Pressure drops recorded by one of the pressure loggers

Pressure drops recorded by one of the pressure loggers
Pressure drops recorded by one of the pressure loggers The first event, about a minute long, indicates a large vortex with a core pressure drop of more than 1 mbar, and a second encounter either smaller or more distant than the first. The first event also saw a drop in sunlight falling on a small solar cell, suggesting the vortex was indeed dust-laden. Ralph Lorenz