Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Identification of the Planetary Magnetosphere Boundaries with the Wavelet Multi-Resolution Analysis

Version 1 : Received: 1 July 2021 / Approved: 2 July 2021 / Online: 2 July 2021 (14:21:41 CEST)

How to cite: Bolzan, M.; Echer, E.; Franco, A.M.D.S.; Hajra, R. Identification of the Planetary Magnetosphere Boundaries with the Wavelet Multi-Resolution Analysis. Preprints 2021, 2021070062 (doi: 10.20944/preprints202107.0062.v1). Bolzan, M.; Echer, E.; Franco, A.M.D.S.; Hajra, R. Identification of the Planetary Magnetosphere Boundaries with the Wavelet Multi-Resolution Analysis. Preprints 2021, 2021070062 (doi: 10.20944/preprints202107.0062.v1).

Abstract

The Haar wavelet decomposition technique is used to detect the planetary magnetosphere boundaries and discontinuities. We use the magnetometer data from the CASSINI and MESSENGER spacecraft to identify the abrupt changes in the magnetic field when the spacecraft crossed the magnetospheric bow shocks and magnetopauses of Saturn and Mercury, respectively. The results confirm that the Haar transform can efficiently identify the planetary magnetosphere boundaries characterized by the abrupt magnetic field changes. It is suggested that this technique can be applied to detect the planetary boundaries as well as the discontinuities such as the shock waves in the interplanetary space.

Subject Areas

planetary magnetosphere; planetary bow shocks; planetary magnetopauses; Haar wavelet; Solar wind; Wavelet analysis

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