Disturbance storm time index
From Wikipedia, the free encyclopedia
(Redirected from Dst index)
The disturbance storm time (Dst, Kyoto Dst) index is a measure in the context of space weather. It gives information about the strength of the ring current around earth caused by solar protons and electrons.
The ring current around earth produces a magnetic field that is directly opposite earth's magnetic field, i.e. if the difference between solar electrons and protons gets higher, then earth's magnetic field becomes weaker.
A negative Dst value means that earth's magnetic field is weakened. This is particularly the case during solar storms.
[edit] See also
[edit] External links
- Dst at NOAA/NGDC
- Dst as part of SWENET Latest Alerts (on ESA's Space Weather Portal)
 |
This space- or spaceflight-related article is a stub. You can help Wikipedia by expanding it. |
