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Morphology of the postsunset vortex in the equatorial ionospheric plasma drift
(American Geophysical Union, 2014-12-09)
The postsunset vortex in the equatorial ionosphere exhibits clockwise plasma motions after sunset in longitude (time) and altitude coordinates when the equatorial ionosphere is viewed looking northward. We describe the ...
Postsunset vortex in equatorial F-region plasma drifts and implications for bottomside spread-F
(American Geophysical Union, 1999-12-01)
Recent high‐resolution incoherent scatter drift measurements conducted at Jicamarca during solar minimum conditions indicate that a vortical plasma flow pattern accompanies the well known prereversal enhancement events ...
Equatorial spread-F initiation: Post-sunset vortex, thermospheric winds, gravity waves
(Elsevier, 2007-12)
We present experimental evidence and modeling results which indicate that eastward thermospheric wind is the primary controlling factor of equatorial spread-F initiation in the post-sunset ionosphere. Eastward wind-driven ...
Climatology of postsunset equatorial spread F over Jicamarca
(American Geophysical Union, 2009-07)
We use radar observations from 1996 to 2006 to study the climatology of postsunset equatorial 3-m spread F irregularities over Jicamarca during all seasons. We show that the spread F onset times do not change with solar ...