An Assessment of Radiosonde Launch Conditions Affected by the Surface Wind

B. S. Yurchak

Carried out is an analysis of radiosonde launch conditions affected by the horizontal surface wind. Mathematically stated is a condition of successful launch agreed qualitatively with the known practical methods and upper-air sounding techniques. This condition is defined by several main factors taking account of the clamping force impact on the balloon, adaptation of the balloon speed to the wind speed, and approaching of the instrumental box of radiosonde to the surface immediately after the launch due to the deviation of the harness string from the vertical. The results obtained provide a theoretical basis for analyzing the launch parameters in order to increase the reliability of upper-air sounding and to develop the ways of its successful use under conditions of strong winds.