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Earth, Planets and Space
Fig. 7 | Earth, Planets and Space

Fig. 7

From: On new two-dimensional UHF radar observations of equatorial spread F at the Jicamarca Radio Observatory

Fig. 7

Same as Fig. 4. But now the images reveal the appearance of a second radar plume to the west of Jicamarca. The first image (leftmost) in the lower panels shows the first radar plume described in Fig. 5 located to the east of Jicamarca, and the first echoes of the second radar plume to the west. As the two plumes drift eastward, the second plume enters the field-of-view of AMISR-14 and the echoes can be seen weakening and losing altitude. Therefore, the images show the spatio-temporal evolution of a decaying topside structure. The RTI map of the vertical beam shows the signatures of small radar plume

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