction accuracy of ground speed improves if recent prediction data is used. And ground speed prediction accuracy becomes lower and high RMS values overlap when and where wind speed widely varies.
Basic Analysis of Winds Aloft Forecast Used for En-Route Trajectory Prediction
2014
17 Seiten
Conference paper
English
Basic Analysis of Winds Aloft Forecast Used for En-Route Trajectory Prediction
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