The Vaisala-Brunt frequencies of atmospheric waves lie sufficiently near He-filled balloon buoyancy oscillation frequencies to cause a near-resonance condition, especially in the 11.6-24.4 km altitude range. This excitation will hold for such balloons irrespective of size and payload variations due to the independence of balloon buoyant frequencies from size. Vertical perturbations of approximately 5-min period should accordingly be anticipated by balloon flight-control system designers.
Oscillation of high-altitude balloons
Journal of Aircraft ; 28
1991-09-01
Sonstige
Keine Angabe
Englisch
Oscillation of high-altitude balloons
AIAA | 1991
|High-Altitude Balloons. Annotated Bibliography
NTIS | 1964
Polarimetry from high-altitude balloons.
NTRS | 1967
|Earth Photography from High-Altitude Balloons
NTIS | 1971
|