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Using 1024 nights of data from 2002–2005 taken by the Cornell Narrow FieldImager (CNFI), we examine equatorial plasma bubble (EPB) zonal driftvelocity characteristics. CNFI is located at the Maui Space SurveillanceSite on the Haleakala Volcano (geographic: 20.71° N, 203.83° E;geomagnetic: 21.03° N, 271.84° E) on the island of Maui, Hawaii. Theimager is set up to view in a magnetic field-aligned geometry in order tomaximize its resolution. We calculate the zonal drift velocities using twomethods: a correlation routine and an EPB west-wall intensity gradienttracking routine. These two methods yield sizeable differences in theevenings, suggesting strong pre-local midnight EPB development. An analysisof the drift velocities is also performed based on the three influencingfactors of season, geomagnetic activity, and solar activity. In general, ourdata match published trends and drift characteristics from past studies.However, we find that the drift magnitudes are much lower than results fromother imagers at similar latitude sectors but at different longitudesectors, suggesting that zonal drift velocities have a longitudinaldependence

Analysis of equatorial plasma bubble zonal drift velocities in the Pacific sector by imaging techniques