Cross Spectral Analysis of CODAR-SeaSonde Echoes from Sea Surface and Ionosphere at Taiwan

Figure 6

Comparison of the histograms of the coherences of the ionospheric echoes (a, b) with those of sea echoes (c, d), in which only the results from the receiving channels 1 and 2 are displayed. The dashed lines in every panels mark the coherence values of 0.6 (a, c) and 0.7 (b, d) on respective histograms for comparison.

(a)

(b)

(c)

(d)