A Comparative Study of the Turbulence Models Utilizing the Lagrangian Particle Transport Model in the Atmospheric Dispersion Simulation

2002 ◽  
Vol 2002.12 (0) ◽  
pp. 358-361
Author(s):  
Sang Baek KIM ◽  
Katuhito YAMAGUCHI ◽  
Satoshi SODA
Keyword(s):  
Comparative Study ◽  
Particle Transport ◽  
Transport Model ◽  
Atmospheric Dispersion ◽  
Turbulence Models ◽  
Lagrangian Particle ◽  
Lagrangian Particle Transport ◽  
Particle Transport Model

scholarly journals Forecasting Solar Energetic Particle Fluence with Multi-Spacecraft Observations

2017 ◽  
Vol 13 (S335) ◽  
pp. 298-300 ◽  
Author(s):  
T. Laitinen ◽  
S. Dalla ◽  
M. Battarbee ◽  
M. S. Marsh
Keyword(s):  
Particle Transport ◽  
Energetic Particle ◽  
Transport Model ◽  
Solar Energetic Particle ◽  
Time Estimates ◽  
Single Location ◽  
Model Predictions ◽  
Solar Eruptions ◽  
Order Of Magnitude ◽  
Particle Transport Model

AbstractForecasting Solar Energetic Particle (SEP) fluence, as integrated over an SEP event, is an important element when estimating the effect of solar eruptions on humans and technology in space. Current real-time estimates are based on SEP measurements at a single location in space. However, the interplanetary magnetic field corotates with the Sun approximately 13° each day with respect to Earth, thus in 4 days a near-Earth spacecraft will have changed their connection about 60° from the original SEP source. We estimate the effect of the corotation on particle fluence using a simple particle transport model, and show that ignoring corotation can cause up to an order of magnitude error in fluence estimations, depending on the interplanetary particle transport conditions. We compare the model predictions with STEREO observations of SEP events.

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