Abstract. This paper reports results from an inter-comparison effort involving different sensors/techniques used to measure the Atmospheric Boundary Layer (ABL) height. The effort took place in the framework of the first Special Observing Period of the Hydrological cycle of the Mediterranean Experiment (HyMeX-SOP1). Elastic backscatter and rotational Raman signals collected by the Raman lidar system BASIL were used to determine the ABL height and characterize its internal structure. These techniques were compared with co-located measurements from a wind profiler and radiosondes and with ECMWF-ERA5 data. In the effort we consider radiosondes launched in the proximity of the lidar site, as well as radiosondes launched from the closest radiosonde station included in the Integrated Global Radiosonde archive (IGRA). The inter-comparison effort considers data from October 2012. Results reveal a good agreement between the different approaches, with values of the correlation coefficient R² in the range 0.52 to 0.94. Results clearly reveals that the combined application of different techniques to distinct sensors’ and model datasets allow getting accurate and cross-validated estimates of the ABL height over a variety of weather conditions. Furthermore, correlations between the ABL height and other atmospheric dynamic and thermodynamic variables as CAPE, friction velocity and relative humidity are also assessed to infer possible mutual dependences.

中文翻译：

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HyMeX-SOP1 框架中不同轮廓传感器和模型的 ABL 高度估计的相互比较

摘要。本文报告了涉及用于测量大气边界层 (ABL) 高度的不同传感器/技术的相互比较工作的结果。这项工作是在地中海实验水文循环的第一个特别观测期 (HyMeX-SOP1) 的框架内进行的。拉曼激光雷达系统 BASIL 收集的弹性反向散射和旋转拉曼信号用于确定 ABL 高度并表征其内部结构。这些技术与来自风廓线仪和无线电探空仪的共同定位测量值以及 ECMWF-ERA5 数据进行了比较。在这项工作中，我们考虑了在激光​​雷达站点附近发射的无线电探空仪，以及从全球综合无线电探空仪档案 (IGRA) 中包含的最近的无线电探空站发射的无线电探空仪。²在 0.52 到 0.94 的范围内。结果清楚地表明，不同技术对不同传感器和模型数据集的组合应用允许在各种天气条件下获得准确和交叉验证的 ABL 高度估计。此外，还评估了 ABL 高度与其他大气动力学和热力学变量（如 CAPE、摩擦速度和相对湿度）之间的相关性，以推断可能的相互依赖性。