ANLC-93: Aircraft-Borne and Ground-Based Hydroxyl and NLC Measurements of Small and Large-Scale Dynamics in the Polar Summer Mesosphere

作为北极夜光云行动-93的一部分，国际和平研究所提议对羟基红外夜光进行机载和地面光谱观测，并对近地天体进行摄影观测。这样做是为了调查北极夏季期间存在的残余重力场和行星波场，以及它们与中间层云形成的可能关系。其目的是测量来自NCAR飞机的OH夜光辐射和温度。这样做既是为了确定NLC和PMC区域的中间层的特征，也是为了检查飞机激光雷达探测到的中间层云与OH重力波和行星尺度扰动的地理特征的关系。接下来，PIS建议通过观测位于约60oN的地面站的OH夜辉辐射和温度来描述整个活动期间的极地夏季中间层的特征。这些测量将用于检查重力波和行星尺度扰动的时间行为，并将提供可能解释飞机数据的背景。最后，NLC的存在将在地面站上进行摄影记录，以确定NLC的出现频率、范围、高度以及NLC的结构和形态。

As part of the Arctic Noctilucent Cloud Campaign-93, the PIs propose to make aircraft-borne and ground-based spectroscopic observations of the hydroxyl infrared nightglow as well as photographic observations of NLC. These will be done to investigate the residual gravity and planetary wave fields present during the Arctic summer and their possible relationship to the formation of mesospheric clouds. The intent is to measure the OH nightglow radiance and temperature from the NCAR aircraft. This will be done both to characterize the mesosphere in the NLC and PMC regions and to examine the relationship of the mesospheric clouds detected by the aircraft Lidar to the geographical characteristics of the OH gravity waves and planetary-scale disturbances. Next, the PIs propose to characterize the polar summer mesosphere throughout the campaign with observations of the OH nightglow radiance and temperature from ground stations located at about 60oN. These measurements will be used to examine the temporal behavior of gravity waves and planetary scale disturbances and will provide the context within which the aircraft data may be interpreted. Finally, the presence of NLC will be photographically documented over the ground stations in order to determine the occurrence frequency, extent, altitude and the structure and morphology of the NLC.