Software for retrieval of aerosol particle size distribution from multiwavelength lidar signals

Abstract Software to retrieve profiles of aerosol particle size distribution (APSD) from multiwavelength lidar signals is presented. The approach consists in direct fit of artificial signal generated using predefined distribution to the experimental signals. Combination of two lognormal functions with a few free parameters is applied for the predefined APSD. The minimization technique allows finding lognormal function parameters which provide the best fit. The approach was tested on the experimental s... Title of program: APSD_Software Catalogue Id: AEXV_v1_0 Nature of problem Aerosol Particle Size Distribution (APSD) is a very signifficant function for evaluation of atmospheric optical properties. Remote determination of APSD might be performed with multiwavelength lidar. Retrieval of profiles of APSD from multiwavelength lidar signals is an example of ill-posed problem in the atmospheric physics (in the sense of Jacques Hadamard). Versions of this program held in the CPC repository in Mendeley Data AEXV_v1_0; APSD_Software; 10.1016/j.cpc.2015.08.024 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)摘要 本文介绍一款可从多波长激光雷达（Light Detection and Ranging, Lidar）信号中反演气溶胶粒子尺度分布（Aerosol Particle Size Distribution, APSD）廓线的软件。该方法通过将基于预设分布生成的人工信号与实验信号进行直接拟合实现反演。预设APSD采用带有少量自由参数的双对数正态函数（lognormal function）组合形式。通过极小化技术可求解得到实现最优拟合的对数正态函数参数。该方法已在实验信号上完成测试。 程序名称：APSD_Software 目录编号：AEXV_v1_0 问题本质 气溶胶粒子尺度分布（APSD）是评估大气光学特性的重要函数。利用多波长激光雷达可实现APSD的遥感反演。从多波长激光雷达信号中反演APSD廓线，是大气物理学中典型的不适定问题（ill-posed problem），符合雅克·阿达马（Jacques Hadamard）对该类问题的定义。 本程序在Mendeley数据平台的CPC资料库中收录的版本如下： AEXV_v1_0；APSD_Software；DOI: 10.1016/j.cpc.2015.08.024 本程序源自贝尔法斯特女王大学馆藏的CPC程序库（1969-2018年）