Table 2.
Dust Mobilization Observations
| Flight | 1 | 2 | 3 | 4 | 5 | 13 |
|---|---|---|---|---|---|---|
| Takeoff | ||||||
| Plume radius (m), t/o+2s | 6.1 | 6.1 | 5.4 | >7.4 | n/a | >4.6 |
| Plume height t/o+2s | 2.1 | 2.1 | 2.1 | 2.4 | n/a | 1.8 |
| Mdust (g), t/o+2s | 1.65 | 1.19 | 0.60 (L), 0.74 (R) | 0.50 | n/a | 0.4 |
| U (m/s) | 4.1 | 4.1 | 5.3 | 6.0 | n/a | 4.6 |
| Landing | ||||||
| Plume radius (m) | 4.7 | 5.7 | 4.2 | 6.3 | n/a | 3.9 |
| Plume height (m) | 2.6 | 2.5 | 3.4 | 3.2 | n/a | 0.7 |
| Mdust (g) | 1.13 | 0.81 | 0.70, 0.59 | 1.99 | 0.3 | 0.42 |
| Zlift (m) a | 2.32 ± 0.24 | 3.58 ± 0.24 | 3.47 ± 0.22 (L) 3.06 ± 0.32 (R) | 3.6 ± 0.1 | >1.4 | 2.8−0.7/+1.2 |
| u* t (m/s) a | 0.54 ± 0.03 | 0.38 ± 0.02 | 0.39 ± 0.02 (L) 0.43 ± 0.04 (R) | 0.38 ± 0.01 | <0.8 | 0.56 ± 0.14 |
| Shear stress τ (Pa) | 0.006 | 0.003 | 0.003 (L) 0.003 (R) | 0.003 | <0.013 | 0.005 |
a
Uncertainties refer only to the model parameter estimation and do not include the generally more significant factor of ∼2 from model validation.