Abstract
The method for determination of the backscattering function and extinction coefficient of the atmosphere by using a laser radar is presented. It is shown that the backscattering function can be obtained by obserations of laser echoes in two directions with the assumption of a horizontally stratified atmosphere and also that the extinction coefficient can be determined uniquely from the backscattering function in solving a differential equation derived from the laser equation. The accuracy of determination of the extinction coefficient is also discussed.
