A study on correlation of wind velocity and wind direction between two points using observational windy data

Abstract

For further optimization of the method of operation control under strong winds in the railway field, authors have been studying models which can handily estimate wind direction and wind velocity at an arbitrary point in an operation control section by using data of wind directions and wind velocities observed with one anemometer. The cross-correlation between wind velocities of two points and wind directions of two points were examined by using strong wind data.As a result, the decrease rate of the cross-correlation function of the wind direction with the increase of lag was larger than that of the wind velocity regardless of the wind direction.