Re-estimation of Earth spin rotational energy decrease due to tidal friction SCIE SCOPUS KCI

DC Field Value Language
dc.contributor.author Na, Sung-Ho -
dc.contributor.author Lee, Seok -
dc.date.accessioned 2020-04-20T04:54:45Z -
dc.date.available 2020-04-20T04:54:45Z -
dc.date.created 2020-01-28 -
dc.date.issued 2014-03 -
dc.identifier.issn 1226-4806 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/2858 -
dc.description.abstract The Earth undergoes tidal deformation due to the Moon and the Sun, and its spin angular velocity is being gradually reduced by the tidal friction, while the Earth-Moon distance is slowly increasing accordingly. The amount of this energy loss has been formerly estimated by simplified two-dimensional model of the Earth-Moon system. In this study, we repeated the same kind of estimation with the latest data for the lunar recession rate. For more accurate estimation, we further developed a three-dimensional model by taking into account the Earth's obliquity angle and lunar orbital inclination and eccentricity. The Earth spin rotational energy loss estimated from the three-dimensional model amounts to 3.54x10(12) Watt, slightly greater than that (3.28x10(12) Watt) from the two-dimensional model which tends to underestimate it due to oversimplification of the orbital geometry. About 97% of the energy loss is being transformed into heat of 3.42x10(12) Watt, which is about the total human expenditure of electric power. The quality factors of the Earth's body tide estimated from the energy loss, assuming that the body tidal dissipation is 5 to 10% of the total tidal dissipation, range from 90 to 190. -
dc.description.uri 1 -
dc.language English -
dc.publisher GEOLOGICAL SOCIETY KOREA -
dc.subject DISSIPATION -
dc.subject PARAMETERS -
dc.title Re-estimation of Earth spin rotational energy decrease due to tidal friction -
dc.type Article -
dc.citation.endPage 6 -
dc.citation.startPage 1 -
dc.citation.title GEOSCIENCES JOURNAL -
dc.citation.volume 18 -
dc.citation.number 1 -
dc.contributor.alternativeName 이석 -
dc.identifier.bibliographicCitation GEOSCIENCES JOURNAL, v.18, no.1, pp.1 - 6 -
dc.identifier.doi 10.1007/s12303-013-0069-0 -
dc.identifier.scopusid 2-s2.0-84891471865 -
dc.identifier.wosid 000331972600001 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus DISSIPATION -
dc.subject.keywordPlus PARAMETERS -
dc.subject.keywordAuthor Earth spin rotational energy -
dc.subject.keywordAuthor tidal dissipation -
dc.subject.keywordAuthor body tidal Q -
dc.relation.journalWebOfScienceCategory Geosciences, Multidisciplinary -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.description.journalRegisteredClass kci -
dc.relation.journalResearchArea Geology -
Appears in Collections:
Ocean Climate Solutions Research Division > Ocean Circulation & Climate Research Department > 1. Journal Articles
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