The National Center for Atmospheric Research thermosphere-ionosphere g
eneral circulation model has performed a series of self-consistent cal
culations of the thermosphere/ionosphere structure for a variety of ge
ophysical conditions, The model simulates March, June, and December pe
riods for solar cycle minimum and maximum for three levels of geomagne
tic activity representing quiet, moderate, and disturbed conditions. T
he calculations include predictions of N-2, O-2, O, N(S-4), N(D-2), NO
, N-2(+), O-2(+), O+, NO+, and N+, along with the ion, electron, and n
eutral temperatures and the three components of the neutral winds. The
model simulations are available from the authors or through the Coupl
ing, Energetics, and Dynamics of Atmospheric Regions database at NCAR.