Boltek Lightning/2000 - Manual (Page 236)

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with a few +CG out in front. But there would also be an
additional number of +CG strokes trailing the storm’s
movement (a larger number than from the anvil). This
condition is shown in figure 11.
Published research discloses that a few measurements of
charge distributions show apparent inverted structures
(inverted dipole) in some severe storms. In this condition
the positions of the main positive and negative charges are
reversed, with the main positive charge below the main
negative charge. In this case the positions of the +CG
strokes are positioned near the convective core (and below
the stratiform area, dashed box, if this positive stroke
dominated (PSD) cell were part of a larger complex, a rare
occurrence) while the strokes from the anvil will show up as –
CG. The pattern this would produce is shown in figure 12.
Depending on the range of the storm cell, the separation of
the stroke plots may not be as clear as in figures 10 to 12.
Also these cases consider the best possible orientation of the
storm’s movement relative to the detector. If the storm were
moving directly toward or away from the detector the
positions of the +CG and –CG strokes would most likely be
mixed so that it would not resemble what is shown. This is
caused by the fact that the angular resolution of a single
station detector is much better than the range resolution.