Preprints
https://doi.org/10.5194/egusphere-2026-6080
https://doi.org/10.5194/egusphere-2026-6080
30 Oct 2026
 | 30 Oct 2026
Status: this preprint is open for discussion and under review for Annales Geophysicae (ANGEO).

Controverses of Magnetospheric Substorm from Thermodynamic Standpoint

Andrei Moldavanov

Abstract. In magnetospheric physics, the substorm development, understood as the forming of explosive release of energy from Earth’s magnetotail into the ionosphere and the near magnetosphere, is a subject of long-standing scientific debates. Yet, despite obvious progress, the emergence of a substorm demonstrates some effects that cannot be easily interpreted based on the existing observational and analytical models. These effects are frequently referred to as "controversies," as they can support entirely opposing physical frameworks. In this report, some well-known controversies are discussed in the light of possible resolution based on the thermodynamical model of conserved energy links.

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Andrei Moldavanov

Status: open (until 11 Dec 2026)

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Andrei Moldavanov
Andrei Moldavanov
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Short summary
A substorm is an essential element of space weather. The theories dealing with an interpretation of a substorm suffer from the presence of the controversies that impede the development of an understanding of the substorm. The role of the controversies is especially high at the creation of the new knowledge, as oftentimes controversies prompt the wrong way for development. The main substorm controversies center on their physical triggers, onset timing, and relationship with geomagnetic storms.
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