Tornadoes - Severe Convective Storms and Tornadoes: Observations and Dynamics - page 362

(a)
(b)
Figure 6.41. The four characteristic regions of a tornado and their properties (vertical cross
sections): (a) idealized model; contours of constant angular momentum (solid orange lines); (b)
LES; lines of constant angular momentum (solid black lines) (from Lewellen et al., 2000).