915-MHz Radar Wind Profiler/RASS (RWP915): wind consensus data - 915rwpwindcon

\n \nThe radar wind profiler/radio acoustic sounding system (RWP/RASS), available in 915-MHz (for U.S. deployments) and 1290-MHz (for foreign deployments), measures wind profiles and backscattered signal strength between (nominally) 0.1 km and 5 km and virtual temperature profiles between 0.1 km and 2.5 km. However, ARM no longer operates the RASS portion. \n \nThe RWP transmits electromagnetic energy into the atmosphere in as many as five directions (four tilted in opposing vertical planes and on vertical) and measures the strength and frequency of backscattered energy. Calculation of the Doppler shift of the returned signal allows calculation of the atmospheric wind profile.

雷达风廓线仪/无线电声学探测系统（Radar Wind Profiler/Radio Acoustic Sounding System, RWP/RASS）支持915兆赫兹（适配美国部署场景）与1290兆赫兹（适配海外部署场景）两种工作频段，可在标称0.1千米至5千米的高度范围内测量大气风廓线与后向散射信号强度，并在0.1千米至2.5千米的高度范围内测量虚温廓线。不过目前ARM已停止运营其RASS子系统。
该RWP可向大气中最多五个方向发射电磁能量，其中四个分别位于两个对立垂直平面内倾斜布置，剩余一个为垂直方向，并可测量后向散射能量的强度与频率。通过对返回信号的多普勒频移进行计算，即可反演得到大气风廓线。