Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 11, issue 3
Articles | Volume 11, issue 3
https://doi.org/10.5194/essd-11-1189-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-11-1189-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 3
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, Benoît Meyssignac, Lionel Zawadzki, Rémi Jugier, Aurélien Ribes, Giorgio Spada, Jerôme Benveniste, Anny Cazenave, and Nicolas Picot

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.
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