What is it about?
The vertical rise velocities of postmidnight field-aligned irregularities (FAIs) at low geomagnetic latitudes have been examined near the June solstice by using two-dimensional maps of F region FAI echoes observed with the Equatorial Atmosphere Radar in Indonesia for 3 years starting in May 2010. We found 15 freshly growing FAIs at postmidnight between May and August during the 3 years.
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Why is it important?
We found that the rise velocities of FAIs are smaller at postmidnight than at postsunset, and most postmidnight FAIs do not exceed an altitude of 450 km.
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This page is a summary of: Altitude development of postmidnight
F
region field‐aligned irregularities observed using Equatorial Atmosphere Radar in Indonesia, Geophysical Research Letters, February 2016, American Geophysical Union (AGU),
DOI: 10.1002/2015gl067432.
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