TY JOUR TI Diurnal, seasonal, annual, and semi-annual variations of ionospheric parameters at different latitudes in East Asian sector during ascending phase of solar activity KW ionosphere at different latitudes KW diurnal-seasonal variations KW annual and semi-annual variations KW solar activity KW ionospheric parameters KW East Asian sector. JO Solar-Terrestrial Physics AU Wang, Z.. AU Shi, J.. AU Wang, G.. AU Wang, X.. AU Zherebtsov, G.A. AU Romanova, E.B. AU Ratovsky, K.G. AU Polekh, N.M. PY 2017 IS PB INFRA-M Academic Publishing LLC.