Solar activity and geospace environment previous to the Tenerife blackout
Abstract
The 29th September 2019 the Canary Island of Tenerife was hit by a major blackout. Not too high but continuous long duration local geomagnetic activity was recorded before the time of the blackout. GOES data show enhanced and injected particle fluxes indicating that the magnetosphere was disturbed by substorm activity. Interplanetary data evidence that this activity was triggered by a fast stream from a coronal hole. Nevertheless, solar wind measurements do not fit with typical ones during this type of streams. The combined analysis of coronagraph and AIA images reveals an ejection which was the clue to understand the interplanetary measurements and the hazardous Space Weather environment.
- Publication:
-
XIV.0 Scientific Meeting (virtual) of the Spanish Astronomical Society
- Pub Date:
- July 2020
- Bibcode:
- 2020sea..confE.194C