Fig. 1

Vertical drifts estimated from the Jicamarca incoherent scatter radar measurements for different seasons (columns) and solar flux conditions (rows). These vertical drifts are used as inputs to the analytic model of the zonal drifts
Vertical drifts estimated from the Jicamarca incoherent scatter radar measurements for different seasons (columns) and solar flux conditions (rows). These vertical drifts are used as inputs to the analytic model of the zonal drifts