Multiscale Dissipative Processes in the Earth’s Magnetotail

Abstract

The dissipation in the geomagnetic tail is a process that stops the cascade transfer of energy in the inertial turbulent range and transforms the energy of turbulent motions into heating. In the case of kinetic turbulence with the dominance of the thermal pressure over the magnetic field pressure, dissipation is also possible in the inertial range. This study considers an approach for obtaining the distribution of the energy-conversion rate (multiscale spectrum) of the electromagnetic field with the preliminary involvement of the multispacecraft method for calculating the current density. For the first time, a multiscale spectrum of the energy conversion rate in the tail of the Earth’s magnetosphere is obtained and analyzed. The results of measuring the magnetic and electric fields by the MMS mission spacecraft in the region of the current stratum and during high-speed plasma flows in the plasma layer during September 8, 2021 are used.