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Determination of Ocean Tidal Loading Components at GPS Permanent Stations  

윤홍식 (성균관대학교 토목환경공학과)
이동하 (성균관대학교 토목환경공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.21, no.4, 2003 , pp. 317-322 More about this Journal
Abstract
This paper have calculated a relative heights of an each station using the data which were observed by GPS permanent stations(Chejudo, Homigoj, Jumunjin, Marado, Palmido, Ulengdo, Youndo) established in Korea. We performed spectrum analysis with a calculated relative heights by CLEAN algorithm. Through these process, we estimated vertical displacement of earth surface by semi-dinural ocean tidal loading components, and compared them with the results which were calculated by improving ocean tide model(NA099jb) for adjacent seas around Japan and Korea. As the result of this study, we determined the ocean tidal loading components with loading effects of $M_2$ and $N_2$, and we noted that the amplitude and the phase lags of ocean tidal loading components from observed GPS data were almost equal to values calculated from ocean tide models. However, the loading components about semi-diurnal tide $S_2$, $K_2$ couldn't estimate because of periods. Also, the diurnal ocean tide loading components were not considered, because the noise level have increased during the diurnal frequency.
Keywords
GPS; CLEAN algorithm; Ocean Tidal Loading Components; GPS;
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1 Vertical Ocean loading amplitude from VLBI measurements /
[ Sovers,O.J. ] / Geophysical Research Letters   DOI   ScienceOn
2 Spectral analysis with incomplete time series : an example from seismology. /
[ Stefan,B.;Bokelmann,H.R. ] / Computer & Geosciences
3 Determination of semi-diurnal ocean tide loading constituents using GPS in Alaska /
[ Khan,S.A.;Tscherning,C.C. ] / Geophys. R. Lett.   DOI   ScienceOn
4 Ocean loading corrections for continuous GPS: A case study at the Canadian coastal site Holberg. /
[ Dragert,F.;James,T.S.;Lambert,A. ] / Geophys. Res. Lett.   DOI   ScienceOn
5 Ocean loading observed by geodetic VLBI /
[ Haas,R.;Schuh,H.;Ducarme,B.(ed.) ] / Proc. 13th Ont. Symp.Earth tides Brussels 1996
6 Time series analysis with CLEAN. I. Derivation of a spectrum. /
[ Roberts,D.H.;Lehar,J.;Dreher,J.W. ] / Astronomical Journal
7 The M2 ocean tide loading wave in Alaska : Vertical and horizontal displacements, modelled and observed /
[ Khan,S.A.;Scherneck,H.G. ] / Journal of Geodesy. 20-12-2002.