Articles | Volume 11, issue 3
Earth Syst. Sci. Data, 11, 1189–1202, 2019
https://doi.org/10.5194/essd-11-1189-2019
Earth Syst. Sci. Data, 11, 1189–1202, 2019
https://doi.org/10.5194/essd-11-1189-2019

Data description paper 07 Aug 2019

Data description paper | 07 Aug 2019

Uncertainty in satellite estimates of global mean sea-level changes, trend and acceleration

Michaël Ablain et al.

Data sets

Error variance-covariance matrix of global mean sea level estimated from satellite altimetry (TOPEX, Jason 1, Jason 2, Jason 3) M. Ablain, B. Meyssignac, L. Zawadzki, R. Jugier, A. Ribes, A. Cazenave, and N. Picot https://doi.org/10.17882/58344

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Short summary
A description of the uncertainties in the Global Mean Sea Level (GMSL) record has been performed; 25 years of satellite altimetry data were used to estimate the error variance–covariance matrix for the GMSL record to derive its confidence envelope. Then a least square approach was used to estimate the GMSL trend and acceleration uncertainties over any time periods. A GMSL trend of 3.35 ± 0.4 mm/yr and a GMSL acceleration of 0.12 ± 0.07 mm/yr² have been found within a 90 % confidence level.