Highly validated atmospheric water vapor vertical profiles using Raman lidar technique

Watheq Al-Basheer; Kevin B. Strawbridge

doi:10.1117/12.930614

24 October 2012 Highly validated atmospheric water vapor vertical profiles using Raman lidar technique

Proceedings Volume 8517, Laser Communication and Propagation through the Atmosphere and Oceans; 85170U (2012) https://doi.org/10.1117/12.930614
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

Generating highly validated and well-resolved vertical profiles of water vapor is crucially important to understand short and long term global climate changes. Latest results of a newly developed water vapor Raman lidar instrument at the Environment Canada’s Centre for Atmospheric Research Experiments (CARE) (44°14'02" North, 79°45'40" West) will be presented. The CARE Raman lidar setup utilizes third harmonic (355 nm) output of employed YAG laser to probe aerosols, water vapor, and nitrogen profiles. By manipulating inelastic backscattering lidar signals of the Raman nitrogen channel (386.7 nm) and Raman water vapor channel (407.5 nm), vertical profiles of water vapor mixing ratio (WVMR) from the near ground up to 9 km geometrical altitude are routinely deduced, calibrated, validated, and compared against WVMR profiles obtained from simultaneously performed and collocated radiosonde launches. Seasonal effects and variations of WVMR will be also discussed and related to Raman lidar setup efficiency.

Citation Download Citation

Watheq Al-Basheer and Kevin B. Strawbridge "Highly validated atmospheric water vapor vertical profiles using Raman lidar technique", Proc. SPIE 8517, Laser Communication and Propagation through the Atmosphere and Oceans, 85170U (24 October 2012); https://doi.org/10.1117/12.930614

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