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Planets Space, 59, 307–311. Sato, T., Tamura, Y., Matsumoto, K., Imanishi, Y. and McQueen, H., 2004. Parameters of the fluid core resonance inferred from superconducting gravimeter data, J. Geodyn., 38, 375-389. Sato, Tadahiro, Jun’ichi Okuno, Jacques Hinderer, Daniel S. MacMillan, Hans-Peter Plag, Olivier Francis, Reinhard Falk, and Yoichi Fukuda, 2006. A geophysical interpretation of the secular displacement and gravity rates observed at Ny-Ålesund, Svalbard in the Arctic - Effects of post-glacial rebound and present-day ice melting -, G. J. Int., 165., 729-743, doi: 10.IIII/j.1365-246x.2006.02992.x. T. Sato, S. Miura, Y. Ohta, H. Fujimoto, W. Sun, C.F. Larsen, M. Heavner, A.M. Kaufman, J.T. Freymueller, 2008. Earth tides observed by gravity and GPS in southeastern Alaska, J. Geodyn., 46, 78–89. Schenewerk, M. S., J. Marshall and W. Dillingar (2001), Vertical Ocean-loading Deformations Derived from a Global GPS Network, J. Geod. Soc. Japan, Vol.47, No.1, 237-242. Schwiderski, E. W. (1980), On charting global ocean tides, Rev. Geophys. Space Phys., 18, 243-268. Takasu, T., and Kasai, S., 2005. Development of precise orbit/clock determination software for GPS/GNSS, Proce. the 49th Space Sciences and Technology Conference, Hiroshima, Japan (in Japanese), 1223-1227. Takasu, T., 2006. High-rate Precise Point Positioning: Detection of crustal deformation by using 1-Hz GPS data, GPS/GNSS symposium 2006, Tokyo, 52-59. Tamura Y., Sato, T., Ooe, M. and Ishiguro, M., 1991. A procedure for tidal analysis with a Bayesian information criterion, Geophys. J. Int., 104, 507-516. Thomas, I. D., King, M. A., Clarke, P. J., 2007. A comparison of GPS, VLBI and model estimates of ocean tide loading displacements, J. Geodesy, 81(5), 359-268. Wahr, J. M., 1981. Body tides of an elliptical, rotating, elastic and oceanless Earth, Geophys. R. Astron. Soc., 64, 677-703. Wang, R., 1991. Tidal deformations of a rotating, spherically symmetric, visco-elastic and laterally heterogeneous Earth, Ph.D. Thesis, Univ. of Kiel, Kiel, Germany. Widmer-Schnidrig, R., 2003. What can superconducting gravimeters contribute to normal mode seismology, Bull. Seism. Soc. Am., 93(3), 1370–1380. Zumberge, J. F., Heflin, M. B., Jefferson, D. C., Watkins, M. M., and Webb, F. H., 1997. Precise point positioning for the efficient and robust analysis of GPS data from large networks, J. Geophys. Res., 102 (B3), 5005-5017. Zürn, W., Beaumont, C. and Slichter, L. B., 1976. Gravity tides and ocean loading in southern Alaska, J. Geophys. Res., Vol. 81, No. 26, 4923-4932. 11762
Table 1. Amplitude differences between the observed tidal displacements from GPS and the predictions for the four constituents of O 1 , K 1 , M 2 , and S 2 . In this table, the predicted tides were computed with a combination of the Green’s function for the elastic PREM given by Dehant, Defraigne and Wahr (1999), NAO.99b global tide model and the Model B regional tide model (see subsection 4). Results for three GPS sites of AB48, AB50 and AB51 are shown. Unit of the amplitude difference: cm. VSM: Vector sum of the NS, EW and UD components. Site Wave Amplitude difference Observation error NS EW UD VSM NS EW UD VSM AB48 O 1 0.38 0.12 0.49 0.50 0.03 0.03 0.04 0.06 K 1 0.50 0.89 1.43 1.57 0.03 0.03 0.05 0.06 M 2 0.02 0.08 0.59 0.08 0.03 0.03 0.06 0.07 S 2 0.38 0.24 0.82 0.43 0.03 0.03 0.05 0.07 AB50 O 1 0.10 0.14 0.24 0.27 0.02 0.10 0.03 0.11 K 1 0.25 1.01 0.78 0.89 0.02 0.10 0.03 0.10 M 2 0.11 0.10 0.23 0.08 0.02 0.03 0.04 0.05 S 2 0.77 0.40 0.58 0.38 0.02 0.03 0.04 0.05 AB51 O 1 0.02 0.10 0.31 0.32 0.01 0.01 0.03 0.03 K 1 0.23 0.34 0.25 0.29 0.02 0.02 0.03 0.04 M 2 0.08 0.10 0.37 0.31 0.02 0.02 0.03 0.04 S 2 0.27 0.25 0.54 0.33 0.02 0.02 0.03 0.04 11763
Page 1: MAREES TERRESTRES BULLETIN D'INFORM
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Page 8 and 9: 1994), and TPXO.6 (Egbert et al., 1
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Page 12 and 13: From Fig. 2, we also see that, the
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Page 16 and 17: References Bos, M. S., Baker, T. F.
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Page 24 and 25: the dense seismic observation netwo
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Page 28 and 29: is done with an optical lever using
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Page 32 and 33: Figure 11. Strain seismograms of th
Page 34 and 35: Higashi, T., 1996, A study on chara
Page 38 and 39: 2. Fundamentals and techniques At t
Page 40 and 41: 100 low frequencies earth tide freq
Page 42 and 43: Tab. 4: Averages of noise levels at
Page 44 and 45: References Asch, G., Elstner, C., J
Page 46 and 47: The 1 / s part is also worth mentio
Page 48 and 49: As it was mentioned before the resu
Page 50 and 51: Fig. 9. Morlet Wavelet Spectrum, su
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Page 54 and 55: 2. Objectives of Aswan Tidal Gravit
Page 56 and 57: 5. Recording of Data The data logge
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Page 60 and 61: Figure 6: Residuals of gravity tide
Page 64 and 65: time. In addition, models for gravi
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during the years 2003 and 2004. It
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Figure 7: Variation of phase shift,
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Figure 8: Induced gravity load and
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The instrumentation of the tidal st
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4. Tidal analysis The tidal analysi
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References Banka, D., Crossley, D.
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1. Introduction The estimation of a
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Figure 1 Air density distributions
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temperature effect is considered, t
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Figure 4 Attraction effect from the
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a ) up to 0.5° , b) 0.5°- 1.5° ,
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Figure 7 Atmospheric reductions for
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Figure 9 Amplitude spectra of diffe
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Figure 10 SG observation and gravit
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eduction in the long-period tides r
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oceans. The effect has a peak-to-pe
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Figure 1. Local earthquakes recorde
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4. Recording of Data The recorded d
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Table 1: Adjusted tidal parameters
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Acknowledgements: The authors are i
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