Micro rain radar (MRR) raw data measured at Neumayer Station (2021-10), links to files@en

The meteorological observatory Neumayer continuously operates a vertically looking single column 24 GHz meteorological Doppler radar (METEK MRR-PRO) to monitor hydrometeors. The instrument essentially records radar reflectivity and Doppler velocity in 128 vertical range gates. The vertical resolution is set to 50m, hence the maximal altitude is 6400m; the temporal resolution is typically 1 second. The instrument was initially installed in January 2019 and is mounted on the roof of the Neumayer Station III. Since the station altitude changes slightly over time the instrument height above sea level can change over time too. This is documented in the netCDF variable \"range:meters_to_center_of_first_gate\", initially 65m. Since installation an interfering signal which could not be readily identified and removed disturbs the measurements in range gates 7 to 10, i.e. 370m to 520m. The disturbance can easily be identified and filtered for analysis of the data. This dataset contains the full raw data from the instrument. All data published here is left \"as recorded\", no quality control was applied. Still, some concatenation and temporal re-sorting was sporadically applied to homogenise the temporal file granularity. Any such operations are documented in the netCDF global attribute \"history\" of the respective files.纽迈尔（Neumayer）气象观测站持续运行一台垂直指向的单柱式24 GHz气象多普勒雷达（METEK MRR-PRO），用于监测气象水凝物（hydrometeors）。该仪器核心记录128个垂直距离门内的雷达反射率与多普勒速度：其垂直分辨率设为50米，对应最大探测高度达6400米；时间分辨率通常为1秒。该仪器于2019年1月首次安装，搭载于纽迈尔III号站（Neumayer Station III）的屋顶。由于站点海拔随时间小幅波动，仪器的海平面基准高度也会随之变化，该信息已记录于网络通用数据格式（netCDF）变量"range:meters_to_center_of_first_gate"中，初始值为65米。自安装以来，一组难以快速识别与消除的干扰信号会对7至10号距离门（对应370米至520米区间）的测量数据造成干扰。不过该干扰信号易于识别，可在数据分析阶段完成滤波剔除。本数据集包含该仪器的全部原始数据，此处发布的所有数据均保持"原始录制状态"，未施加任何质量控制流程。但为统一时间文件的粒度一致性，曾零星开展过数据拼接与时间重排序操作，此类操作均已在对应文件的netCDF全局属性"history"中完成记录。