OVATION-AACGM and OVATION-Dipole Modeled Auroral Distribution Data with Analysis Code

This dataset contains modeled auroral intensity distributions and comprehensive validation materials for comparing OVATION-AACGM and OVATION-Dipole (original OVATION Prime 2010) models. The OVATION-AACGM model enhances the physical interpretability of mid-latitude aurora visibility by integrating the AACGM v2 coordinate system, which better represents the actual geomagnetic field topology in mid-latitude East Asia.Data File DescriptionsAACGMDistance2023_2025.mat - Time series of minimum distances from OVATION-AACGM modeled auroral boundaries to Mohe station (2023-2025).AACGMDistance2025_2026.mat - Time series of minimum distances from OVATION-AACGM modeled auroral boundaries to Mohe station (March 2025 - January 2026).Coordinate_Comparison_Results.mat - Statistical comparison results between AACGM and Dipole coordinate systems, including matched dates, distances, and observed aurora visibility flags.DipoleDistance2023_2025.mat - Time series of minimum distances from OVATION-Dipole modeled auroral boundaries to Mohe station (2023-2025).DipoleDistance2025_2026.mat - Time series of minimum distances from OVATION-Dipole modeled auroral boundaries to Mohe station (March 2025 - January 2026).dmspf18_ssusi_edr-aurora_2025001T102422-2025001T120613-REV078438_vA8.2.0r000.nc - DMSP F18 satellite SSUSI instrument EDR-Aurora data file for orbit 078438 on January 1, 2025, containing auroral boundary observations in NetCDF format.MoheObserve.xlsx - Ground-based aurora observation records dates from Mohe station for validation of forecast model performance (March 2025 - January 2026).MoheWeather.xlsx - Weather observation records from Mohe station documenting cloudy and rainy days used to filter analysis periods and exclude unfavorable observing conditions.Analysis Code (MATLAB)Compare AACGM Dipole PerformanceFigure 1: DMSP/SSUSI auroral boundary distance calculation exampleFigure 2: F1 score comparison between AACGM and DipoleFigure 3: Aurora viewing geometry schematicFigure 4: OVATION Prime versus DMSP distance comparisonFigure 5: Bias distribution histogramsFigure 6: Distance-based aurora visibility probabilityFigure 7: Confusion matrix comparisonFigure 8: Forecast performance evaluationFigure 9: Aurora event example (2026-01-20 16:45 UTC)