Turbulence Measurements from Mesospheric Radar Scattering

研究人员使用MAPSTAR中频部分反射雷达（在阿雷西博大气动力学倡议期间运行）的实验数据。 他计划修正先前发表的估计大气湍流在中层顶，推导出中频雷达，应用成像多普勒干涉（IDI）技术。 IDI测量单个散射体的位置和视线速度，因此只能选择接近天顶的散射体，最大限度地减少重力波速度的较大水平分量对垂直速度的污染。 他的方法校正了IDI数据的剩余重力波和有限天顶角污染。 最后，他比较多普勒展宽，衰落率和IDI湍流耗散率测量使用AIDA数据集。

The investigator uses experimental data from the MAPSTAR medium frequency partial reflection radar (operated during the Arecibo Initiative on the Dynamics of the Atmosphere). He plans corrections to previously published estimates of atmospheric turbulence in the mesopause, deduced from medium frequency radar, applying the imaging Doppler interferometry (IDI) technique. IDI measures positions and line-of-sight velocities of individual scatterers, so only those scatterers close to the zenith can be chosen, minimizing contamination of the vertical velocity by the larger horizontal components of gravity wave velocities. His method corrects both the remaining gravity wave and finite zenith angle contamination of IDI data. Finally, he compares Doppler broadening, fading rate and IDI turbulent dissipation rate measurements using the AIDA data set.