Fig. 5
From: The factors affecting noontime ionospheric NmF2 equinoctial asymmetry over mid-latitude regions
Noontime aeronomic parameters for the (2008–2009) period. Column atomic oxygen abundance and [O] concentration in the F2-layer maximum - a); observed NmF2, total rate of [O+] ion production qmax and linear loss coefficient βmax in the F2-layer maximum – b); vertical plasma drift W, hmF2, and exospheric temperature Tex – c). Solid lines are polynomial approximations given for better visualization. Vertical dashed lines – 27 October 2008 and 26 December 2008 (see text).
