  The integration of kinetic effects in fluid models is important for global
simulations of the Earth's magnetosphere. We use a two-fluid ten moment model,
which includes the pressure tensor and has been used to study reconnection, to
study the drift kink and lower hybrid drift instabilities. Using a nonlocal
linear eigenmode analysis, we find that for the kink mode, the ten moment model
shows good agreement with kinetic calculations with the same closure model used
in reconnection simulations, while the electromagnetic and electrostatic lower
hybrid instabilities require modeling the effects of the ion resonance using a
Landau fluid closure. Comparisons with kinetic simulations and the implications
of the results for global magnetospheric simulations are discussed.
