Journal
OPTICS EXPRESS
Volume 27, Issue 4, Pages 4126-4139Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.27.004126
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Funding
- National Natural Science Foundation of China [41674149, 41127901]
- Open Research Project of Large Research Infrastructures of CAS
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We developed a mobile ozone differential absorption lidar system to simultaneously measure the vertical profiles of tropospheric and stratospheric ozone from an altitude of similar to 5 to 50 km. The system emits four laser beams at wavelength of 289 nm, 299 nm, 308 nm and 355 nm and receives their corresponding Mie/Rayleigh backscattering return signals, and two N-2 Raman return signals at 332 nm and 387 nm shifted from 308 nm and 355 nm, respectively. An assembled telescope array with four 1.25-m telescopes (effective diameter > 2 in) collects the Rayleigh and Raman backscattering signals at 308/332 and 355/387 nm. This system is currently deployed at the Yangbajing Observatory in Tibet (similar to 4300 m elevation) and has begun observations in regular campaign mode since October 2017. The lidar results agree very well with those observed by the Aura/MLS satellite. This novel ozone lidar system operates at the highest elevation of any such system in the world. The higher elevation and larger receiver aperture of this system yield a higher signal-to-noise ratio and lower statistical uncertainty. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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