Roy Gilles, Roy Nathalie
Defence Research Development Canada Valcartier, 2459 Pie XI Boulevard North, Québec, Canada.
Appl Opt. 2008 Mar 20;47(9):1336-49. doi: 10.1364/ao.47.001336.
A multiple-field-of-view (MFOV) lidar is used to characterize size and optical depth of low concentration of bioaerosol clouds. The concept relies on the measurement of the forward scattered light by using the background aerosols at various distances at the back of a subvisible cloud. It also relies on the subtraction of the background aerosol forward scattering contribution and on the partial attenuation of the first-order backscattering. The validity of the concept developed to retrieve the effective diameter and the optical depth of low concentration bioaerosol clouds with good precision is demonstrated using simulation results and experimental MFOV lidar measurements. Calculations are also done to show that the method presented can be extended to small optical depth cloud retrieval.
多视场（MFOV）激光雷达用于表征低浓度生物气溶胶云的大小和光学深度。该概念依赖于通过使用亚可见云后方不同距离处的背景气溶胶来测量前向散射光。它还依赖于背景气溶胶前向散射贡献的减法以及一阶后向散射的部分衰减。利用模拟结果和实验性MFOV激光雷达测量结果，证明了所开发的用于高精度反演低浓度生物气溶胶云有效直径和光学深度的概念的有效性。还进行了计算以表明所提出的方法可以扩展到小光学深度云的反演。
