Ceilometer CL51 raw data measured during POLARSTERN cruise PS108, links to files

The meteorological observatory Polarstern continuously operates a ceilometer to measure cloud height and vertical visibility. The instrument features an upward pointing pulsed diode laser centered at a wavelength of 910nm. Using Light Detection and Ranging (LIDAR) technology the instrument records the backscatter, predominantly caused by hydrometeors such as precipitation and cloud particles. Measurements are taken approximately every 36 seconds. All data published here is left \"as recorded\", no quality control was applied.“极地号”（Polarstern）气象观测站持续运行一台云高仪（ceilometer），用于测量云高与垂直能见度。该仪器配备一台指向天顶的脉冲二极管激光器，中心波长为910纳米。其采用激光雷达（Light Detection and Ranging, LIDAR）技术，记录主要由降水、云粒子等水成物产生的后向散射信号。观测采样间隔约为每36秒一次。此处发布的所有数据均保留原始记录状态，未进行任何质量控制。