wsacrblrhi (b1)

ARM's scanning cloud radars are fully coherent dual-frequency, dual-polarization Doppler radars mounted on a common scanning pedestal. Each pedestal includes a Ka-band radar (2kW peak power) and the deployment location determines whether the second radar is a W-band (WSACR; 1.7 kW peak power) or X-band (XSACR; 20 kW peak power). Beamwidths at Ka and W bands are roughly matched at 0.3 degrees. Due to the narrow antenna beamwidth, ARM’s scanning cloud radars use scanning strategies that are unlike typical weather radars. Rather than focusing on plan position indicator, or PPI, scans, the Ka-SACR uses range height indicator, or RHI, scans at numerous azimuths to obtain cloud volume data. Measurements collected with the W-SACR are copolar and cross-polar radar reflectivity, Doppler velocity, spectra width and spectra when not scanning, and linear depolarization ration.ARM扫描云雷达是搭载于统一扫描转台的全相干双频双极化多普勒雷达。每套转台集成一台Ka波段雷达（峰值功率2kW），其配套的第二台雷达类型由部署位置决定：可为W波段雷达（WSACR，峰值功率1.7kW）或X波段雷达（XSACR，峰值功率20kW）。Ka波段与W波段的波束宽度均约为0.3°，二者波束宽度大致匹配。由于天线波束极窄，ARM扫描云雷达采用的扫描策略与常规天气雷达存在显著差异。Ka波段扫描云雷达（Ka-SACR）并未采用常规的平面位置显示器（Plan Position Indicator，PPI）扫描模式，而是通过在多个方位角下执行距离高度显示器（Range Height Indicator，RHI）扫描，以获取完整的云体三维数据。W波段扫描云雷达（W-SACR）的观测参数包括同极化与交叉极化雷达反射率、多普勒速度、谱宽、非扫描状态下的雷达频谱，以及线性退极化比。

搜集汇总

背景与挑战

背景概述

该数据集是ARM移动设施在TCAP实验期间采集的W波段扫描云雷达（W-SACR）边界层RHI扫描数据产品，数据级别为b1，用于研究云结构和气溶胶相互作用。