Some Challenges of Geomagnetism Addressed with the Use of Ground and Satellite Observations

Abstract

—Continuous growth of geomagnetic observations requires adequate methods for their processing and analysis. However, many studies in the field of geomagnetism require accurate and reliable measurements performed on the ground and in outer space. Mathematical methods of geoinformatics can provide a solution to these problems. The article describes the progress made in the field of intellectual analysis of geomagnetic data continuously recorded by magnetic observatories and low-orbit satellites, demonstrates the results in the study of rapid variations of the Earth’s core magnetic field associated with the deep processes of the Earth, and presents the investigation of near-Earth electromagnetic dynamics. The applied value of the obtained results is shown.

On a Novel Approach to Correcting Temperature Dependencies in Magnetic Observatory Data

“…The study of the nature of the Earth's magnetic field (EMF) and the development of mathematical models to describe it are inseparable from improvements in methods for measuring and processing geomagnetic data. Despite a constant increase in the quantity and quality of measurements performed by research satellites in near-Earth space, groundbased continuous magnetic field measurements are still the most accurate and long-term series of observations of secular changes in the EMF [1,2]. The organization of the first magnetic observatories goes back to Carl Friedrich Gauss, who, as the founder of the EMF modelling method, realized the need for continuous observations of the EMF in specially equipped magnetic observatories.…”