Tahiti case
Tahiti is close to Atuona though at somewhat larger |dip
angle| ~ 30 deg. Figure 5 is like Figure 4, but
for the Tahiti case. Because Tahiti has operated during almost the
entirety of the study epoch, it has more strokes both in the parent
distribution (1.94X109) and the Tahiti-detected
distribution (1.93X108) compared to Atuona. The Tahiti
detections are almost entirely confined to logarithmic reference
transmission (to Tahiti) > -2.5 (Figure 5g), consistent
with being a less sensitive station than Atuona. Tahiti almost totally
fails to detect lightning in the Americas in night conditions (Figure
5e), while Tahiti is highly successful with the Australasia sector.
Again, as commented earlier in the case of Atuona, all the quantitative
evidence is condensed into Figure 5(g); the geographical map
presentations are qualitative by comparison. And again, the sharp
cut-off of the red curve in Figure 5(g) shows that the model has
predictive value for Tahiti detection/non-detection.