Radiometric measurements of electron temperature and opacity of ionospheric perturbations
Radiometric measurements of electron temperature and opacity of ionospheric perturbations
Changes in the sky noise spectrum are used to characterize perturbations in the ionosphere. Observations were made at the same sidereal time on multiple days using a calibrated broadband dipole and radio spectrometer covering 80 to 185 MHz. In this frequency range, an ionospheric opacity perturbation changes both the electron …