title: Ultraviolet high-spectral-resolution Rayleigh-Mie lidar with a dual-pass Fabry-Perot etalon for measuring atmospheric temperature profiles of the troposphere.
abstract: We report what is believed to be the first demonstration of measurement of tropospheric temperature profiles in daytime by use of a high-spectral-resolution Rayleigh-Mie lidar at an eye-safe wavelength of 355 nm. Atmospheric temperature is determined from the linewidth of the Rayleigh spectrum. Two Rayleigh signals are detected with Fabry-Perot etalon filters with a dual-pass optical layout. The Mie signal is detected with a third etalon filter for correcting the Mie component in the Rayleigh signals. The temperature statistical uncertainties are below 1 K up to a height of 3 km in nighttime and 2 km in daytime with a relatively compact system that uses laser energy of 180 mJ and a 25-cm telescope. Good agreement between lidar and radiosonde measurements is obtained.
authors.affiliation: EKO Instruments Trading Co., Ltd., 1-21-8, Hatagaya, Shibuya-ku, Tokyo 151-0072, Japan. hua@net-eko.com
authors.forename: Dengxin
authors.initials: D
authors.lastname: Hua
authors.forename: Masaru
authors.initials: M
authors.lastname: Uchida
authors.forename: Takao
authors.initials: T
authors.lastname: Kobayashi