Why to detect EIT waves on STEREO ?CMEs and flares are the principal objects of automatic investigation and cataloguing. However, in the last decade or so, EUV solar imaging from space have revealed a rich diversity of solar disk events, such as dimmings, global waves, post-eruptive arcades, long duration flares and so on. A part of these phenomena that precede CME are called On-Disk-Eruptions (OnDsE).
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quiet sun conditions |
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+1÷2h
→ Quasi-circular EIT wave |
Halo CME |
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They strongly affects ionospheric and magnetospheric conditions on the Earth, e.g. communications. The earliest possible alert is required for real-time geoeffectivness computation.
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Some more EIT waves examples: |
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NW-SE elongated; |
Angularly-narrow interacting with Active Regions; |
Faint wave on Active Sun etc... |
NEMO |
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