On the Performance of a Real‐Time Electron Radiation Belt Specification Model

Abstract Maintaining accurate real‐time hindcast and forecast specification of the radiation environment is essential for operators to monitor and mitigate the effects of hazardous radiation on satellite components. The Radiation Belt Forecasting Model and Framework (RBFMF) provides real‐time foreca...

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Main Authors: Frances Staples, Adam Kellerman, Janet Green
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:Space Weather
Subjects:
Online Access:https://doi.org/10.1029/2024SW003950
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author Frances Staples
Adam Kellerman
Janet Green
author_facet Frances Staples
Adam Kellerman
Janet Green
author_sort Frances Staples
collection DOAJ
description Abstract Maintaining accurate real‐time hindcast and forecast specification of the radiation environment is essential for operators to monitor and mitigate the effects of hazardous radiation on satellite components. The Radiation Belt Forecasting Model and Framework (RBFMF) provides real‐time forecasts and hindcasts of the electron radiation belt environment, which are used as inputs for the Satellite Charging Assessment Tool. We evaluated the long‐term statistical error and bias of the RBFMF by comparing the 10‐hr hindcast of electron phase space densities (PSD) to a multi‐mission data set of PSD observations. We found that, between the years 2016–2018, the RBFMF reproduced the radiation belt environment to within a factor of 1.5. While the error and bias of assimilated observations were found to influence the error and bias of the hindcast, data assimilation resulted in more accurate specification of the radiation belt state than real‐time Van Allen Probe observations alone. Furthermore, when real‐time Van Allen Probe observations were no longer available, the hindcast errors increased by an order of magnitude. This highlights two needs; (a) the development of physics‐based modeling incorporated into this framework, and (b) the need for real‐time observations which span the entire outer radiation belt.
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spelling doaj-art-65eb29587c504c52a7ff2fda9e90fc482025-02-01T08:10:33ZengWileySpace Weather1542-73902024-12-012212n/an/a10.1029/2024SW003950On the Performance of a Real‐Time Electron Radiation Belt Specification ModelFrances Staples0Adam Kellerman1Janet Green2Department of Atmospheric & Oceanic Sciences University of California Los Angeles CA USADepartment of Atmospheric & Oceanic Sciences University of California Los Angeles CA USASpace Hazards Applications LLC Arapahoe St Golden CO USAAbstract Maintaining accurate real‐time hindcast and forecast specification of the radiation environment is essential for operators to monitor and mitigate the effects of hazardous radiation on satellite components. The Radiation Belt Forecasting Model and Framework (RBFMF) provides real‐time forecasts and hindcasts of the electron radiation belt environment, which are used as inputs for the Satellite Charging Assessment Tool. We evaluated the long‐term statistical error and bias of the RBFMF by comparing the 10‐hr hindcast of electron phase space densities (PSD) to a multi‐mission data set of PSD observations. We found that, between the years 2016–2018, the RBFMF reproduced the radiation belt environment to within a factor of 1.5. While the error and bias of assimilated observations were found to influence the error and bias of the hindcast, data assimilation resulted in more accurate specification of the radiation belt state than real‐time Van Allen Probe observations alone. Furthermore, when real‐time Van Allen Probe observations were no longer available, the hindcast errors increased by an order of magnitude. This highlights two needs; (a) the development of physics‐based modeling incorporated into this framework, and (b) the need for real‐time observations which span the entire outer radiation belt.https://doi.org/10.1029/2024SW003950radiation beltforecasthindcastdata assimilationdiffusion simulationvalidation
spellingShingle Frances Staples
Adam Kellerman
Janet Green
On the Performance of a Real‐Time Electron Radiation Belt Specification Model
Space Weather
radiation belt
forecast
hindcast
data assimilation
diffusion simulation
validation
title On the Performance of a Real‐Time Electron Radiation Belt Specification Model
title_full On the Performance of a Real‐Time Electron Radiation Belt Specification Model
title_fullStr On the Performance of a Real‐Time Electron Radiation Belt Specification Model
title_full_unstemmed On the Performance of a Real‐Time Electron Radiation Belt Specification Model
title_short On the Performance of a Real‐Time Electron Radiation Belt Specification Model
title_sort on the performance of a real time electron radiation belt specification model
topic radiation belt
forecast
hindcast
data assimilation
diffusion simulation
validation
url https://doi.org/10.1029/2024SW003950
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