Table 2.

Geophysical Corrections applied to each altimeters.

	SARAL/AltiKa	Cryosat-2	Sentinel-3A
Orbit	POE-E37	POE-E37	POE-E37
Ocean Tide	FES1438	FES1438	FES1438
Polar Tide	From Desai et al.56	From C2 Product	From Desai et al.56
Earth Tide	Elastic response to tidal potential (from Cartwright and Tayler, 1971)57	Elastic response to tidal potential (from Cartwright and Tayler, 1971)57	Elastic response to tidal potential (from Cartwright and Tayler, 1971)57
Dry Tropospheric Correction	Model from ECMWF gaussian grids	Model from ECMWF gaussian grids	Model from ECMWF gaussian grids
Wet Tropospheric Correction	Model from ECMWF gaussian grids	Model from ECMWF gaussian grids	Model from ECMWF gaussian grids
Ionospheric Correction	GIM40	GIM40	GIM40
Sea State Bias	Non-Parametric58	Non-Parametric58	Non-Parametric58
Dynamic Atmospheric Correction	MOG2D high frequencies (open ocean) and inverse barometer forced with atmospheric ECMWF pressure and wind field (Carrere and Lyard, 2003)41	MOG2D high frequencies (open ocean) and inverse barometer forced with atmospheric ECMWF pressure and wind field (Carrere and Lyard, 2003)41	MOG2D high frequencies (open ocean) and inverse barometer forced with atmospheric ECMWF pressure and wind field (Carrere and Lyard, 2003)41
Mean Sea Suface	CNESCLS1543	CNESCLS1543	CNESCLS1543