wacraux (a0)

The W-band ARM Cloud Radar (WACR) systems are zenith-pointing Doppler radars that probe the extent and composition of clouds at 95.04 GHz. The main purpose of this radar is to determine cloud boundaries (e.g., cloud bottoms and tops). This radar reports estimates for the first three spectra moments for each range gate up to 15 km. The 0th moment is reflectivity, the 1st moment is radial velocity, and the 2nd moment is spectral width. Also available are the raw spectra files. Unlike the millimeter wavelength cloud radar (MMCR), the WACR does not use pulse coding and operates in only copolarization and cross-polarization modes.W波段ARM云雷达（W-band ARM Cloud Radar，WACR）系统是工作于95.04 GHz的天顶指向式多普勒雷达，用于探测云的分布范围与组成特性。该雷达的核心用途为确定云的边界（如云底与云顶）。它可对15千米范围内的每个距离门输出前三级谱矩的估算结果：第0级矩为反射率、第1级矩为径向速度、第2级矩为谱宽。此外，该数据集还提供原始谱文件。与毫米波云雷达（millimeter wavelength cloud radar，MMCR）不同，WACR未采用脉冲编码技术，且仅支持同极化与交叉极化两种工作模式。