  Using an observational derived model optical turbulence profile (model-OTP)
we have investigated the performance of Adaptive Optics (AO) at Siding Spring
Observatory (SSO), Australia. The simulations cover the performance for AO
techniques of single conjugate adaptive optics (SCAO), multi-conjugate adaptive
optics (MCAO) and ground-layer adaptive optics (GLAO). The simulation results
presented in this paper predict the performance of these AO techniques as
applied to the Australian National University (ANU) 2.3 m and Anglo-Australian
Telescope (AAT) 3.9 m telescopes for astronomical wavelength bands J, H and K.
The results indicate that AO performance is best for the longer wavelengths
(K-band) and in the best seeing conditions (sub 1-arcsecond). The most
promising results are found for GLAO simulations (field of view of 180
arcsecs), with the field RMS for encircled energy 50% diameter (EE50d) being
uniform and minimally affected by the free-atmosphere turbulence. The GLAO
performance is reasonably good over the wavelength bands of J, H and K. The
GLAO field mean of EE50d is between 200 mas to 800 mas, which is a noticeable
improvement compared to the nominal astronomical seeing (870 to 1700 mas).
