About: Solar excitation of bicentennial Earth rotation oscillations

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About: Solar excitation of bicentennial Earth rotation oscillations Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The bicentennial variations of the Earth rotation consist of several oscillations with most known periods 178.7a (Jose cycle), 210a and 230a (de Vries cycle); they are driven by the solar cycles which affect climatic variations, followed by global environmental changes. These periods are close to the higher harmonics of millennial Hallstatt cycle (2300a), so the proper separation between the individual bicentennial cycles needs time series longer than 2300a. The bicentennial variations of the Universal Time (UT1) in relation to the Terrestrial Time (TT) are investigated using reconstructed time series of the Total Solar Irradiance (TSI) for the last 9300a. A linear regression model of TSI influence on the UT1 and the Mean Sea Level (MSL) bicentennial variations are created. The parameters and time series of the bicentennial UT1-TT oscillations for the last 9300a are determined. The bicentennial variations of the Earth rotation consist of several oscillations with most known periods 178.7a (Jose cycle), 210a and 230a (de Vries cycle); they are driven by the solar cycles which affect climatic variations, followed by global environmental changes. These periods are close to the higher harmonics of millennial Hallstatt cycle (2300a), so the proper separation between the individual bicentennial cycles needs time series longer than 2300a. The bicentennial variations of the Universal Time (UT1) in relation to the Terrestrial Time (TT) are investigated using reconstructed time series of the Total Solar Irradiance (TSI) for the last 9300a. A linear regression model of TSI influence on the UT1 and the Mean Sea Level (MSL) bicentennial variations are created. The parameters and time series of the bicentennial UT1-TT oscillations for the last 9300a are determined. (en)
Title	Solar excitation of bicentennial Earth rotation oscillations Solar excitation of bicentennial Earth rotation oscillations (en)
skos:prefLabel	Solar excitation of bicentennial Earth rotation oscillations Solar excitation of bicentennial Earth rotation oscillations (en)
skos:notation	RIV/67985815:_____/12:00382862!RIV13-GA0-67985815
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA205/08/0908)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Vondrák, Jan Ron, Cyril
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Astronomický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	169088
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/12:00382862
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Earth rotation; solar activity (en)
http://linked.open.../riv/klicoveSlovo	Earth rotation solar activity
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[361AA0051BF9]
http://linked.open...i/riv/nazevZdroje	Acta geodynamica et geomaterialia
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Analysis of the geophysical excitations in the Earth orientation parameters
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	9
http://linked.open...iv/tvurceVysledku	Chapanov, Y. Ron, Cyril Vondrák, Jan
http://linked.open...ain/vavai/riv/wos	000311462200002
issn	1214-9705
number of pages	10 (xsd:int)

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