Table 2 Settling velocities after Bagnold (19) and estimates of traveled distance based on favorable summer (strong winds and elevated dust) and winter (lower wind speeds and elevation) conditions.
Particle
size (μm)
Settling
velocity (mm s−1)
Summer: Traveled distance at
25 m s−1 winds from 7-km altitude
Winter: Traveled distance at
10 m s−1 winds from 3-km altitude
100400438 km75 km
2001000175 km30 km
3001500117 km20 km