Fig. 3From: Solar terminator effects on middle- to low-latitude Pi2 pulsationsLT and \({\Delta }T_{\text{sr}}\) dependency of the phase lag of the H component between HVD and the five test stations. Positive values indicate that the phase of test data was delayed with respect to the reference data. The color-coded dots indicate the location of the HVD station with respect to the \({\Delta }T_{\text{sr}}(\text{HVD})=0.5\); blue dots show events satisfying \({\Delta }T_{\text{sr}}({\text{HVD}})\le 0.5,\) and red dots show events satisfying \({\Delta }T_{\text{sr}}({\text{HVD}})\ge 0.5\). Red and cyan vertical lines show sunrise times at the summer solstice and the winter solstice, respectivelyBack to article page