A lidar with high spectral resolution can be used to measure atmospheric temperature profiles according to conservative performance calculations. The technique analyzed relies on determining the temperature-dependent Rayleigh-scattering linewidth with two stabilized Michelson interferometers in parallel. From ratios of four integrated flux values from two photomultipliers, one can determine temperature profiles within a 1 K standard deviation to 5 km with 50-m height resolution in 1¼ min using a laser of 1-W average power and a telescope of 30-cm diam.
R. L. Schwiesow and L. Lading, "Temperature profiling by Rayleigh-scattering lidar," Appl. Opt. 20, 1972-1979 (1981)