Figure 6From: Fast and ultrafast Kelvin wave modulations of the equatorial evening F region vertical drift and spread F development Decomposed waves at 3-, 4-, 5-, and 6-day periods. (A) The decomposed waves at 3-day period (left) and 4-day period (right) plotted for Tirunelveli and Cariri during interval-1 (defined in the text). (B) The decomposed waves at 5-day period (left) and 6-day period (right) plotted for Tirunelveli and Cariri during interval-2 (defined in the text).Back to article page