Wingrove parameter - A new turbulence metric
摘要
This article discusses the development of a real-time turbulence metric called the Wingrove parameter. This metric is proportional to the turbulent kinetic energy of the vertical wind. It is computed from digital flight data recorder information after the application of a numerical filter to eliminate gust scales that do not contribute to aircraft turbulence. Preliminary results from this study show that the Wingrove parameter is able to eliminate long nonturbulent wave motions and to distinguish true atmospheric turbulence from maneuvering. There are some averaging problems because of the intermittent nature of turbulence events, and some simple procedures for eliminating them are presented. From these preliminary results it is concluded that the Wingrove parameter provides a substantial foundation for the development of a standardized, quantitative, real-tune turbulence metric.