First principle calibration of water vapor Raman lidars

Valentin B. Simeonov

doi:10.1117/12.2275314

30 August 2017 First principle calibration of water vapor Raman lidars

Valentin B. Simeonov

Proceedings Volume 10406, Lidar Remote Sensing for Environmental Monitoring 2017; 104060D (2017) https://doi.org/10.1117/12.2275314
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

A new method for calibration of water vapor Raman lidars based on first principles is proposed. The calibration constant of a Raman lidar is derived from a set of water vapor and nitrogen Raman backscatter signals measured with the lidar receiver in a cell filled with reference humidity mixture. The reference humidity mixture is prepared gravimetrically. The water vapor mixing ratio is calculated directly as ratio of the mass of water to the mass of air or nitrogen. Since mass is a fundamental quantity, this method yields an absolute value of water vapor mixing ratio which translates to the lidar calibration constant.

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Valentin B. Simeonov "First principle calibration of water vapor Raman lidars ", Proc. SPIE 10406, Lidar Remote Sensing for Environmental Monitoring 2017, 104060D (30 August 2017); https://doi.org/10.1117/12.2275314

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