Data assimilation of coherent structures in parametric and gridded spaces: an idealized ocean eddy study
Data assimilation of coherent structures in parametric and gridded spaces: an idealized ocean eddy study
Solène Dealbera, Stéphane Raynaud, Carlos Granero Belinchon, Brahim Boussidi, Clément Le Goff, and Pierre Tandeo
Nonlin. Processes Geophys., 33, 489–501, https://doi.org/10.5194/npg-33-489-2026, 2026
The goal of data assimilation in geoscience is to merge information from models and observations. In the presence of structures such as ocean eddies, classic assimilation schemes fail to merge those two sources, resulting in position and shape errors. Here, we propose a new scheme which assimilates only the parameters describing a simplified eddy structure. Comparison with classic schemes shows that our approach preserves the eddy parameters and may reduce the computational cost.