Sensing of Radio Refractivity and Aerosol Extinction

摘要

Sensing of radio refractivity has historically been accomplished with directsensing techniques such as radiosondes. While direct sensing techniques provide good data for propagation assessment purposes, remotely sensed data would be more desirable, Various direct and remote sensing techniques and an assessment of their potential operational usefulness are reviewed. Included are radiosondes, refractometers, radar sounders, lidars, satellite-based sensors, radiometric and