Preliminary report on spectral characteristics of bora on the island of Rab

Abstract

Some results of measurements of the bora wind in the island of Rab during the experiment searching for the influence of the wind on sea waves and currents are shortly presented. The used piezoelectric wind sensor enabled to resolve velocity in the 1 s intervals and so the spectra of the bora were computed also to the very hig frequencies. These spectra show the most important peaks to be at periods greater than several minutes. This result is in an agreement with our earlier findings of periods in bora greater than approx. 5 minutes in location in Vipavska dolina (Rakovec and Petkovšek, 1983).