Fig. 5
From: High Frequency Analyzer (HFA) of Plasma Wave Experiment (PWE) onboard the Arase spacecraft

Example of the high-time resolution spectrogram obtained around the plasmapause in PP-1 mode
From: High Frequency Analyzer (HFA) of Plasma Wave Experiment (PWE) onboard the Arase spacecraft
Example of the high-time resolution spectrogram obtained around the plasmapause in PP-1 mode