Other
Scientific paper
Oct 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999jgeod..73..466l&link_type=abstract
J. Geod., Vol. 73, No. 9, p. 466 - 477
Other
2
Earth Rotation: Variations
Scientific paper
Using the ΔT (integrated variation of the Earth's rotation measured in terrestrial time) series (1891.5 - 1955.5) derived from lunar occultation observations and the UT1 - UTC (universal time - coordinated universal time) series (1955.5 - 1997.5) of the Bureau International de l'heure/International Earth Rotation Service, a new ΔLOD (variation of the length of day) series in monthly intervals from 1892.0 to 1997.0 is calculated. Using digital filtering, the interannual and decadal components of the ΔLOD series are separated and then compared with those inferred from other geophysical quantities. It is shown that, on the interannual time scale, atmospheric processes can play an important role in exciting astronomical ΔLOD. However, the main oscillation with a mean period of about 5.8 years and peak-to-peak amplitude of about 0.3 ms in the residuals of ΔLOD(Astr) - ΔLOD(Wind) for 1968.0 - 1997.0 suggests that about half of the amplitude in astronomical ΔLOD must be excited by other geophysical processes, while on the decadal time scale the atmospheric excitation is too small.
Greiner-Mai H.
Liao De-Chun
No associations
LandOfFree
A new ΔLOD series in monthly intervals (1892.0 - 1997.0) and its comparison with other geophysical results. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A new ΔLOD series in monthly intervals (1892.0 - 1997.0) and its comparison with other geophysical results., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new ΔLOD series in monthly intervals (1892.0 - 1997.0) and its comparison with other geophysical results. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1086843