Including Kinetic Ion Effects in the Coupled Global Ionospheric Outflow Solution

Area of Science:

• Space Physics
• Plasma Physics
• Computational Physics

Background:

• Ionospheric outflow is crucial for magnetospheric dynamics.
• Existing models often lack kinetic ion treatments, limiting accuracy.
• Understanding these processes is key to space weather forecasting.

Purpose of the Study:

• To develop and validate an advanced Polar Wind Outflow Model (PWOM).
• To incorporate kinetic ion effects using Particle-in-Cell (PIC) methods.
• To investigate the impact of kinetic ions on global ionospheric outflow and magnetospheric coupling.

Main Methods:

• Coupling hydrodynamic and kinetic (PIC with Monte Carlo collisions) solutions.
• Implementing wave-particle interactions and suprathermal electron effects.
• Utilizing hybrid parallel computing for efficient large-scale simulations.

Main Results:

• Demonstrated accurate kinetic and hydrodynamic solution comparisons.
• Analyzed altitude evolution of ion conic distributions in the cusp.
• Examined the interplay of convection and cusp dynamics on outflow.
• Presented the first 2-way coupled kinetic ion outflow-magnetosphere simulation.

Conclusions:

• The enhanced PWOM provides a comprehensive global model of ionospheric outflow.
• Kinetic ion effects significantly influence ion conic formation and magnetospheric coupling.
• The model enables efficient, high-fidelity studies of space plasma phenomena.