Updating of the IRI-1990 with respect to substorms

P. V. Kishcha*, V. M. Shashunkina, E. E. Goncharova

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The method of updating the IRI-1990 model for the effects of large scale travelling ionospheric disturbances (LSTIDs) of the F-region have been established as a result of the statistical analysis of VI sounding data of European- Asian sector for 380 substorms. The effect of a LSTID occurring during a substorm is modelled as an additive correction to the quiet IRI foF2 and hmF2 values which depends on the time since the onset of the substorm and on the maximum AE-index value reached in it. In case of a sequence of substorms the additive corrections ΔfoF2 and ΔhmF2 are taking into account. The method for night-time ionosphere is described in detail, the listing of the FORTRAN-77 computer program is available on the floppy disk. The method is workable as correction to any ionospheric model.

Original languageEnglish
Pages (from-to)145-148
Number of pages4
JournalAdvances in Space Research
Issue number12
StatePublished - Dec 1994
Externally publishedYes


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