Lidar Observations of Aircraft Exhaust Plumes
Lidar Observations of Aircraft Exhaust Plumes
复制标题
飞机尾气羽流的激光雷达观测
DOI：
10.1175/2010jtecha1412.1
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发表时间：
2010
影响因子：
2.2
通讯作者：
D. Raper
中科院分区：
文献类型：
--
作者：
M. Bennett;S. Christie;A. Graham;D. Raper
摘要为了测量商用飞机排气羽流的扩散，在英国机场使用快速扫描激光雷达和其他仪器进行了一系列的实地活动。激光雷达工作在355 nm的波长，因此有效地眼睛安全。激光雷达信号的分析软件已被精心设计，使相当弱的信号（通常是百分之几十的环境后向散射）从飞机排气被区分，并促进自动处理所获得的测量。这种处理可以提供图像，动画和数值参数化的分散羽流。总的来说，在曼彻斯特的两次行动中监测了1353次空中交通活动，在希思罗机场的一次行动中监测了439次。所有的模式都被观察到了：滑行、起飞、旋转、爬升、进近和着陆。其中，最完整的数据集是起飞开始时获得的数据集：在这种模式下，源处于全功率状态，但仍在相对运动。
Abstract A series of field campaigns has been made at British airports using a rapid-scanning lidar and other instrumentation in order to measure the dispersion of exhaust plumes from commercial aircraft. The lidar operated at a wavelength of 355 nm and was thus effectively eye safe. Analysis software for the lidar signals has been elaborated to enable the rather weak signals (typically a few tens of percent of ambient backscatter) from aircraft exhaust to be distinguished and to facilitate automatic processing of the measurements obtained. Such processing can deliver images, animations, and numerical parameterizations of the dispersing plumes. Overall, 1353 air traffic movements were monitored over two campaigns at Manchester and 439 in a single campaign at Heathrow. All modes were observed: taxiing, takeoff, rotation, climb-out, approach, and landing. Of these, the most complete dataset was that obtained for the start of the takeoff run: in this mode, the source is on full power but is still moving rela...