---
abstract: 'We introduce a data-driven method and shows its skills for spatiotemporal prediction of high-dimensional chaotic dynamics and turbulence. The method is based on a finite-dimensional approximation of the Koopman operator where the observables are vector-valued and delay-embedded, and the nonlinearities are treated as external forcings. The predictive capabilities of the method are demonstrated for well-known prototypes of chaos such as the Kuramoto-Sivashinsky equation and Lorenz-96 system, for which the data-driven predictions are accurate for several Lyapunov timescales. Similar performance is seen for two-dimensional lid-driven cavity flows at high Reynolds numbers.'
author:
- 'M. A. Khodkar$^1$'
- 'Pedram Hassanzadeh$^{1,2}$'
- 'Athanasios Antoulas$^{3, 4, 5}$'
bibliography:
- 'Main.bib'
title: 'A Koopman-based framework for forecasting the spatiotemporal evolution of chaotic dynamics with nonlinearities modeled as exogenous forcings'
---

[^1]

[^2]

[^1]: mkhodkar@rice.edu

[^2]: pedram@rice.edu
