Overview |
Topical |
Popular Science |
Research |
Observatory |
Data |
SEARCH |
|
IRF Kiruna |
IRF Umeå |
IRF Uppsala |
IRF Lund |
MAP ![]() |
|
Primary (DTU)K-index calculation algorithms: IH = Ingemar Häggström method FMI = Finnish Meteorological Institute method |
Secondary (DMI)![]() |
||||||||||||||
![]() |
|||||||||||||||
|
|||||||||||||||
|