确定卷云中平均后向散射与消光比的迭代方法。

Iterative method to determine an averaged backscatter-to-extinction ratio in cirrus clouds.

作者信息

Elouragini S, Flamant P H

出版信息

Appl Opt. 1996 Mar 20;35(9):1512-8. doi: 10.1364/AO.35.001512.

DOI:10.1364/AO.35.001512

Abstract

An iterative method to determine an average backscatter-to-extinction ratio and extinction coefficient simultaneously in cirrus clouds is proposed. The method is based on Klett's inversion, which is constrained by the total optical depth. A signal-to-noise ratio greater than 3 at the cloud top is required for an error in the backscatter-to-extinction ratio lower than 20% to result. The method has been tested with simulated lidar signals. An application to an experimental lidar signal is discussed.

摘要

提出了一种在卷云中同时确定平均后向散射与消光比和消光系数的迭代方法。该方法基于受总光学深度约束的克莱特反演法。要使后向散射与消光比的误差低于20%，则要求云顶的信噪比大于3。该方法已通过模拟激光雷达信号进行了测试。还讨论了其在实验激光雷达信号中的应用。