CEDAR: Lidar Studies of the Arctic Middle Atmosphere at Poker Flat, Alaska

该合同将支持在阿拉斯加费尔班克斯附近的扑克平台研究靶场部署共振激光雷达。激光雷达将提供从对流层上层到热层下层的北极中层大气的测量。激光雷达利用分子、气溶胶和金属原子的散射来测量平流层和中间层的密度、温度、气溶胶后向散射比和金属密度。这些测量将用于处理目前研究感兴趣的几个专题：气溶胶在高纬度平流层化学中的作用、极地中间层气溶胶的发生、低层中间层和平流层的温度结构、中间层金属层的结构以及中间层顶区域的波浪和潮汐特征。激光雷达测量将得到在扑克平原研究靶场进行的各种大气和极光研究的补充。

This award will support the deployment of a resonance lidar at the Poker Flat Research Range near Fairbanks, Alaska. The lidar will provide measurements of the arctic middle atmosphere from the upper troposphere to the lower thermosphere. The lidar employs scattering from molecules, aerosols, and metal atoms to yield measurements of density, temperature, aerosol backscatter ratio, and metal density in the stratosphere and mesosphere. The measurements will be used to address several topics of current research interest: the role of aerosols in the chemistry of the high latitude stratosphere, the occurrence of aerosols in the polar mesosphere, the temperature structure of the lower mesosphere and stratosphere, the structure of the mesospheric metal layers, and the characteristics of waves and tides in the mesopause region. The lidar measurements will be complemented by a variety of studies of the atmosphere and the aurora being conducted at the Poker Flat Research Range.