Using a New Type of GPS Buoy for Determining the Mean Sea Level

Po-Hsien Hsu and Ching-Liang Tseng

Abstract:	The purposes of this study are to design a suitable GPS buoy to determining a mean sea level directly, as well as to set up a feasible method of measuring the sea level. Usually, the mean sea level is determined by tidal gauge or a long term measurement. However, the record of tidal gauge located on the shoreline near the harbor is belonged o local datum and referred to local vertical reference system. It will be interrupted by local crustal deformation. From global point of view, the record should be involved with the ITRF ellipsoid and referred to global vertical reference system [7]. The direct method of measurement is to set up GPS tracking station near the tidal gauge, the o-called continuously operating GPS station and connect o the tidal gauge by leveling measurement, then, the local ea level may be transformed to the global absolute sea level. The problem is that if the tidal gauge and the GPS
Published in:	Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012) September 17 - 21, 2012 Nashville Convention Center, Nashville, Tennessee Nashville, TN
Pages:	1173 - 1178
Cite this article:	Hsu, Po-Hsien, Tseng, Ching-Liang, "Using a New Type of GPS Buoy for Determining the Mean Sea Level," Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012), Nashville, TN, September 2012, pp. 1173-1178.
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