MSISE-90 (Mass Spectrometer - Incoherent Scatter) Model of the Upper Atmosphere
This is an empirical model of the temperature and composition of the atmosphere at heights between 0 and 700km. It
is based on mass spectrometer data from various satellites and on incoherent scatter radar data from several
sites.
Full details are given in the papers by A E Hedin which were published in the Journal of Geophysical
Research, Vol 92 (A5), pages 4649-4662 (May 1987) and Vol 96 (A2), pages
1159 -1172 (February 1991).