Abstract: Deep convection in the Tunuyán Valley region (33°?34°S, 69°?70°W) on the eastern side of the highest peaks of the Andes Mountains is sometimes associated with damaging hail. Understanding the physical mechanisms responsible ...

Abstract: Vertical displacements induced by the quasi-stationary wave with wavenumber 1 (QSW1) in the Southern Hemisphere stratosphere during spring are studied. The displacement exhibits two amplitude maxima located in the upper ...

Abstract: Measurements of horizontal wind speed and direction obtained during the Pollution from Aircraft Emissions in the North Atlantic Flight Corridor experiment are used to identify some waves propagating near the tropopause ...