Progress in Earth and Planetary Science

Table 2 Estimated relative site positions

From: Heterogeneous interplate coupling along the Nankai Trough, Japan, detected by GPS-acoustic seafloor geodetic observation

Epoch (year)	Eastward (m)	Northward (m)
TOK1
2006.630^a	0.000	0.000
2007.285^a	0.030	−0.015
2008.537	−0.004	−0.001
2009.340	−0.022	0.008
2009.545	0.004	−0.008
2009.627	−0.005	−0.011
2010.595	−0.073	−0.023
2010.948	−0.037	−0.005
2011.068^b	−0.066	−0.018
TOK2
2006.847^a	0.000	0.000
2007.633^a	0.002	−0.002
2008.030^a	−0.076	−0.014
2008.526	−0.078	−0.003
2009.104	−0.098	−0.017
2009.548	−0.105	−0.037
2010.063	−0.120	0.017
2010.595	−0.106	−0.017
2010.964	−0.116	−0.001
2011.066	−0.122	0.015
KUM1
2007.638^a	0.000	0.000
2008.726	0.025	0.018
2009.337	0.019	0.017
2009.551	0.019	−0.001
2009.827^ab	0.002	−0.025
2010.041	0.060	−0.025
2010.597	0.019	0.025
2011.055	0.004	0.003
KUM3
2006.405^a	0.000	0.000
2007.337^a	0.053	0.011
2007.655^a	0.014	0.027
2008.704	0.047	0.046
2009.112	0.043	0.032
2009.334	0.017	0.065
2009.551	0.036	0.028
2010.060	0.011	0.013
2010.600	0.011	0.018
2011.058	−0.037	0.001
SIOW
2006.690^ab	0.000	0.000
2007.644^a	−0.045	−0.039
2008.036^a	0.005	−0.039
2008.707	−0.034	−0.074
2009.323	−0.055	−0.018
2009.553	−0.049	−0.045
2010.047	−0.053	−0.025
2010.603	−0.043	−0.010
2011.063	−0.085	−0.029
MRT2
2006.666^a	0.000	0.000
2007.348^a	0.013	−0.037
2008.707	0.023	−0.026
2009.110	−0.010	−0.031
2009.332	0.014	−0.002
2009.556	0.007	−0.046
2010.049	0.030	−0.049
2010.603	−0.021	−0.031
2010.956	−0.028	−0.058

Reference frame is ITRF2005 (Altamimi et al. 2007). ^aEpoch with drafting observations. ^bRelatively unreliable due to less data.

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