论文标题
通过分析使用GAASP HPD读取的七年数据,表征了Observatorio del Roque de Los Muchachos上方的气溶胶大气
Characterizing the aerosol atmosphere above the Observatorio del Roque de los Muchachos by analyzing seven years of data taken with an GaAsP HPD-readout, absolutely calibrated elastic LIDAR
论文作者
论文摘要
我们提出了一个新的弹性雷达概念,该概念基于双轴安装的ND:YAG激光器和带有HPD读数的望远镜,并结合了快速FADC信号数字化和离线脉冲分析。激光雷达回报信号已被广泛检查并绝对校准。我们分析了在魔术望远镜运行的那个夜晚中获取的七年准连续产物。夜间地面层的表征可产生天顶和方位角依赖性气溶胶灭绝尺度的高度。我们得出了全年从各种高度发出的光的光传输统计数据,并被季节隔开。我们发现云基碱基和顶部高度的进一步季节性依赖性,但没有云的激光比。最后,使用激光雷达光子背景来表征夜空背景光。摘要.txt
We present a new elastic LIDAR concept, based on a bi-axially mounted Nd:YAG laser and a telescope with HPD readout, combined with fast FADC signal digitization and offline pulse analysis. The LIDAR return signals have been extensively quality checked and absolutely calibrated. We analyze seven years of quasi-continuous LIDAR data taken during those nights when the MAGIC telescopes were operating. Characterization of the nocturnal ground layer yields zenith and azimuth angle dependent aerosol extinction scale heights for clear nights. We derive aerosol transmission statistics for light emitted from various altitudes throughout the year and separated by seasons. We find further seasonal dependencies of cloud base and top altitudes, but none for the LIDAR ratios of clouds. Finally, the night sky background light is characterized using the LIDAR photon backgrounds. abstract.txt