Abstract The ionospheric D-region (~ 60 km up to~ 95 km) and the corresponding neutral
atmosphere, often referred to as the mesosphere–lower thermosphere (MLT), are …

The application of medium-frequency (MF) and high-frequency (HF) partial reflection radar
to investigate the neutral upper atmosphere is one of the oldest such techniques still …

We present the performance characteristics of a high-sensitivity radio receiver for the
frequency band 0.5-470 kHz, known as the Low Frequency Atmospheric Weather …

A spring‐fall asymmetry is observed in daytime amplitude values of very low frequency
(VLF) radio wave signals propagating over the North Atlantic during 2011–2019. We explore …

A new VLF (Very low Frequency) receiver has been developed by the Peruvian Space
Agency (CONIDA) for space weather studies. The receiver has been designed based on a …

Diurnal very low frequency subionospheric radio wave phase measurements show a night‐
to‐day transition pattern. During this sunrise transition a phase perturbation, which consist of …

Концентрация электронов Ne является одним из важнейших параметров ионосферы,
определяющим распространение и поглощение радиоволн. В работе представлены …

Phase height measurements of low frequency radio waves are used to study the long-term
variability of the mesosphere over Europe. Phase height measurements use a characteristic …