Ground-based cloud radar measurements with MiRAC-A at AWIPEV, Ny-Ålesund (July 2017 - October 2018)@en

Cloud radars provide information on micro- and macrophysical properties of clouds and precipitation. Continuous zenith-pointing cloud radar observations were made with the 94 GHz (W-band) frequency modulated continuous wave Doppler radar (model RPG-FMCW-94-SP) named MiRAC-A. Measurements were carried out at the AWIPEV Atmospheric Observatory in Ny-Ålesund, Svalbard, from 28 July 2017 to 8 October 2018. The atmospheric column from 100 m to 12 km above the surface was profiled with a vertical resolution of 3.2-24 m and a temporal resolution of 2 s. The data was post-processed to correct for Doppler aliasing and the radar calibration was adjusted based on a reference radar. The data includes the equivalent radar reflectivity factor, mean Doppler velocity, and skewness and kurtosis of the Doppler spectra. Some technical parameters and flags related to measurement operation, post-processing, and data quality, which could be relevant for some data users, are also provided.云雷达可提供云与降水的微物理及宏物理特性相关信息。本数据集采用命名为MiRAC-A的94 GHz（W波段）调频连续波多普勒雷达（型号RPG-FMCW-94-SP）开展连续天顶指向式云雷达观测。观测工作于2017年7月28日至2018年10月8日期间，在斯瓦尔巴群岛新奥尔松的AWIPEV大气观测站完成。观测覆盖地表以上100米至12千米的大气柱体，垂直分辨率为3.2~24米，时间分辨率为2秒。数据已经过后处理，以校正多普勒混叠问题，并基于参考雷达对雷达校准参数进行了调整。数据集包含等效雷达反射率因子、平均多普勒速度，以及多普勒频谱的偏度与峰度。此外还提供了部分与测量操作、后处理及数据质量相关的技术参数与标记，可供部分数据用户参考使用。