Multi-instruments radio diagnostics of geospace
Abstract
Matter in the Earth's space environment is mostly in the plasma state and is dynamically controlled by electric and magnetic fields of widely differing scale sizes. The fundamental driver of natural geospace dynamics is solar activity with CMEs as the most effective of the solar events. The efficiency of the solar driver depends on the actual state of the near-Earth environment. Human activity such as radio broadcasting and operation of electric power systems and heavy industry installations constitute another source of energy which is released into geospace and affects the plasma. Both natural and anthropogenic drivers can lead to a variety of plasma processes, specifically wave-particle interaction, which lead to enhanced plasma turbulence and results in occasionally very intense electromagnetic emissions. Collecting observations from the space satellite and future planned low-orbiting satellites in the topside ionosphere and combining them with ground-based observations from LOFAR and other facilities will open the door for a more comprehensive understanding of the combined natural catastrophic and artificial plasma processes and their interactions in geospace. The LOFAR (Low Frequency Array) radio telescope facility, comprising wide band, and vector sensing radio receivers can be also used for enabling large-scale monitoring services generating unique data for the European (and worldwide) space weather research community. It can also help to solve outstanding problems of space physics and describe long-term environmental changes. The main goal of this presentation is to show implementation of the multi instruments diagnostics, including satellite in situ measurements, such as Demeter, Relec, Cosmic as well as ground based infrastructures, such as GNSS, Ionosondes, LOFAR for description of the ionospheric structures of different scales (large and small scale irregularities). This method allows for studying the ionospheric structures dynamics through their description in 3D space and time domain distributions. Geometry, anisotropy, size and drift velocity can also be determined and studied in different geomagnetic conditions and solar cycles.
- Publication:
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43rd COSPAR Scientific Assembly. Held 28 January - 4 February
- Pub Date:
- January 2021
- Bibcode:
- 2021cosp...43E.672R