TEAMx-PC22 (TEAMx pre-campaing 2022) - KITcube cloud radar horizontal winds (from PPI) in Kolsass

The RPG FMCW dual-pol dual-frequency cloud radar was operated in Kolsass. This data set contains wind speed and wind direction in 10 min. temporal resolution for both frequencies, 94 GHz and 35 GHz. The wind is determined from PPI at 70 degree elevation via an unfolding VAD algorithm (see Pierre Tabary, Georges Scialom, and Urs Germann. Real-time retrieval of the wind from aliased velocities measured by doppler radars. J. Atmos. Oceanic Technol., 18 (6):875–882, June 2001.) PPIs were performed from May, 31st, through Aug, 26th, 2022. There were technical problems which caused partly very long measurement gaps especially in the second half of the period. Data are stored as one NetCDF file.<br>RPG FMCW双极化双频云雷达于科尔萨斯（Kolsass）投入观测。本数据集涵盖94 GHz与35 GHz两个频段的观测数据，时间分辨率为10分钟，包含风速与风向两项参数。风速通过70度仰角下的平面位置显示器（PPI）观测数据，借助速度方位显示（VAD）解模糊算法反演得到（详细方法参见Pierre Tabary、Georges Scialom与Urs Germann于2001年6月发表于《Journal of Atmospheric and Oceanic Technology》第18卷第6期第875至882页的论文《Real-time retrieval of the wind from aliased velocities measured by doppler radars》）。本次观测采用PPI扫描模式，观测时段为2022年5月31日至2022年8月26日。观测期间曾发生技术故障，导致出现多段较长的观测数据空缺，尤其在观测后半段更为突出。所有数据以单个NetCDF文件格式存储。