Geoscience Reference
In-Depth Information
Fig. 18.17 Non-tornadic supercell case
. Z: Initial reflectivity field of each section (
left panels
),
temporal sequence of DZ (
center panels
), and that of DZ
DR
(
right panels
) from the case of 1 June
2008. Differences are for (
a
) 0341:36 to 0342:49, (
b
) 0342:49 to 0344:01, (
c
) 0344:01 to 0345:14,
and (
d
) 0345:14 to 0346:26 UTC. Overlaid on the difference plots are the 30-, 40-, 50, and 60-dBZ
contours of radar reflectivity Z from the most recent of the two times
storm. Why this storm did not produce a tornado even though it seemingly had
an environment favorable for tornadogenesis is an important question (listed in the
Appendix 1).
The entropic balance theory seems to provide an answer: that tornadogenesis
requires the wrap-around nonlinear process (Sect.
18.7
), which creates the transition
Search WWH ::
Custom Search