The Origin of Structure in the Auroral Ionosphere
The Origin of Structure in the Auroral Ionosphere
The auroral ionosphere presents a paradox: turbulence often thrives in a conductive layer that should suppress the growth rates of plasma instabilities. Using a novel composite power spectrum from coherent radar and GPS data, we show that turbulence on a wide range of scales stem not from local instabilities. Instead, its spectrum is a structural imprint of field-aligned electrical currents, and its dissipative character is governed by the flux of precipitating particles. Our measurements provide a clear geophysical example of a driven, emergent system of self-organized dissipative structures.
Luca Spogli、Jean-Pierre St-Maurice、Brian Pitzel、Devin R Huyghebaert、Satoshi Kasahara、Kunihiro Keika、Yoshizumi Miyoshi、Yoichi Kazama、Magnus F Ivarsen、Kaili Song、Saif Marei、Shiang-Yu Wang、Ayako Matsuoka、Iku Shinohara、Shoichiro Yokota、P. T. Jayachandran、Glenn C Hussey
地球物理学大气科学（气象学）
Luca Spogli,Jean-Pierre St-Maurice,Brian Pitzel,Devin R Huyghebaert,Satoshi Kasahara,Kunihiro Keika,Yoshizumi Miyoshi,Yoichi Kazama,Magnus F Ivarsen,Kaili Song,Saif Marei,Shiang-Yu Wang,Ayako Matsuoka,Iku Shinohara,Shoichiro Yokota,P. T. Jayachandran,Glenn C Hussey.The Origin of Structure in the Auroral Ionosphere[EB/OL].(2025-07-30)[2025-08-10].https://arxiv.org/abs/2507.11755.点此复制
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