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

Benoît Lazzarotto, Max Frioud, Gilles Larchevêque, Valentin Mitev, Philippe Quaglia, Valentin Simeonov, Anne Thompson, Hubert Van Den Bergh, Bertrand Calpini

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A new lidar instrument has been developed to measure tropospheric ozone and water vapor at low altitude. The lidar uses Raman scattering of an UV beam from atmospheric nitrogen, oxygen, and water vapor to retrieve ozone and water-vapor vertical profiles. By numerical simulation we investigate the sensitivity of the method to both atmospheric 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 afterpulse effect are studied in detail. In support of the main conclusions of this model study, time series of ozone and water vapor obtained at the Swiss Federal Institute of Technology 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.

Original languageEnglish (US)
Pages (from-to)2985-2997
Number of pages13
JournalApplied optics
Volume40
Issue number18
DOIs
StatePublished - Jun 20 2001

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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