A Comparison of Aircraft and Jimsphere Wind Measurements

D. S. Treddenick National Aeronautical Establishment, National Research Council of Canada, Ottawa

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Abstract

Upper level wind profiles obtained from a Doppler equipped aircraft and from radar tracking of a Jim-sphere balloon are compared. Simultaneous measurements were made by them methods on 19 and 20 February 1970. The measurements agree closely in terms of rms variation and power spectral density. The effect of small horizontal separation of the measurements (∼10 n mi) was found to be insignificant.

Abstract

Upper level wind profiles obtained from a Doppler equipped aircraft and from radar tracking of a Jim-sphere balloon are compared. Simultaneous measurements were made by them methods on 19 and 20 February 1970. The measurements agree closely in terms of rms variation and power spectral density. The effect of small horizontal separation of the measurements (∼10 n mi) was found to be insignificant.

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