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FTA: A Feature Tracking Empirical Model of Auroral Precipitation
The Feature Tracking of Aurora (FTA) model was constructed using 1.5 years of Polar Ultraviolet Imager data and is based on tracking a cumulative energy grid in 96 magnetic local time (MLT) sectors. The equatorward boundary, poleward boundary, and 19 cumulative energy bins are tracked with the energy flux and the latitudinal position. With AE increasing, the equatorward boundary moves to lower latitudes everywhere, while the poleward boundary moves poleward in the 2300–0300 MLT region and equatorward in other MLT sectors. ...
Wu, Chen; Ridley, Aaron; DeJong, Anna; Paxton, Larry;
Published by: Space Weather Published on:
YEAR: 2021   DOI: 10.1029/2020SW002629
Auroral Precipitation Model; cumulative energy bins; data-model comparisons; M-I coupling; statistical analyses
Localized aurora beyond the auroral oval
Aurora is the result of the interaction between precipitating energetic electrons and protons with the upper atmosphere. Viewed from space, it generally occurs in continuous and diffuse ovals of light around the geomagnetic poles. Additionally, there are localized regions of aurora that are unrelated to the ovals and exhibit different morphological, spatial, and temporal properties. Some of these localized aurorae are detached from the oval poleward or equatorward of it. Others are located within the oval and are brighter ...
Published by: Reviews of Geophysics Published on: 03/2007
YEAR: 2007   DOI: 10.1029/2005RG000174