Research Article

Ionospheric Anomalies Related to the (M = 7.3), August 27, 2012, Puerto Earthquake, (M = 6.8), August 30, 2012 Jan Mayen Island Earthquake, and (M = 7.6), August 31, 2012, Philippines Earthquake: Two-Dimensional Principal Component Analysis

Figure 2

(a) The figures show the GIMs during the time period from 04:35 to 04:45 on 27August 2012 (UT). (b) The figures give a color-coded scale of the magnitudes of principal eigenvalues of 2DPCA corresponding to Figure 2(a). (c) The figures give a color-coded scale of the magnitudes of principal eigenvalues of PCA corresponding to Figure 2(a).
271513.fig.002a
(a)
271513.fig.002b
(b)
271513.fig.002c
(c)