Ozone and water-vapor measurements by Raman lidar in the planetary boundary layer: Error sources and field measurements

A new lidar instrument was developed to measure tropospheric ozone and water vapor at low altitude. The lidar uses Raman scattering of an UV beam from atm. nitrogen, oxygen, and water vapor to retrieve ozone and water-vapor vertical profiles. By numerical simulation the authors study the sensitivity of the method to both atm. and device perturbations. The aerosol optical effect in the planetary boundary layer, ozone interference in water-vapor retrieval, statistical error, optical cross talk between Raman-shifted channels, and optical cross talk between an elastically backscattered signal in Raman-shifted signals and an after pulse effect are studied. In support of the main conclusions of this model study, time series of ozone and water vapor obtained at the Swiss Federal Institute of Technol. in Lausanne and during a field campaign in Crete are presented. They are compared with point monitor and balloon sounding measurements for daytime and nighttime conditions.

Published in:
Applied Optics, 40, 18, 2985-2997
Copyright 2003 ACS
AN 2001:512850
CAN 135:230743
Air Pollution and Industrial Hygiene
Lidar Group, Laboratory for Air Pollution,Swiss Federal Institute of Technology,Lausanne,Switz. FIELD URL:
written in English.
Lidar (differential-absorption; error sources and field measurements of ozone and water vapor in planetary boundary layer by Raman lidar); Air analysis; Error; Raman spectra; Water vapor (error sources and field measurements of ozone and water vapor in planetary boundary layer by Raman lidar); Atmosphere (planetary boundary layer; error sources and field measurements of ozone and water vapor in planetary boundary layer by Raman lidar)
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