Geoscience Reference
In-Depth Information
Fig. 11. As in Fig. 8 but with a volume scan of 20 PPIs.
Figure 12 is the same as Fig. 11 but for EL17 rather than EL20. The downdraft region
associated with heavy precipitation to the east of the strong updraft is extended further
downward in EL17. The maximum retrieved downdraft speed exceeds 9 m s
-1
, a 3 m s
-1
overestimate of the original model output (Fig. 5). These results indicate that even with the
use of the variational approach, incomplete upper boundary conditions may lead to
incorrect estimates of vertical velocity, especially near the storm top.
Fig. 12. As in Fig. 8 but with a volume scan of 17 PPIs.
