CEDAR: Exploration of Lower-atmosphere Wave Forcing, Vertical Wave Coupling and Their Impacts on the Ionosphere and Thermosphere Variability Using WAM, Lidar and ISR

该项目的目标是调查源自低层大气的波强迫，包括它们的来源、波的相互作用和耦合，以及它们对电离层/热层可变性的影响。来自低层大气的波能气象来源负责在高层大气中产生显著的可变性，从而影响空间天气。垂直波耦合是一种基本的大气过程，它对电离层和热层的变化有着深远的影响。该项目将利用现有和正在进行的激光雷达和非相干散射雷达(ISR)观测，共同研究中性大气和电离层中的大气波，并利用整个大气模式(WAM)来理解和解释这些丰富的数据集。特别是，该项目将侧重于通过比较观测和模拟在震级、垂直和水平波长、传播方向和纬度分布方面的特征来描述1-9小时周期的重力波。还将研究快速重力波的潮汐调制，并确定震源区。

The goal of this project is to investigate wave forcings originating from the lower atmosphere including their sources, wave interactions and coupling, and their impacts on ionospheric/thermospheric variability. Meteorological sources of wave energy from the lower atmosphere are responsible for producing significant variability in the upper atmosphere, which impacts space weather. Vertical wave coupling is a fundamental atmospheric process that has profound effects on the variability of the ionosphere and thermosphere. This project will utilize existing and ongoing lidar and Incoherent Scatter Radar (ISR) observations to collectively study atmospheric waves in both the neutral atmosphere and ionosphere, and the Whole Atmosphere Model (WAM) to understand and interpret these rich datasets. In particular, the project will focus on characterizing 1-9 h period gravity waves by comparing observations with simulations in terms of magnitude, vertical and horizontal wavelengths, propagation direction, and latitudinal distribution. The tidal modulation of fast gravity waves will also be studied, and the source regions identified.