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Multiple-scattering effect on ozone retrieval from space-based differential absorption lidar measurements

机译：天基差分吸收激光雷达测量对臭氧回收的多重散射效应

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摘要

Single-scattering and multiple-scattering lidar signals are calculated for a spaceborne differential absorption lidar system for global ozone measurements at the on and off wavelength pair at 305 and 315 nn. The effect of multiple scattering is found to be negligible on stratospheric and tropospheric ozone retrieval under background stratospheric aerosol. Under low-visibility conditions in the planetary boundary layer the presence of multiple scattering causes an overestimation in maritime aerosol and an underestimation in urban as well as in rural aerosol. This effect is also examined in three cirrus models. The multiple scattering does not permit accurate ozone retrieval within cirrus; however, below it the solution recovers somewhat with generally an underestimation depending on the type and density of cirrus. The effect of aerosol and Rayleigh extinction on the ozone retrieval is also discussed. (C) 1998 Optical Society of America. [References: 11]
机译：针对星载差分吸收激光雷达系统，计算了单散射和多散射激光雷达信号，用于在305和315 nn的开和关波长对上进行整体臭氧测量。发现在背景平流层气溶胶下对平流层和对流层臭氧的回收对多次散射的影响可以忽略。在行星边界层的低能见度条件下，多重散射的存在会导致对海洋气溶胶的高估，而对城市以及农村气溶胶的低估。在三个卷云模型中也检查了这种效果。多重散射不允许在卷云中准确地回收臭氧;但是，根据卷云的类型和密度，在其以下，溶液的回收率有些被低估。还讨论了气溶胶和瑞利灭绝对臭氧回收的影响。 （C）1998年美国眼镜学会。 [参考：11]

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