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首页> 外文会议>Lidar Remote Sensing for Environmental Monitoring VIII; Proceedings of SPIE-The International Society for Optical Engineering; vol.6681 >Development of an airborne molecular direct detection Doppler lidar for tropospheric wind profiling
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Development of an airborne molecular direct detection Doppler lidar for tropospheric wind profiling

机译：用于对流层风廓线的机载分子直接检测多普勒激光雷达的研制

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Global measurement of tropospheric winds is a key measurement for understanding atmospheric dynamics and improving numerical weather prediction. Global wind profiles remain a high priority for the operational weather community and also for a variety of research applications including studies of the global hydrologic cycle and transport studies of aerosols and trace species. In addition to space based winds, high altitude airborne Doppler lidar systems flown on research aircraft, UAV's or other advanced sub-orbital platforms would be of great scientific benefit for studying mesoscale dynamics and storm systems such as hurricanes. The Tropospheric Wind Lidar Technology Experiment (TWiLiTE) is a three year program to advance the technology readiness level of the key technologies and subsystems of a molecular direct detection wind lidar system by validating them, at the system level, in an integrated airborne lidar system. The TWiLiTE Doppler lidar system is designed for autonomous operation on the WB57, a high altitude aircraft operated by NASA Johnson. The WB57 is capable of flying well above the mid-latitude tropopause so the downward looking lidar will measure complete profiles of the horizontal wind field through the lower stratosphere and the entire troposphere. The completed system will have the capability to profile winds in clear air from the aircraft altitude of 18 km to the surface with 250 m vertical resolution and ＜ 3 m/s velocity accuracy. Progress in technology development and status of the instrument design will be presented.
机译：对流层风的全球测量是理解大气动力学和改善数值天气预报的关键测量。全球风廓线仍然是运营天气界以及各种研究应用的高度优先事项，包括全球水文循环研究以及气溶胶和痕量物种的运输研究。除天基风外，在研究飞机，UAV或其他先进的亚轨道平台上飞行的高空机载多普勒激光雷达系统对研究中尺度动力学和飓风等风暴系统也将具有重大科学意义。对流层风激光雷达技术实验（TWiLiTE）是一项为期三年的计划，旨在通过在集成机载激光雷达系统中对分子直接检测风激光雷达系统的关键技术和子系统进行系统验证，从而提高其技术准备水平。 TWiLiTE多普勒激光雷达系统设计用于由美国国家航空航天局约翰逊（NASA Johnson）运营的高空飞机WB57上的自主运行。 WB57能够在中纬度对流层顶上方飞行，因此向下看的激光雷达将测量穿过低平流层和整个对流层的水平风场的完整轮廓。完整的系统将能够以15 m的垂直分辨率和＜3 m / s的速度精度，对从18 km的飞机高度到地面的晴空进行风廓线。将介绍技术发展的进展和仪器设计的现状。

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