Signature of geomagnetic superstorm in Earth's rotation speed

Результат исследований: Научные публикации в периодических изданияхстатья в журнале по материалам конференциирецензирование


A connection between solar activity and decadal Length of day variations is investigated. Statistical comparison of Length of day with various geomagnetic and Solar activity indices has been done for the last 140 years. A jump in Length of day (LOD) is found at the moment of the geomagnetic storm, the largest one for the last few decades, that happened in late October 2003, the so called Halloween storm. This change in rotational velocity of the Earth can not be explained by any known atmospheric or oceanic influences. Moreover, such jump in LOD is an unique one for the few recent years. It is supposed that this jump can be caused by transfer of angular momentum between Solar wind and the solid Earth. A possible mechanism of such a transfer is proposed.

Язык оригиналаанглийский
Номер статьи012020
ЖурналJournal of Physics: Conference Series
Номер выпуска1
СостояниеОпубликовано - 17 дек 2020
СобытиеInternational Conference PhysicA.SPb 2020 - ФТИ им. А.Ф. Иоффе, Санкт-Петербург, Российская Федерация
Продолжительность: 19 окт 202023 окт 2020

Предметные области Scopus

  • Физика и астрономия (все)


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