Tonga Volcanic Effects Data Online

Neutral winds and plasma velocities online, FUV ion density profiles now processing.

The January 2022 Tonga volcanic eruption produced some clear and remarkable effects in space that ICON saw directly. The new plasma drift data (Level 2.7 IVM v6)  and thermospheric wind and temperature data (Level 2.2, 2.3 MIGHTI v5) are on the ICON public FTP site for this event. The EUV instrument was not on, but FUV was, and we are currently completing the processing of FUV L1 data (which will be at v05 when they are published) to use in retrieval of both thermospheric composition and nighttime plasma density profiles for this event.