# Sudden ionispheric disturbances using vlf

**URL:** <https://forum.astro-colibri.science/t/sudden-ionispheric-disturbances-using-vlf/504>\
**Category:** General\
**Created:** [March 8, 2026, 3:34pm UTC](https://forum.astro-colibri.science/t/sudden-ionispheric-disturbances-using-vlf/504 "2026-03-08T15:34:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lawrencegertig2017](https://avatars.discourse-cdn.com/v4/letter/l/c57346/32.png) [@lawrencegertig2017](https://forum.astro-colibri.science/u/lawrencegertig2017)\
**Post date:** [March 8, 2026, 3:34pm UTC](https://forum.astro-colibri.science/t/sudden-ionispheric-disturbances-using-vlf/504/1 "2026-03-08T15:34:42Z")

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Hi. I wonder if it might be worth considering including sudden ionispheric distubances using very low frequencies (VLF) as pat of the overall multimessenger group. It doesn’t need to be a primary source of study, but as a side bar to primary events. If we observe SIDs then we must assume there has been an event tgat has taken place

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**Author:** ![Fabian.Schussler](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.astro-colibri.science/fabian.schussler/32/25_2.png) [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\
**Post date:** [March 8, 2026, 6:51pm UTC](https://forum.astro-colibri.science/t/sudden-ionispheric-disturbances-using-vlf/504/2 "2026-03-08T18:51:02Z")

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Hi,

thanks for idea!  
Two questions come to my mind:

- What would people do with this information? Why is it useful? I mean, is this information actionable in some way?
- Where would we find this information?

Thanks again!  
Fabian