Fig. 4
Temporal variation in Doppler velocity at heights of 1.11, 1.12, 1.13 and 1.14 R⊙ for all polar angles (left column) along with its temporal profile measured at angles of 94°, 86°, 85° and 88° clockwise from solar north (right column). The solid blue lines in the right column indicate a fit to the data using the damped cosine model described in Eq. (1).
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