Using the aa Index Over the Last 14 Solar Cycles to Characterize Extreme Geomagnetic Activity

Abstract Geomagnetic indices are routinely used to characterize space weather event intensity. The DST index is well resolved but is only available over five solar cycles. The aa index extends over 14 cycles but is highly discretized with poorly resolved extremes. We parameterize extreme aa activity...

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Үндсэн зохиолчид:	S. C. Chapman, R. B. Horne, N. W. Watkins
Формат:	Artigo
Хэл сонгох:	Inglês
Хэвлэсэн:	Wiley 2020-02-01
Цуврал:	Geophysical Research Letters
Нөхцлүүд:	space weather aa index Carrington event geomagnetic storm
Онлайн хандалт:	https://doi.org/10.1029/2019GL086524
Шошгууд:	Шошго нэмэх Шошго байхгүй, Энэхүү баримтыг шошголох эхний хүн болох!