Articles | Volume 18, issue 5
Research article
01 Sep 2022
Research article |  | 01 Sep 2022

On the uncertainty associated with detecting global and local mean sea level drifts on Sentinel-3A and Sentinel-3B altimetry missions

Rémi Jugier, Michaël Ablain, Robin Fraudeau, Adrien Guerou, and Pierre Féménias

Related authors

Monitoring the ocean heat content change and the Earth energy imbalance from space altimetry and space gravimetry
Florence Marti, Alejandro Blazquez, Benoit Meyssignac, Michaël Ablain, Anne Barnoud, Robin Fraudeau, Rémi Jugier, Jonathan Chenal, Gilles Larnicol, Julia Pfeffer, Marco Restano, and Jérôme Benveniste
Earth Syst. Sci. Data, 14, 229–249,,, 2022
Short summary
Brief communication: Evaluation of the snow cover detection in the Copernicus High Resolution Snow & Ice Monitoring Service
Zacharie Barrou Dumont, Simon Gascoin, Olivier Hagolle, Michaël Ablain, Rémi Jugier, Germain Salgues, Florence Marti, Aurore Dupuis, Marie Dumont, and Samuel Morin
The Cryosphere, 15, 4975–4980,,, 2021
Short summary

Related subject area

Depth range: All Depths | Approach: Remote Sensing | Geographical range: All Geographic Regions | Properties and processes: Sea level | Challenges: Oceans and climate
Current observed global mean sea level rise and acceleration estimated from satellite altimetry and the associated measurement uncertainty
Adrien Guérou, Benoit Meyssignac, Pierre Prandi, Michaël Ablain, Aurélien Ribes, and François Bignalet-Cazalet
Ocean Sci., 19, 431–451,,, 2023
Short summary
Revisiting the global mean ocean mass budget over 2005–2020
Anne Barnoud, Julia Pfeffer, Anny Cazenave, Robin Fraudeau, Victor Rousseau, and Michaël Ablain
Ocean Sci., 19, 321–334,,, 2023
Short summary

Cited articles

Ablain, M.: Estimating of Any Altimeter Mean Sea Level (MSL) drifts between 1993 and 2017 by Comparison with Tide-Gauges Measurements, 25 years of progress in altimetry radar symposium, (last access: 10 June 2022), 2018. 
Ablain, M., Meyssignac, B., Zawadzki, L., Jugier, R., Ribes, A., Spada, G., Benveniste, J., Cazenave, A., and Picot, N.: Uncertainty in satellite estimates of global mean sea-level changes, trend and acceleration, Earth Syst. Sci. Data, 11, 1189–1202,, 2019. 
Ablain, M., Jugier, R., Marti, F., Dibarboure, G., Couhert, A., Meyssignac, B., and Cazenave, A.: Benefit of a second calibration phase to estimate the relative global and regional mean sea level drifts between Jason-3 and Sentinel-6a, Earth and Space Science Open Archive [preprint],, 2020. 
Aublanc, J.: Impact of the range walk processing in the Sentinel-3A sea level trend, OSTST, (last access: 10 June 2022), 2020. 
AVISO: Along-track Sea Level Anomalies Level-2+ (L2P),, last access: 27 July 2022 (login required). 
Short summary
To ensure that the sea level is measured as accurately as possible by satellite altimeters, we must monitor possible sea level drifts caused by those instruments through comparison with other satellite altimeters or tide gauges. In this paper, we describe a method and estimate the associated uncertainties for detecting altimeter drifts over short time periods (from 2 to 10 years) through cross-comparison with other satellite altimeters and apply it to the recent Sentinel-3 A/B altimeters.