Using the modified von Karman spectral model and considering the inner and outer scales of turbulence, analytical expressions for the average intensity distribution, the beam spread root mean square width, and the drift variance of partially coherent light in atmospheric turbulence can be deduced. The effects of turbulent inner and outer scales on the transmission characteristics of partially coherent light on horizontal and inclined paths in atmospheric turbulence are compared and analyzed for different atmospheric turbulence intensities.