Can Lidar Detect CAT? Part 2.
In this letter more details of this method of detecting atmospheric clear air turbulence (CAT) by optical laser radar (lidar) are presented and a second method, quite distinct from the first, is presented.
Abstract
In an earlier communication a brief outline was given of a method of detecting atmospheric clear air turbulence (CAT) by optical laser radar (lidar). In this letter more details of this method are presented. In addition, a second method, quite distinct from the first, is also presented. A simple but direct calculation on the ratio of scattering of electromagnetic radiation from atmospheric thermally caused optical index inhomogeneities (Rayleigh scatter component) to that from the refractive index inhomogeneities arising from atmospheric turbulence, was presented by Munich. In his conclusion, ho seemingly foreclosed on the use of optical radar in any simple way, as a means of detecting CAT. Indeed, ex-