A Method for Recognition of Sudden Commencements of Geomagnetic Storms Using Digital Differentiating Filters

This article describes a method for recognizing sudden commencement events using digital differentiating filters. This method is applied to INTERMAGNET observatory data. Maximum amplitude derivatives for the magnetic components (X, Y, Z) and the total intensity (F) of the geomagnetic field are intro...

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Bibliographic Details
Published inApplied sciences Vol. 12; no. 1; p. 413
Main Authors Getmanov, Victor, Sidorov, Roman, Gvishiani, Alexei
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.01.2022
Subjects
Approximation
Decision making
decision-making rule
digital differentiating filter
Estimates
Filters
geomagnetic data
Geomagnetic field
geomagnetic storm
Geomagnetism
INTERMAGNET observatory
Magnetic storms
Noise
Observatories
Optimization
Recognition
sudden commencement
Time series
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Summary:This article describes a method for recognizing sudden commencement events using digital differentiating filters. This method is applied to INTERMAGNET observatory data. Maximum amplitude derivatives for the magnetic components (X, Y, Z) and the total intensity (F) of the geomagnetic field are introduced, and the decision-making rule is formulated. The authors developed a procedure for selecting optimal digital differentiating filters. Estimates of probabilities of correct and false recognition of sudden commencements were obtained. The calculations of the probabilistic characteristics have confirmed the effectiveness of the method.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12010413