Abstract
An ultraviolet rotational Raman lidar system has been developed for measuring the vertical temperature profile of the planetary boundary layer in the lower troposphere. Daytime observation was realized using the ultraviolet pulsed laser at a 355 nm wavelength with a 5 W average power, and reducing the field of view of the receiving optics. The system has relatively compact and eye safety features. A high-resolution grating is employed with narrow band interference filters to reject intense elastic Mie scattering noise mixed in the molecular Raman scattering signals. Calibration measurement was carried out with a radiosonde and the results showed good agreements. A statistical temperature error less than 1 K was obtained up to heights of 2.3 km for nighttime and 1.8 km for daytime measurements with a 4 min observation time.
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