Learning vertical coordinates via automatic differentiation of a dynamical core
PositiveArtificial Intelligence
- A new framework has been proposed for defining a parametric vertical coordinate system as a learnable component within a differentiable dynamical core, addressing issues in atmospheric models that arise from terrain-following coordinates. This framework utilizes automatic differentiation to enhance the numerical solver for the two-dimensional non-hydrostatic Euler equations on an Arakawa C-grid, introducing the NEUral Vertical Enhancement (NEUVE) coordinate system.
- This development is significant as it aims to reduce spurious motions caused by distorted coordinate layers over steep topography, thereby improving the accuracy of atmospheric simulations. By integrating machine learning techniques, the approach offers a more adaptive and efficient solution compared to traditional methods that rely on heuristic parameters.
- The introduction of learnable components in dynamical systems reflects a broader trend in artificial intelligence and machine learning, where traditional modeling techniques are increasingly augmented by data-driven methods. This shift is evident in various domains, including urban flow modeling and data assimilation, highlighting the potential for enhanced predictive capabilities and improved performance in complex systems.
— via World Pulse Now AI Editorial System
