Table 2 Uncertainty in the water mass change induced by an uncertainty of 1 mm in each axis of the geocenter motion. Note that cubic kilometers (km\(^{3}\)), gigatons (Gt) and mm Sea Level Equivalent (mm SLE) are common units used to describe an amount of water mass, usually assuming the density of the water as the density of freshwater: 1 km\({^3}\) \(\sim\)\(=\) 1 Gt 1 \(\times\, 10^{12}\) kg \(\sim\, 1/360\) mm SLE