@inproceedings{8687d2e7d0a44714b2a56daf3144782f,
title = "Rayleigh-backscattering Doppler broadening correction for differential absorption lidar",
abstract = "The spectral broadening by Rayleigh backscattering can cause large changes in water vapor echo signals, causing errors when the water vapor concentration is inversed by differential absorption lidar (DIAL). A correction algorithm is proposed to revise the errors due to the effect of laser spectral broadening. The relative errors of water vapor are calculated in cases of different aerosol distribution and temperature changes before and after correction. The results show that measurement errors due to the Doppler broadening are more than 5% before correction and a 2% measurement error after corrected for the case of a smooth, background aerosol distribution. However, due to the high aerosol gradients and strong temperature inversion, errors can be up to 40% and 10% with no corrections for this effect, respectively. The relative errors can reduce to less than 2% after correction. Hence, the correction algorithm for Rayleigh Doppler broadening can improve detection accuracy in H2O DIAL measurements especially when it is applied to high aerosol concentration or strong temperature inversion.",
keywords = "Atmospheric optics, Correction algorithm, Doppler broadening, Range-resolved DIAL, Rayleigh backscattering, Water vapor remote sensing",
author = "Lanlan Fan and Yinchao Zhang and Chen, {Si Ying} and Pan Guo and He Chen",
note = "Publisher Copyright: {\textcopyright} 2015 SPIE.; International Conference on Frontiers in International Conference on Frontiers in Terahertz Technology and Applications, and the International Symposium on Surface Topography and Optical Microscopy ; Conference date: 23-07-2015 Through 25-07-2015",
year = "2015",
doi = "10.1117/12.2214707",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Daren Lv and Lijun Wang and Libin Xiang and Petelin, {Michael I.} and Guangjin Zhang and Songlin Zhuang and Shenggang Liu",
booktitle = "Selected Papers of the Photoelectronic Technology Committee Conferences held June-July 2015",
address = "United States",
}