Estimation of the 13.63-day lunar tide effect on length of day

Estimation of the 13.63-day lunar tide effect on length of day

Using a simple nonlinear analysis method (E. M. Blanter et al., submitted manuscript, 2001), we are able to observe in the length of day the 18.6‐year beating of the two main fortnightly lunar tides and to measure the amplitude of the smallest one with a great accuracy. We can thus estimate the asso...

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Veröffentlicht in:Journal of Geophysical Research: Solid Earth 2002-05, Vol.107 (B5), p.ETG 4-1-ETG 4-5
Hauptverfasser: Bellanger, E., Blanter, E. M., Le Mouël, J.-L., Shnirman, M. G.
Format: Artikel
Sprache:eng
Schlagworte:
Astrometry and reference systems
Astronomy
Earth's tides
Earth, ocean, space
Exact sciences and technology
Fundamental astronomy
Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations
length of day
Love number
signal analysis
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Beschreibung
Zusammenfassung:Using a simple nonlinear analysis method (E. M. Blanter et al., submitted manuscript, 2001), we are able to observe in the length of day the 18.6‐year beating of the two main fortnightly lunar tides and to measure the amplitude of the smallest one with a great accuracy. We can thus estimate the associated zonal response coefficient κ for this period. We find κ = 0.311 ± 0.010.
ISSN:0148-0227
2156-2202
DOI:10.1029/2000JB000076