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Between October 15 and November 8, 1988, the GSFC mobile stratospheric ozone lidar was operated at Table Mountain Observatory to intercompare with the permanent JPL ozone lidar. These lidars both use the technique of differential absorption to measure ozone. XeCl excimer lasers are used to generate the on-line 307.9 nm light absorbed by ozone. However, the GSFC lidar generates the off-line 354.7 nm light using a Nd/YAG laser operating at 16.5 Hz, while the JPL lidar uses stimulated Raman scattering in hydrogen to generate off-line 353 nm light. Backscattered on and off-line are detected by the lidars using telescopes. The ratio of the absorbed on-line signal to the scattered off-line signal is proportional to the number density of ozone in the atmosphere.
© 1990 Optical Society of America
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