Analyses of vertical wind profile data from the VORTEX-Southeast 2017 field campaign

This dataset contains observations from the Collaborative Lower Atmospheric Mobile Profiling System (CLAMPS) and NOAA Air Resources Laboratory, Atmospheric Turbulence and Diffusion Division) micrometeorological towers that were analyzed in the Markowski et al. (2019) study. That study used CLAMPS Doppler lidar observations of near-surface vertical wind profiles, and NOAA tower observations of near-surface shear and vertical momentum fluxes, both of which were obtained during the spring 2017 Verification of the Origins of Rotation in Tornadoes Experiment–Southeast (VORTEX-Southeast) field project, to document departures from the predictions of Monin–Obukhov similarity theory (MOST). The study focused on MOST departures on thunderstorm days, both in the warm air masses ahead of storms and within the cool outflow of storms, where MOST assumptions (e.g., horizontal homogeneity and a steady state) are least credible. The dataset also includes all code used to perform the analyses and create the figures shown in the above-referenced journal publication. Additional documentation is provided in the README files that are contained in the zip file.

本数据集收录了协同低层大气移动廓线系统（Collaborative Lower Atmospheric Mobile Profiling System，CLAMPS）与美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration，NOAA）空气资源实验室大气湍流与扩散分部的微气象塔观测数据，该批数据曾被Markowski等人2019年的研究进行分析。该研究依托2017年春季“龙卷旋转起源验证-东南部野外试验（Verification of the Origins of Rotation in Tornadoes Experiment–Southeast，VORTEX-Southeast）”期间获取的CLAMPS多普勒激光雷达近地面垂直风廓线观测资料，以及NOAA铁塔观测的近地面切变与垂直动量通量数据，揭示了莫宁-奥布霍夫相似理论（Monin–Obukhov similarity theory，MOST）的预测偏差。研究聚焦雷暴天气下的MOST偏差，既涵盖风暴前置暖气团中的偏差，也包含风暴冷外流区域的偏差——在此类场景中，MOST的核心假设（如水平均一性与稳态假设）的可信度降至最低。本数据集同时包含了用于完成上述分析、复现前述期刊论文中全部图表的完整代码。压缩包内的README文件提供了额外的配套说明文档。