Extensive analyses of satellite, radar, and synoptic data were performed, leading to the establishment of a model of the spearhead storm and downburst cells. The responses of aircraft in downburst cells were then examined in detail. This has led to the conclusion that a plane can be seriously affected by crosswind shear, head¬wind or tailwind shear, and a downburst of air current.nAt the present time, there is no way of predicting the occurrence of these phenomena both in time and space. Additional anemometers at and around the major airports and better real time assessment of wind and radar data, coupled with know¬ledge of these small but violent downbursts, will be of great help in the future for minimizing accidents of this nature.
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