KFU. Card publication. Long-period nutational-precessional movements of the instantaneous pole of the Earth's rotation

KAZAN
FEDERAL UNIVERSITY

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LONG-PERIOD NUTATIONAL-PRECESSIONAL MOVEMENTS OF THE INSTANTANEOUS POLE OF THE EARTH'S ROTATION

Form of presentation

Articles in international journals and collections

Year of publication

2021

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Authors, employees of KFU

Belashov Vasiliy Yurevich, author

Other authors

Belashova Elena Semionovna, author

Kharshiladze Oleg Avtandilovich, author

Bibliographic description in the original language

Belashov V.Yu., Belashova E.S., Kharshiladze O.A. Long-period nutational-precessional movements of the instantaneous pole of the Earth's rotation // Acta Scientific. Applied Physics, 2021. - 11 pp. (in press)

Annotation

The influence of the rotational regime on real long-period nutational-precessional motions of the instantaneous pole of the Earth's rotation is considered. The solar-magnetospheric (through changes of the angular velocity of rotation) mechanism of action is discussed. The observed 12-month oscillations of the instantaneous axis of rotation are explained by the influence of the variable centrifugal force arising when the angular velocity changes and causing deformation of the figure that is not uniform in different longitudinal zones, without involving the baric-circulational processes as an intermediate link. Thus, both 14-month free (Chandler) and forced 12-month fluctuations of the pole location are considered from a single point of view – as a result of the variability of the rotational regime of the Earth. The analysis of heliogeophysical data for 1900-2017 confirms the validity of the proposed relationship mechanism.

Keywords

Earth rotation, nutation, precession, instantaneous pole of rotation, Earth figure deformation, pole position fluctuations, free oscillations, forced oscillations, solar-magnetospheric control

The name of the journal

Acta Scientific. Applied Physics

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=245310&p_lang=2

Resource files

File name	Size (MB)	Format
Belashov_ASAP__03.01.2021_.pdf	0,67	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Belashov Vasiliy Yurevich	ru_RU
dc.contributor.author	Belashova Elena Semionovna	ru_RU
dc.contributor.author	Kharshiladze Oleg Avtandilovich	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Belashov V.Yu., Belashova E.S., Kharshiladze O.A. Long-period nutational-precessional movements of the instantaneous pole of the Earth's rotation // Acta Scientific. Applied Physics, 2021. - 11 pp. (in press)	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=245310&p_lang=2	ru_RU
dc.description.abstract	Acta Scientific. Applied Physics	ru_RU
dc.description.abstract	The influence of the rotational regime on real long-period nutational-precessional motions of the instantaneous pole of the Earth's rotation is considered. The solar-magnetospheric (through changes of the angular velocity of rotation) mechanism of action is discussed. The observed 12-month oscillations of the instantaneous axis of rotation are explained by the influence of the variable centrifugal force arising when the angular velocity changes and causing deformation of the figure that is not uniform in different longitudinal zones, without involving the baric-circulational processes as an intermediate link. Thus, both 14-month free (Chandler) and forced 12-month fluctuations of the pole location are considered from a single point of view – as a result of the variability of the rotational regime of the Earth. The analysis of heliogeophysical data for 1900-2017 confirms the validity of the proposed relationship mechanism.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Earth rotation	ru_RU
dc.subject	nutation	ru_RU
dc.subject	precession	ru_RU
dc.subject	instantaneous pole of rotation	ru_RU
dc.subject	Earth figure deformation	ru_RU
dc.subject	pole position fluctuations	ru_RU
dc.subject	free oscillations	ru_RU
dc.subject	forced oscillations	ru_RU
dc.subject	solar-magnetospheric control	ru_RU
dc.title	Long-period nutational-precessional movements of the instantaneous pole of the Earth's rotation	ru_RU
dc.type	Articles in international journals and collections	ru_RU