Frequency-agile lidar for simultaneous measurement of temperature and radial wind in the mesopause region without sodium density contamination

摘要

Abstract: With early and ongoing climatological surveys established, continuing observations of the mesopause region over Fort Collins Colorado are discussed, emphasizing the modification of Colorado State University's two frequency lidar for simultaneous measurement of temperature via Doppler Broadening and radial wind via Doppler shift. The application of a frequency-agile, tandem acousto-optical modulator system for three-frequency temperature/wind measurements free of contamination from atmospheric Na density fluctuations, as well as frequency characterization of this new apparatus, and future applications are considered.!18