Figure 5
Wavelet coherences WTC (1979 to 2015) between (a) radon and water temperature, (b) radon and discharge rate, (c) radon and galactic cosmic ray, (d) radon and atmosphere pressure, (e) radon and rainfall, (f) water temperature and discharge, (g) discharge and GCR, and (h) water temperature and GCR. The thick black contour indicates the 95% confidence level and the lighter shade indicates those regions inside the cone of influence (COI). Arrows indicate the relative phase relationship (with in-phase pointing right, anti-phase pointing left, and phase-leading by 90° pointing straight down). Global coherence (GC) is shown for each sub-plot. Peaks of global coherence are listed in Table 1.
