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Ensemble Modeling of Radiation Belt Electron Flux Decay Following a Geomagnetic Storm: Dependence on Key Input Parameters
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2022
Source: Space Weather, 20(8)
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Journal Title:Space Weather
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Description:We perform an ensemble of quasi-linear diffusion simulations of the radiation belt electron flux decay for ∼6 days at L = 3.5 during the recovery phase of the storm on 7 November 2015, where plasmaspheric hiss dominantly drives the electron flux decay process. Based on Van Allen Probes measurements, we use percentiles to sample distributions of the four key input parameters, which are the hiss wave amplitude Bw, hiss wave peak frequency fm, background magnetic field B0, and electron density Ne, with 11 points representing that range of each input, leading to 11 4 (∼14,600) ensemble members. By developing a Lookup Table method to rapidly calculate the time-dependent diffusion coefficients, the changing wave environment at every time
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Source:Space Weather, 20(8)
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ISSN:1542-7390;1542-7390;
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Rights Information:CC BY
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Compliance:Library
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