Study of the Long-Lasting Daytime Field-Aligned Irregularities in the Low-Latitude F-Region on 13 June 2022
The unusual daytime F-region Field-Aligned Irregularities (FAIs) were observed by the HCOPAR and the satellites at low latitudes Dishwasher Cup Rack on 13 June 2022.These irregularities survived from night-time to the following afternoon at 15:00 LT.During daytime, they appeared as fossil structures with low Doppler velocities and narrow spectral w