Figure 1From: Airglow-imaging observation of plasma bubble disappearance at geomagnetically conjugate pointsAll-sky airglow images at a wavelength of 630 nm obtained at Darwin (a-f) and Sata (g-l) on 8 August 2002. North is toward the top, and east is to the right. The images are deviations from 1-h running averages to show the bubble structures and their disappearance more clearly. The local time is 9 h ahead of UT.Back to article page