✦ LIBER ✦

Intensities and spectra of vertical wind fluctuations at heights between 100 and 500 ft in neutral and unstable conditions

✍ Scribed by N. Thompson

Publisher: John Wiley and Sons
Year: 1962
Tongue: English
Weight: 324 KB
Volume: 88
Category: Article
ISSN: 0035-9009
DOI: 10.1002/qj.49708837712

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✦ Synopsis

Abstract

Records of vertical gustiness have been obtained using a sensitive vane attached to the cable of a captive balloon. Electrical filtering of the output signal from the vane reduced the labour of subsequent computation. Intensities of turbulence were found to decrease with increasing wind speed. Length scales generally showed no regular trend with height below 400 ft, because of (a) the dependence of scale on stability, and (b) the heterogeneity of the present data as regards stability. Most spectra exhibited two major peaks.

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