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

Autor: Victor Getmanov, Roman Sidorov, Alexei Gvishiani
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Applied Sciences, Vol 12, Iss 1, p 413 (2022)
Druh dokumentu: article
ISSN: 12010413
2076-3417
DOI: 10.3390/app12010413
Popis: 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.
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