Spatio-temporal small-scale features of field-aligned currents in space plasmas.
Consolini G., De Michelis P., Alberti T., Tozzi R., Coco I., Giannattasio F.
IV - Geofisica e fisica dell'ambiente
GSSI Ex ISEF - Aula D - Lunedì 23 h 15:00 - 19:00
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The fine structure of Field-Aligned Currents (FACs) in the high latitude ionospheric space plasmas is studied using Swarm Level-2 (L2-FAC) single-spacecraft product obtained considering the Swarm A satellite. In particular, we investigate the statistical and scaling features of the FAC at the highest available resolution, comparing the results with the character of magnetic-field fluctuations. The topological nature of FACs in a quasi--force-free configuration and the occurrence of current filamentation are discussed in relationship to the non-Gaussian character of current fluctuations.