Abstract
Canada plans to implement a geoid-based and GNSS-accessible vertical datum in 2013 in order to replace the existing Canadian Geodetic Vertical Datum of 1928, which no longer meets the needs of the modern user in terms of accuracy and accessibility. One of the primary concerns when realizing a geoid-based vertical datum is to determine the W 0 value that will represent the potential of the zero-height surface. Thus, the objective of this study is to determine W 0 by averaging the potential of points on the mean water surface by using Canadian tide gauge records and GOCE-based global geopotential models. The GOCE-based models are extended with the high-resolution gravity field model EGM2008 in order to assess the effect of the omission error on the computation of W 0. Similarly, the regional gravimetric geoid model CGG2010 is also used for the estimation of W 0 in order to assess the effect of higher frequency contributions of the gravity field, which are missing from the GOCE-based global geopotential models. Additionally, sea surface topography models are utilized in order to validate the W 0 results based on tide gauges and to estimate W 0 values for North America. The W 0 values obtained using Canadian tide gauges and high resolution gravity field and geoid models are not statistically different from the International Earth Rotation and Reference Systems Service 2010 global conventional value of 62,636,856.00 m2/s2.
International Symposium on Gravity, Geoid and Height Systems, 9–12 October 2012, Venice, Italy
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References
Ardalan AA, Safari A (2005) Global height datum unification: a new approach in gravity potential space. J Geod 79:512–523. doi:10.1007/s00190-005-0001-0
Ardalan A, Grafaren E, Kakkuri J (2002) National height datum, the Gauss-Listing geoid level value w0 and its time variation (Baltic Sea Level Project: epochs 1990.8, 1993.8, 1997.4). J Geod 76:1–28
Argus DE, Peltier WR (2010) Constraining models of postglacial rebound using space geodesy: a detailed assessment of model ICE-5G (VM2) and its relatives. Geophys J Int 181:697–723. doi:10.1111/j.1365-246X.2010.04562.x
Bourgault D, Koutitonsky VG (1999) Real-time monitoring of the freshwater discharge at the head of the St. Lawrence Estuary. Atmosphere-Ocean 37(2):203–220
Burša M, Kouba J, Raděj K, True SA, Vatrt V, Vojtìšková M (1998) Mean Earth’s equipotential surface from TOPEX/POSEIDON altimetry. Studia Geoph et Geod 42:459–466
Church JA, White NJ, Coleman R, Lambeck K, Mitrovica J (2004) Estimates of the regional distribution of sea level rise over the 1950-2000 period. J Clim 17:2609–2625
Dayoub N, Edwards SJ, Moore P (2012) The Gauss-Listing geopotential value W0 and its rate from altimetric mean sea level and GRACE. J Geod 86(9):681–694
Ekman M (1989) Impacts of geodynamic phenomena on systems for height and gravity. Bull Geod 63:281–296
ESA (2011) ESA GOCE earth explorers. http://www.esa.int/esaLP/ESAYEK1VMOC_LPgoce_0.html
Foreman MGG, Crawford WR, Cherniawsky JY, Galbraith J (2008) Dynamic ocean topography for the northeast Pacific and its continental margins. Geophys Res Lett 35(22): L22606. doi:10.1029/2008GL035152
Grafarend EW, Ardalan AA (1997) W0: an estimate in the Finnish Height Datum N60, epoch 1993.4 from twenty-five GPS points on the Baltic Sea Level Project. J Geod 71:673–679
Hirt C, Kuhn M, Featherstone WE, Göttl F (2012) Topographic/isostatic evaluation for new-generation GOCE gravity field models. J Geophys Res. doi:10.1029/2011JB00878
Huang J, Véronneau M (2013) Canadian gravimetric geoid model 2010. J Geod 87(8):771–790. doi:10.1007/s00190-013-0645-0
Ince ES, Sideris MG, Huang J, Véronneau M (2012) Assessment of the GOCE-based global gravity models in Canada. Geomatica 66(2):125–145
Mazzotti S, Jones C, Thomson RE (2008) Relative and absolute sea level rise in western Canada and northwestern United States from a combined tide gauge-GPS analysis. J Geophys Res. doi:10.1029/2008JC004835
Pavlis NK, Holmes SA, Kenyon SC, Factor JK (2012) The development and evaluation of the Earth Gravitational Model 2008 (EGM2008). J Geophys Res. doi:10.1029/2011JB008916
Petit G, Luzum B (2010) IERS convention 2010. IERS Technical Note 36, Verlag den Bundesamtes für Kartographie und Geodäsie, Frankfurt
Rangelova E, van der Wal W, Sideris MG (2012) How significant is the dynamic component of the North American vertical datum? J Geod Sci 2(4):281–289
Sánchez L (2009) Strategy to establish a global vertical reference system. In: Drewes H (ed) Geodetic reference frames. International association of geodesy symposia, vol 134, pp 273–278. doi:10.1007/978-3-642-00860-3_42
Snay R, Cline M, Dillinger W, Foote R, Hilla S, Kass W et al (2007) Using global positioning-system derived crustal velocities to estimate rates of absolute sea level change from North America tide gauge records. J Geophys Res. doi:10.1029/2006JB004606
Thompson KR, Demirov E (2006) Skewness of sea level variability of the world’s oceans. J Geophys Res. doi:10.1029/2004JC002839
Yonghai C, Jiancheng L (2012) Determination of mean sea level geopotential from global gravity field model and global sea surface height model. J Geod Geodyn 32(5):58–62
Acknowledgements
This work is a contribution to the ESA STSE—GOCE + Height System Unification with GOCE project, and was also supported by NSERC and the GEOIDE Network of Centres of Excellence. The late D.G. Wright is acknowledged for the development of the regional Atlantic SST model used in this study. P. Woodworth and C. Hughes `from NOC Liverpool' are also acknowledged for providing the global SST models.
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Hayden, T., Rangelova, E., Sideris, M.G., Véronneau, M. (2014). Contribution of Tide Gauges for the Determination of W0 in Canada. In: Marti, U. (eds) Gravity, Geoid and Height Systems. International Association of Geodesy Symposia, vol 141. Springer, Cham. https://doi.org/10.1007/978-3-319-10837-7_31
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DOI: https://doi.org/10.1007/978-3-319-10837-7_31
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