VEGA Balloon Dynamics and Vertical Winds in the Venus Middle Cloud Region

Science  21 Mar 1986:
Vol. 231, Issue 4744, pp. 1417-1419
DOI: 10.1126/science.231.4744.1417


The VEGA balloons provided a long-term record of vertical wind fluctuations in a planetary atmosphere other than Earth's. The vertical winds were calculated from the observed displacement of the balloon relative to its equilibrium float altitude. The winds were intermittent; a large burst lasted several hours, and the peak velocity was 3 meters per second.