# Magnetic Shear Damped Polar Convective Fluid Instabilities

Source: [Magnetic Shear Damped Polar Convective Fluid Instabilities](<https://www.sota2.com/research/paper/68fa37561e209131ce8b179e>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T22:20:47.719Z

Authors: Jyoti K Atul, Rameswar Singh, Sanjib Sarkar, Oleg V Kravchenko, Sushil K Singh, Prabal K Chattopadhyaya, Predhiman K Kaw

Published: 2017-09-08T12:01:02.000Z

## Abstract

The influence of the magnetic field shear is studied on the $E\\times B$ (and/or Gravitational) and the Current Convective Instabilities (CCI) occuring in the High latitude F-layer ionosphere. It is shown that magnetic shear reduces the growth rate of these instabilties. The magnetic shear induced stabilization is more effective at the larger scale sizes ($\\geq$ tens of kilometers) while at the scintillation causing intermediate scale sizes ($\\sim$ a few kms), the growth rate is largely unaffected. The eigen mode structure is localised about a rational surface due to finite magnetic shear and has broken reflectional symmetry due to centroid shift of the mode by equilibrium parallel flow or current.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1709.02666>)

[PDF](<https://arxiv.org/pdf/1709.02666.pdf>)