Longitude‐dependent lunar tidal modulation of the equatorial electrojet during stratospheric sudden warmings

Comparison of the diurnal variation of the lunar tidal amplitude in the Peruvian and Indian sectors during December solstice. The peak lunar tidal amplitude over the Peruvian sector is 1.31 times greater than over the Indian sector. Strong lunar tidal modulation of EEJ during SSW is seen in both the sectors after the peak day of polar vortex weakening (PVW). The time shifting semi-diurnal perturbation pattern is clearly observed in both the sectors. Day of peak PVW

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