We describe a high-performance Raman lidar system with combined day and night capability for tropospheric water-vapor profile measurements. The system incorporates high-performance UV interference filters and a narrow-band, dual-field-of-view receiver for rejection of background sunlight. Daytime performance has been demonstrated up to 5 km with 150-m vertical and 5-min temporal averaging. The nighttime performance is significantly better with measurements routinely extending from 10 to 12 km with 75-m range resolution and a 5-min temporal average. We describe design issues for daytime operation and a novel daytime calibration technique.
© 1999 Optical Society of America
Scott E. Bisson, John E. M. Goldsmith, and Mark G. Mitchell, "Narrow-Band, Narrow-Field-of-View Raman Lidar with Combined Day and Night Capability for Tropospheric Water-Vapor Profile Measurements," Appl. Opt. 38, 1841-1849 (1999)