Section headings and selected papers: Vertical Profiles. Progress report on IRI status, D Bilitza. An analytical model of the electron density profile in the ionosphere, G Di Giovanni & S M Radic;lla. Temporal variation of median foEs, G A Moraitis. Empirical modeling of ion composition in the middle and topside ionosphere, D Bilitza. Worldwide and Regional Mapping. Application of the expansion into empirical orthogonal functions to ionospheric characteristics, W Singer & J Taubenh;im. Discussion of a new method for mapping ionospheric characteristics, L Bossy & K Rawer. ;eomagnetic control of the ionospheric E-region at three different latitudes in the European-African sector, K K Barbatsi. Outlook. Annex - Tables. Author Index.
