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首页> 外文期刊>Atmospheric Measurement Techniques >Characterization of atmospheric aerosol optical properties based on the combined use of a ground-based Raman lidar and an airborne optical particle counter in the framework of the Hydrological Cycle in the Mediterranean Experiment – Special Observation Period 1
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Characterization of atmospheric aerosol optical properties based on the combined use of a ground-based Raman lidar and an airborne optical particle counter in the framework of the Hydrological Cycle in the Mediterranean Experiment – Special Observation Period 1

机译：在地中海实验的水文循环框架中，结合使用地面拉曼激光雷达和机载光学粒子计数器，对大气气溶胶光学特性进行表征-特殊观察期1

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Vertical profiles of the particle backscattering coefficient at 355, 532 and 1064?nm measured by the University of Basilicata Raman lidar system (BASIL) have been compared with simulated particle backscatter profiles obtained through a Mie scattering code based on the use of simultaneous and almost co-located profiles provided by an airborne optical particle counter. Measurements were carried out during dedicated flights of the French research aircraft ATR42 in the framework of the European Facility for Airborne Research (EUFAR) project “WaLiTemp”, as part of the Hydrological Cycle in the Mediterranean Experiment – Special Observation Period 1 (HyMeX-SOP1). Results from two selected case studies are reported and discussed in the paper, and a dedicated analysis approach is illustrated and applied to the dataset. Results reveal a good agreement between measured and simulated multi-wavelength particle backscattering profiles. Specifically, simulated and measured particle backscattering profiles at 355 and 532?nm for the second case study are found to deviate less than 15?% (mean value =5.9 %) and 50?% (mean value =25.9 %), respectively, when considering the presence of a continental–urban aerosol component, while slightly larger deviation values are found for the first study. The reported good agreement between measured and simulated multi-wavelength particle backscatter profiles testifies to the ability of multi-wavelength Raman lidar systems to infer aerosol types at different altitudes.
机译：将巴西利卡塔大学拉曼激光雷达系统（BASIL）在355、532和1064？nm处测得的粒子后向散射系数的垂直分布与通过同时使用并几乎同时使用余弦的米氏散射代码获得的模拟粒子后向散射分布进行了比较机载光学粒子计数器提供的定位图。在欧洲机载研究设施（EUFAR）项目“ WaLiTemp”的框架内，法国研究飞机ATR42的专用飞行期间进行了测量，这是地中海实验–特别观测期1（HyMeX-SOP1）中水文循环的一部分）。报告并讨论了两个案例研究的结果，并说明了专用的分析方法并将其应用于数据集。结果表明，在测量和模拟的多波长粒子反向散射曲线之间有很好的一致性。具体而言，在第二个案例研究中，在355和532？nm处模拟和测量的粒子后向散射曲线的偏差分别小于15％（平均值= 5.9％）和50％（平均值= 25.9％）。考虑到大陆-城市气溶胶成分的存在，而首次研究发现偏差值稍大。所报告的在测量和模拟的多波长粒子后向散射曲线之间的良好一致性证明了多波长拉曼激光雷达系统推断不同高度的气溶胶类型的能力。

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