Espectros de potencia de la velocidad vertical del viento en las nubes convectivas tropicales sobre Cuba

DANIEL MARTÍNEZ, CARLOS A. PÉREZ, ROBERTO AROCHE, VITALI P. BELIAEV, VASILI V. VOLKOV

Abstract

For a sample of 104 penetrations in 57 convective clouds with vertical depths up to 12.5 km, fluctuations of vertical and longitudimal wind components were measured. an il-14 instrumented aircraft was used for direct in-cloud measurements. in this paper is discussed the behaviour of spectral densities and other dynamic parameters during the 1986 experiment in the camaguey metereological site. it is concluded that vertical velocity energetic spectra of developing clouds hava a main maximum for scales near to 1 km. this maximum is produced by the supply of latent heat of condesation. average spectra in logarithmic coordinates have generally slopes near to -5/3, except near to an energetic maximum. a comparison is established between vertical draft velocities and turbulence intensities measured in 1986, the conditions were less favourable for convection.

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