A new parameter of geomagnetic storms for the severity of space weather

N. Balan, I. S. Batista, S. Tulasi Ram, P. K. Rajesh

Research output: Contribution to journalLetterpeer-review

12 Citations (Scopus)

Abstract

Using the continuous Dst data available since 1957 and H component data for the Carrington space weather event of 1859, the paper shows that the mean value of Dst during the main phase of geomagnetic storms, called mean DstMP, is a unique parameter that can indicate the severity of space weather. All storms having high mean DstMP (≤−250 nT), which corresponds to high amount of energy input in the magnetosphere–ionosphere system in short duration, are found associated with severe space weather events that caused all known electric power outages and telegraph system failures.

Original languageEnglish
Article number3
JournalGeoscience Letters
Volume3
Issue number1
DOIs
Publication statusPublished - 2016 Dec 1

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

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