Evidence of gravity wave breaking in lidar data from the mesopause region
Evidence of gravity wave breaking in lidar data from the mesopause region
复制标题
中层顶区域激光雷达数据中重力波破碎的证据
DOI：
10.1029/2001gl014477
复制
发表时间：
2003
影响因子：
5.2
通讯作者：
R. Collins
中科院分区：
文献类型：
--
作者：
P. M. Franke;R. Collins
关于中间层动力学的一个突出问题是非线性事件的时间和空间分布，例如波破碎，波饱和和波临界层相互作用。这些事件的气候学将帮助我们了解中尺度动力学特征，如重力波，如何与背景平均风和温度结构相互作用。新的激光雷达系统具有向我们显示动态的高度与时间“图片”的分辨率，因此现在可以在仪器的观测窗口内识别单个事件。在星火光学范围（SOR）的钠共振激光雷达提供同时钠密度，温度，和风的三个组成部分。在本文中，我们提出了“图片”的个别波事件明显的激光雷达数据使用的温度（绘制为潜在的温度和光谱），以显示时间演化的波结构。
An outstanding question about the dynamics of the mesosphere is the temporal and spatial distribution of nonlinear events such as wave‐breaking, wave saturation, and wave‐critical layer interactions. A climatology of these events will help us understand how the mesoscale dynamical features, such as gravity waves, interact with the background mean wind and temperature structure. New lidar systems have the resolution to show us a height versus time “picture” of the dynamics so that identifying individual events within the observation window of the instrument is now possible. At the Starfire Optical Range (SOR) a sodium resonance lidar provides simulataneous sodium density, temperature, and three components of the winds. In this paper we present “pictures” of individual wave events apparent in the lidar data using the temperature (plotted as potential temperature and spectra) to show the time evolution of the wave structure.