Small-scale temperature fluctuations seen by the VeRa Radio Science Experiment on Venus Express

► Vertical small scale temperature perturbations in the Venus atmosphere are studied. ► Gravity wave activity is significantly enhanced above the tropopause. ► The low latitude range displays the lowest wave amplitudes. ► The greatest gravity wave activity is found in the high northern latitudes west of Ishtar Terra. ► The wave activity in the equatorial region has maxima in the early afternoon.