A Raman Lidar with a Deep Ultraviolet Laser for Continuous Water Vapor Profiling in the Atmospheric Boundary Layer
1 Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
2 EKO Instruments Co., Ltd., Shibuya-ku, Tokyo 151-0072, Japan
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Published online: 7 July 2020
A Raman lidar with a deep ultraviolet laser was constructed to continuously monitor water vapor distributions in the atmospheric boundary layer for twenty-four hours. We employ a laser at a wavelength of 266 nm and detects the light separated into an elastic backscatter signal and vibrational Raman signals of oxygen, nitrogen, and water vapor. The lidar was encased in a temperature-controlled and vibration-isolated compact container, resistant to a variety of environmental conditions. Water vapor profile observations were made for twelve months from November 24, 2017, to November 29, 2018. These observations were compared with collocated radiosonde measurements for daytime and nighttime conditions.
© The Authors, published by EDP Sciences, 2020
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