Collaborative Research: CEDAR: Quantification of Gravity Wave Instability Dynamics and Mean Forcing Using MTM and Related Instrumentation at ALOMAR and Maui MALT

在夏威夷Haleakala山和挪威北部的北极大气研究激光雷达观测站（ALOMAR）对温度、风和重力波结构进行了综合测量，用于量化中高层大气之间动量转移的关键参数。重点放在不稳定性在重力波动力学中的作用的量化，动量输运和沉积的量化，以及两个地区重力波平均强迫的确定。该方法包括激光雷达、光学干涉仪、成像仪和雷达的操作，以及随后的数值模拟，以允许对重力波振幅、平均流量和动量通量的不稳定动力学响应进行量化。在两个地点，一个极地和一个赤道的观测表明，该方法适用于非常不同的环境条件，或部分受天气调节的平均流量条件。

Comprehensive measurements of temperature, winds, and gravity wave structure at two sites, Mt. Haleakala Hawaii and the Artic Lidar Observatory for Middle Atmosphere Research (ALOMAR) in Northern Norway, are used to quantify key parameters aspects of the momentum transfer between the middle and upper atmosphere. Emphasis is placed on quantification of the role of instabilities in gravity wave dynamics, quantification of momentum transport and deposition, and determinations of mean forcing by gravity waves in the two regions. The methodology includes operation of lidars, optical interferometers, imagers, and radars, with subsequent numerical modeling to permit quantification of the response to instability dynamics on gravity wave amplitudes, on the mean flow, and on the momentum flux. Observations at two sites, one polar and one equatorial reveal the adaptability of the methodology to regions of very disparate ambient, or mean-flow conditions that are modulated in part by weather.