Abstract
Ocean loading tides introduce earth surface displacements at the centimetre level. We show that these effects can be recovered from GP5 data using long time-series from Precise Point Positioning solutions. The formal uncertainty of the observed ocean loading parameters can be as low as half a millimetre. Observations from 11 stations are used.
We investigate whether the GPS time-series show any impact of geocentre tides. We find that this is not the case and attribute the negative finding to the way the orbit data are prepared.
Large perturbations exist at sidereal periods. We suppose that they are related to once and twice per revolution orbit errors. Other perturbations might arise due to multipathing near a receiver antenna.
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References
Eanes, R. and S. Bettadpur (1998). The CSR 3.0 global ocean tide model Center for Space Research, Technical Memorandum, CSR-TM-96-05.
Farrell, WE . (1972). Deformation of the Earth by Surface Loads, Rev. Geophys. Space Phys10, pp.761–797
Groves, G.W. and R.W. Reynolds (1975). An orthogonalized convolution method of tide prediction. J. Geaphys. Res.$180, pp. 4131– 4138.
Le Provost, C., ML Genco, F. Lyard, P. Vincent, and P. Canceil (1994). Spectroscopy of the world ocean tides from a finite element hydrodynamical model, J. Geophys. Res.99, pp. 24,777– 24,798.
McCarthy, D.D. (1992). IERS Standards IERS Technical Note 13, Observatoire de Paris, France
McCarthy, D.D. (1996). IERS ConventionsIERS Technical Note 21, Observatoire de Paris, France
Ray, JR . (1999). Foreword In: IERS Analysis Campaign to Investigate Motions of the Geocentre. Ray, JR. (ed.), IERS Technical Note 25, Observatoire de Paris, France, pp. 1–2.
Ray, R.D. and B.V. Sanchez (1989). Radial Deformation of the Earth by Oceanic Tidal Loading, NASA Technical Memorandum 100743, NASA, Greenbelt, MD, USA
Rothacher, M. (1998). Recent Contributions of GPS to Earth Rotation and Reference Frames, Habilitation (2nd Ph.D.), University Press, University of Berne, Switzerland.
Scherneck, H-G. (1991). A Parameterized Solid Earth Tide Model and Ocean Tide Loading Effects for Global Geodetic Baseline Measurements, Geophys. J. Int., 106, pp 677– 694.
Scherneck, H-G., and FH Webb (1999). Ocean tide loading and diurnal tidal motion of the solid Earth centre. In: IERS Analysis Campaign to Investigate Motions of the GeocentreRay, JR. (ed.), IERS Technical Note 25, Observatoire de Paris, France, pp. 83–89.
Schwiderski, EW . (1980).On charting global ocean tides, Rev. Geophys. Space Phys.118, pp. 243– 268.
Seiler, U . (1991). Periodic changes of the angular momentum budget due to the tides of the world ocean, J. Geophga. Res.198, pp. 10,287– 10, 300.
Tamura, Y . (1987). A harmonic development of the tide-generating potential, Bull. D’Inform. Marées Terr, 99, pp. 6813– 6855.
Watkins, MM. and RJ Eanes (1997). Observations of tidally coherent diurnal and semidiurnal variations in the geocenter, Geophys. Res. Letters124, pp. 2231– 2234.
Webb, FH. and JF (1993). An Introduction to GIPSY/OASIS-II Precision Software for the Analysis of Data from the Global Positioning System, JPL Publ. No. D-I1088, Jet Propulsion Laboratory, Pasadena, Cal.
Wessel, P., and WHF Smith (1995). New version of the Generic Mapping Tools released, EOS Trans. AGU, 76, p.329.
Zumberge, JF., MB Heflin, DC Jefferson, MM Watkins, FH Webb (1997). Precise point positioning for the efficient and robust analysis of GPS data from large networks. J. Geophys. Res., 102 pp. 5005–5017.
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Scherneck, H.G., Johansson, J.M., Webb, F.H. (2000). Ocean loading tides in GPS and rapid variations of the frame origin. In: Schwarz, KP. (eds) Geodesy Beyond 2000. International Association of Geodesy Symposia, vol 121. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-59742-8_6
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DOI: https://doi.org/10.1007/978-3-642-59742-8_6
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