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In this study, the Ocean Tide Loading (OTL) constituents were detected by the\udPrecise Point Positioning (PPP) technique using GPS. Then, the GPS estimates of\udOTL constituents were compared with the predictions of the ocean tide models. We\udpicked three permanent GPS stations as test sites and they are ICNW, SEOS, and\udCJUN. To detect the OTL constituents using GPS, we created vertical coordinate\udtime series at 10-minute intervals using the PPP approach implemented in the GIPSY\udsoftware. Through the tidal harmonic analysis of this height time series, the four\udmajor constituents (M2, S2, K1, O1) were determined. The amplitude obtained from\udthe GPS height time series of the OTL constituents showed best match with the\udmodel predictions at CJUN, while the phase showed closest match at ICNW. The\udamplitude accuracy of the M2, which is the dominant factor out of the 11 major\udconstituents, was 24.8% on average

Detection of Ocean Tide Loading Constituents Based on Precise Point Positioning by GPS