強風時における風速変動の空間相関について

Abstract

Space correlation function of wind speed for the space separations up to 720 m were obtaineddirectly from the anemometer array. Longitudinal space correlation function estimated fromautocorrelation function can be a fairy good approximation judging from comparing it with thedirectly obtained longitudinal space correlation function on the array. Lateral space correlationshows rapid decrease with increasing horizontal distance up to 30-60 m and holds almost constantvalue in the longer distances which is usually near zero but higher value for longer averaging time.Space-time correlation function with vertical distance obtained on the 50 m high tower in thisstudy shows fairly good agreements with the previous works.