Highly validated atmospheric water vapor vertical profiles using Raman lidar technique

被引：0

作者：

Al-Basheer, Watheq ^{[1
]}

Strawbridge, Kevin B. ^{[1
]}

机构：

[1] Environm Canada, Ctr Atmospher Res Expt, Sci & Technol Branch, Egbert, ON L0L 1N0, Canada

来源：

LASER COMMUNICATION AND PROPAGATION THROUGH THE ATMOSPHERE AND OCEANS | 2012年 / 8517卷

关键词：

Inelastic Backscattering; Raman Lidar; Water Vapor Mixing Ratio; Troposphere; RADIATION; AEROSOL; CLOUDS;

D O I：

10.1117/12.930614

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 degrees 14'02" North, 79 degrees 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.

引用

页数：6

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