DOI

The extreme acceleration of the Earth rotation observed in the summer of 2020 is considered. It is concluded that this phenomenon is a consequence of two factors: the long-term acceleration of the Earth rotation, which has been observed since the 1970s, and the extremely strong meteorological excitation of the LOD, which took place in the summer of 2020. The coincidence of the anomaly of the AAM and the geomagnetic Dst index, as well as the correlation between the LOD on the one hand and the solar wind speed and the Gaussian coefficients of the expansion of the Earth's magnetic field, on the other, are noted. The problem of negative leap second is considered. Preliminary estimates have been made of introduction of a negative leap second, if the current trends in the behavior of UT1-UTC continue. The conclusion is made about the low probability of such an event.

Язык оригиналаанглийский
Номер статьи012039
ЖурналJournal of Physics: Conference Series
Том2103
Номер выпуска1
DOI
СостояниеОпубликовано - 14 дек 2021
СобытиеInternational conference PhysicA.SPb/2021 - Санкт-Петербург, Российская Федерация
Продолжительность: 18 окт 202122 окт 2021
http://physica.spb.ru/

    Предметные области Scopus

  • Физика и астрономия (все)

ID: 94889551