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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

From: GENESIS: co-location of geodetic techniques in space

 

Ocean mass

Greenland

Antarctica

 

mm SLE

Gt

Gt

X

0.5

<1

\(<1\)

Y

0.3

<1

7

Z

0.6

11

68

  1. Updated from Blazquez et al. (2018)