An unbiased view of the contributions to turbulence cascade in Earth's magnetosheath.
- 1University of Murcia, Department of Electromagnetism and Electronics, Murcia, Spain
- 2Astronomical Institute, CAS, Bocni II/1401,CZ-14100 Prague, Czech Republic
- 3INAF—Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze, Italy
- 4Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze Largo E. Fermi 2, I-50125 Firenze, Italy
- 5INAF—Istituto di Astrofisica e Planetologia Spaziali, via del Fosso del Cavaliere 100, I-00133 Roma, Italy
- 6Department of Mathematics, Physics, and Electrical Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, United Kingdom
- 7CNR/ISTP – Istituto per la Scienza e Tecnologia dei Plasmi, Via Amendola 122/D, 70126 Bari, Italy
- 8Space and Plasma Physics, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, SE-100 44, Sweden
Earth's magnetosheath is a medium where plasma parameters can take a wide range of values and where plasma fluid properties can vary greatly, depending on the distance to the bow shock and the upstream solar wind conditions. Plasma turbulence that develops in the magnetosheath is also affected by these changes, thus giving rise to a similar variety of turbulence regimes.
With the data collected during the MMS unbiased magnetosheath campaign, it is now possible to explore the plasma parameter space of the magnetosheath and study turbulence properties with a set of high-cadence in-situ measurements. This dataset was gathered from February 1st 2023 to April 1st 2023 and consists of 15 inbound magnetosheath crossings from which 300 burst-data intervals were collected. During each crossing, the burst-mode measurements were taken for 3 minutes every 6 minutes, without imposing any selection criteria to collect the data. The length of the time intervals and their time resolution make them suitable to study the turbulent dynamics around the ion spectral break.
In this work we will study the different contributions to the energy cascade rate (measured by means of scaling laws derived from the Hall-MHD equations) and their dependence on plasma conditions, like the plasma beta, and turbulence properties, such as the spectral index and turbulence anisotropy.
How to cite: Montagud-Camps, V., Toledo-Redondo, S., Hellinger, P., Verdini, A., Papini, E., Stawarz, J., Sorriso-Valvo, L., F. Albert, I., and Castilla, A.: An unbiased view of the contributions to turbulence cascade in Earth's magnetosheath., EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-17757, https://doi.org/10.5194/egusphere-egu24-17757, 2024.
