Title: Modeling Ring Current Proton Fluxes Using Artificial Neural Network and Van Allen Probe Measurements

Journal Article · · Space Weather (Online)
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [4]
  1. Department of Atmospheric and Oceanic Sciences University of California, Los Angeles Los Angeles CA USA
  2. Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA
  3. Fundamental Technologies LLC Lawrence KS USA
  4. Center for Solar Terrestrial Research Department of Physics New Jersey Institute of Technology Newark NJ USA
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Abstract Terrestrial ring current dynamics are a critical part of the near‐space environment, in that they directly drive geomagnetic field variations that control particle drifts, and define geomagnetic storms. The present study aims to specify a global and time‐varying distribution of ring current proton using geomagnetic indices and solar wind parameters with their history as input. We train an artificial neural network (ANN) model to reproduce proton fluxes measured by the Radiation Belt Storm Probes Ion Composition Experiment instrument onboard Van Allen Probes. By choosing optimal feature parameters and their history length, the model results show a high correlation and a small error between model specifications and satellite measurements. The modeled results well capture energy‐dependent proton dynamics in association with geomagnetic storms, including inward radial diffusion, acceleration and decay. Our ANN model produces proton fluxes with their corresponding 3D spatiotemporal variations, capturing the latitudinal distribution and local time asymmetry that are consistent with observations and that can further inform theory.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0010578
OSTI ID:
1974267
Journal Information:
Space Weather (Online), Journal Name: Space Weather (Online) Journal Issue: 5 Vol. 21; ISSN 1542-7390
Publisher:
American Geophysical Union (AGU)Copyright Statement
Country of Publication:
United States
Language:
English

References (48)

Effect of EMIC waves on relativistic and ultrarelativistic electron populations: Ground-based and Van Allen Probes observations: Usanova et al.: EMIC Waves and Relativistic Electrons journal March 2014
Magnetosonic wave excitation by ion ring distributions in the Earth's inner magnetosphere: Excitation of magnetosonic waves journal February 2014
Initial measurements of O-ion and He-ion decay rates observed from the Van Allen probes RBSPICE instrument journal November 2014
A unified approach to inner magnetospheric state prediction: INNER MAGNETOSPHERIC STATE PREDICTION journal March 2016
The inner magnetosphere ion composition and local time distribution over a solar cycle: Cluster Ion Composition journal March 2016
Formation of energetic electron butterfly distributions by magnetosonic waves via Landau resonance journal April 2016
Transitional behavior of different energy protons based on Van Allen Probes observations: Proton Transitional Behavior journal January 2017
Interactions between magnetosonic waves and ring current protons: Gyroaveraged test particle simulations journal September 2016
An empirical model of ion plasma in the inner magnetosphere derived from CRRES/MICS measurements: CRRES/MICS EMPIRICAL MODEL OF ION PLASMA journal December 2016
Erosion and refilling of the plasmasphere during a geomagnetic storm modeled by a neural network journal July 2017
Energetic particle loss through the magnetopause: A combined global MHD and test-particle study: MAGNETOPAUSE ENERGETIC PARTICLE LOSSES journal September 2017
Empirical Modeling of the Plasmasphere Dynamics Using Neural Networks: GLOBAL DYNAMIC PLASMASPHERE MODEL journal November 2017
The Characteristic Pitch Angle Distributions of 1 eV to 600 keV Protons Near the Equator Based On Van Allen Probes Observations: VAP Observations of H + PA Distributions journal September 2017
A neural network model of three-dimensional dynamic electron density in the inner magnetosphere: Neural Network Model of Plasma Density journal September 2017
Measures of Model Performance Based On the Log Accuracy Ratio journal January 2018
Inner magnetospheric heavy ion composition during high-speed stream-driven storms: RING CURRENT IONS DURING HSS STORMS journal July 2013
Charge exchange lifetimes for ring current ions journal August 1978
Science Objectives and Rationale for the Radiation Belt Storm Probes Mission journal September 2012
Radiation Belt Storm Probes Ion Composition Experiment (RBSPICE) journal April 2013
Helium, Oxygen, Proton, and Electron (HOPE) Mass Spectrometer for the Radiation Belt Storm Probes Mission journal March 2013
Effects of charge exchange involving H and H+ in the upper atmosphere journal September 1978
Modeling for precipitation loss of ring current protons by electromagnetic ion cyclotron waves journal January 2011
Inner magnetospheric modeling with the Rice Convection Model journal January 2003
The terrestrial ring current: Origin, formation, and decay journal November 1999
Empirical model of proton fluxes in the equatorial inner magnetosphere: Development journal November 2001
An examination of the process and magnitude of ionospheric plasma supply to the magnetosphere journal January 2005
High-resolution global storm index: Dst versus SYM-H journal January 2006
Empirical models of the low-energy plasma in the inner magnetosphere: EMPIRICAL PLASMA MODELS journal December 2005
Magnetically self-consistent ring current simulations during the 19 October 1998 storm journal November 2006
Observations of the warm plasma cloak and an explanation of its formation in the magnetosphere: WARM PLASMA CLOAK journal September 2008
THEMIS observations of penetration of the plasma sheet into the ring current region during a magnetic storm journal January 2008
A Global Ground-Based Magnetometer Initiative journal January 2009
Global simulation of EMIC wave excitation during the 21 April 2001 storm from coupled RCM-RAM-HOTRAY modeling: GLOBAL SIMULATION OF EMIC WAVES journal July 2010
Rapid decay of storm time ring current due to pitch angle scattering in curved field line: RAPID DECAY OF RING CURRENT journal March 2011
Inner magnetosphere plasma characteristics in response to interplanetary shock impacts: PLASMA PROPERTIES TRIGGERED BY IP SHOCKS journal November 2011
Evaluation of SuperMAG auroral electrojet indices as indicators of substorms and auroral power: SUPERMAG AURORAL ELECTROJET INDICES journal December 2011
The Composition of Plasma inside Geostationary Orbit Based on Van Allen Probes Observations journal August 2018
Energization of the Ring Current by Substorms journal October 2018
Specifying High‐Altitude Electrons Using Low‐Altitude LEO Systems: The SHELLS Model journal March 2020
Identification of Controlling Geomagnetic and Solar Wind Factors for Magnetospheric Chorus Intensity Using Feature Selection Techniques journal December 2021
NARX Neural Network Derivations of the Outer Boundary Radiation Belt Electron Flux journal May 2022
Relativistic Electron Model in the Outer Radiation Belt Using a Neural Network Approach journal December 2021
Modeling the Dynamic Variability of Sub‐Relativistic Outer Radiation Belt Electron Fluxes Using Machine Learning journal August 2022
Lifetime of ring current particles due to coulomb collisions in the plasmasphere journal January 1991
A bounce-averaged kinetic model of the ring current ion population journal December 1994
A general relation between the energy of trapped particles and the disturbance field near the Earth journal July 1966
Hydromagnetic theory of geomagnetic storms journal December 1959
Coulomb lifetime of the ring current ions with time varying plasmasphere journal April 1998

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