Surrogate-based variational data assimilation for tidal modelling

• Published in: arXiv.org
• Main Authors: Rem-Sophia Mouradi, Goeury, Cédric, Thual, Olivier, Zaoui, Fabrice, Tassi, Pablo
• Format: Paper
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 08.06.2021
• Subjects: Computing costs; Cost analysis; Cost function; Covariance matrix; Data assimilation; Metamodels; Numerical models; Polynomials; Proper Orthogonal Decomposition; Robustness (mathematics); Variational methods

Data assimilation (DA) is widely used to combine physical knowledge and observations. It is nowadays commonly used in geosciences to perform parametric calibration. In a context of climate change, old calibrations can not necessarily be used for new scenarios. This raises the question of DA computat...