  The InSight mission, featuring continuous high-frequency high-sensitivity
pressure measurements, is in ideal position to study the active atmospheric
turbulence of Mars. Data acquired during 1.25 Martian year allows us to study
the seasonal evolution of turbulence and its diurnal cycle. We investigate
vortices (abrupt pressure drops), local turbulence (frequency range 0.01-2 Hz)
and non-local turbulence often caused by convection cells and plumes (frequency
range 0.002-0.01 Hz). Contrary to non-local turbulence, local turbulence is
strongly sensitive at all local times and seasons to the ambient wind. We
report many remarkable events with the arrival of northern autumn at the
InSight landing site: a spectacular burst of daytime vortices, the appearance
of nighttime vortices, and the development of nighttime local turbulence as
intense as its daytime counterpart. Nighttime turbulence at this dusty season
appears as a result of the combination of a stronger low-level jet, producing
shear-driven turbulence, and a weaker stability.
