Planetary boundary layer height (PBLH) over the SGP

Given the rapid change in clouds over land, radiosonde observations have limitations when it comes to tracking cloud development due to the coarse temporal resolution and drifting of the balloon. We thus developed a lidar-based method to identify the coupled states of clouds based on our new algorithm for retrieving the PBLH that can better track the diurnal variations in PBLH than conventional lidar-based approaches (Su et al., 2020). We adapted this algorithm for retrieving the PBLH and developed a new scheme to deal with cloudy conditions (Su et al., 2022). Following the original method (Su et al., 2020), the rainy cases are eliminated in the quality-control process. The quality-control flag is provided in the dataset file. Su, T., Zheng, Y. and Li, Z., 2022. Methodology to determine the coupling of continental clouds with surface and boundary layer height under cloudy conditions from lidar and meteorological data. Atmospheric Chemistry and Physics, 22(2), pp.1453-1466. Su, T., Li, Z. and Kahn, R., 2020. A new method to retrieve the diurnal variability of planetary boundary layer height from lidar under different thermodynamic stability conditions. Remote Sensing of Environment, 237, p.111519.

鉴于陆地云系变化迅速，无线电探空仪（radiosonde）观测受限于较低的时间分辨率与气球漂移效应，无法有效追踪云系的演变过程。为此，本研究基于反演行星边界层高度（Planetary Boundary Layer Height, PBLH）的新算法，开发了一种基于激光雷达（lidar）的云耦合状态识别方法；相较于传统激光雷达反演方案，该算法可更精准地捕捉行星边界层高度的日变化特征（Su等，2020）。本研究对该行星边界层高度反演算法进行了适配优化，并提出了一种针对多云条件的全新处理流程（Su等，2022）。遵循原始方法（Su等，2020），本数据集在质量控制环节剔除了降水过程样本，数据集文件中附带质量控制标记。

参考文献：
1. Su T, Zheng Y, Li Z. 2022. Methodology to determine the coupling of continental clouds with surface and boundary layer height under cloudy conditions from lidar and meteorological data[J]. 大气化学与物理, 22(2): 1453-1466.
2. Su T, Li Z, Kahn R. 2020. A new method to retrieve the diurnal variability of planetary boundary layer height from lidar under different thermodynamic stability conditions[J]. 环境遥感, 237: 111519.