Use of GPS network data for HF Doppler measurements interpretation

TL;DR

This paper explores using GPS network data to interpret HF Doppler measurements, aiming to improve understanding of ionospheric disturbances by modeling Doppler shifts with TEC data.

Contribution

It introduces a method to interpret HF Doppler measurements using GPS data and TEC modeling to distinguish medium-scale ionospheric disturbances.

Findings

GPS data can effectively interpret HF Doppler measurements.

TEC modeling helps separate different ionospheric disturbances.

The approach enhances understanding of ionospheric variations.

Abstract

The method of measurement of Doppler frequency shift of ionospheric signal - HF Doppler technique - is one of well-known and widely used methods of ionosphere research. It allows to research various disturbances in the ionosphere. There are some sources of disturbances in the ionosphere. These are geomagnetic storms, solar flashes, metrological effects, atmospheric waves. This method allows to find out the influence of earthquakes, explosions and other processes on the ionosphere, which occur near to the Earth. HF Doppler technique has the high sensitivity to small frequency variations and the high time resolution, but interpretation of results is difficult. In this work we make an attempt to use GPS data for Doppler measurements interpretation. Modeling of Doppler frequency shift variations with use of TEC allows to separate ionosphere disturbances of medium scale.