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SYMBOLS

a, a2, b constants 
\( C_{\scriptscriptstyle N}^2 \)  structure coefficient of the index of refraction 
\(C_{\scriptscriptstyle T}^2\)  temperature structure coefficient 
D    (mirror) diameter 
Dd   dome diameter 
Fr   Froude number 
h    heat transfer rate 
L    Monin-Obukhov length 
Lu   turbulence length scale 
P    pressure 
Q    dissipated power 
q    heat flux normalized by $c_p \rho$
qs   surface heat flux 
Ri   Richardson number 
T   (mean) temperature 
U    wind or air flow speed 
u*   friction velocity 
z    height 
$\beta$  ratio $K_{\scriptscriptstyle H}/K_{\scriptscriptstyle M}$
$\gamma$  zenithal angle of the direction of observation 
$\epsilon$  dissipation rate of kinetic energy 
$\epsilon_\theta$ dissipation rate of temperature 
$\kappa$  thermal diffusivity of air 
$\lambda$  light wavelength 
$\sigma_i$ root mean square of quantity i
$\theta$  long exposure angular image size on the sky (generally FWHM)
Lorenzo Zago

1998-07-05