How well does ECCO capture the steric sea-level signal?

Aim

• Compare the steric sea-level component from ECCO (v4r4) to that from the most recent global mean sea level (GMSL) reconstruction from Dangendorf et al. (2024)

Conclusions

• Strong positive correlations and low RMSE in open ocean, weak/negative and higher RMSE at boundary currents, coasts, and in the Southern Ocean
• Mostly consistent that in regions with lower trend differences at tide gauges, models are better correlated
• ECCO is underestimating the steric sea-level trend in key locations (coasts/boundary currents)