edu.ucar.opensky::articles:27375 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T18:11:20.557700 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7n87g1p https://doi.org/10.5281/zenodo.11644307 https Related ComputationalNotebook #1 Radiation Belt Phase Space Density: Calculation Analysis and Model Dependence (Paper Data and Code) https://doi.org/10.48322/zrvq-vt55 https Related Dataset #1 Van Allen Probe A Fluxgate Magnetometer 4 second resolution data in GSM coordinates https://doi.org/10.5281/ZENODO.10728854 https Related Software #1 drsteve/LANLGeoMag: Release version 2.2.0-alpha https://doi.org/10.5281/zenodo.6867768 https Related Software #2 PRBEM/IRBEM: v5.0.0 Radiation belt phase space density: Calculation analysis and model dependence 2024-07-04T00:00:00Z publication https://n2t.org/ark:/85065/d7n87g1p https://doi.org/10.3389/fspas.2024.1423545 da Silva, D. E. author Elkington, S. R. author Li, X. author Hudson, Mary K. author Boyd, A. J. author Jaynes, A. N. author Wiltberger, Michael author UCAR/NCAR - Library publisher The reprocessing of radiation belt electron flux measurements into phase space density (PSD) as a function of the adiabatic invariants is a widely-used method to address major questions regarding electron energization and loss in the outer radiation belt. In this reprocessing, flux measurements j (alpha, E) at local pitch angles alpha, energies E, and optionally magnetometer measurements B, are combined with a global magnetic field model to express the phase space density f (L*) in terms of the third invariant Phi proportional to 1/L* at fixed first and second invariants M and K. While the general framework of the calculation is agreed upon, implementation details vary amongst the literature, and the issue of magnetic field model dependence is rarely addressed. This work reviews the steps of the calculation with lists of commonly used implementation options. For the first time, analysis is presented to display the effect of doing the calculation with different implementation options and with different backing models (including both empirical and MHD-driven models). The results are summarized to inform evaluation of existing results and future efforts calculating and analyzing radiation belt electron phase space density. Three events are analyzed, and while differences are found, the primary structural interpretations of the phase space density analysis exhibit model independence. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation