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physics.comp-ph2023★ 9 cited
Interpretable structural model error discovery from sparse assimilation increments using spectral bias-reduced neural networks: A quasi-geostrophic turbulence test case
Rambod Mojgani, Ashesh Chattopadhyay, Pedram Hassanzadeh
Earth system models suffer from various structural and parametric errors in their representation of nonlinear, multi-scale processes, leading to uncertainties in their long-term pr…
physics.comp-ph2021★ 21 cited
Discovery of interpretable structural model errors by combining Bayesian sparse regression and data assimilation: A chaotic Kuramoto-Sivashinsky test case
Rambod Mojgani, Ashesh Chattopadhyay, Pedram Hassanzadeh
Models of many engineering and natural systems are imperfect. The discrepancy between the mathematical representations of a true physical system and its imperfect model is called t…