An observer for an occluded reaction-diffusion system with spatially varying parameters

Abstract

Spatially dependent parameters of a two-component chaotic reaction-diffusion partial differential equation (PDE) model describing ocean ecology are observed by sampling a single species. We estimate the model parameters and the other species in the system by autosynchronization, where quantities of interest are evolved according to misfit between model and observations, to only partially observed data. Our motivating example comes from oceanic ecology as viewed by remote sensing data, but where noisy occluded data are realized in the form of cloud cover. We demonstrate a method to learn a large-scale coupled synchronizing system that represents the spatio-temporal dynamics and apply a network approach to analyze manifold stability.

Document Details

Document Type
Pub Defense Publication
Publication Date
Mar 01, 2017
Source ID
10.1063/1.4977960

Entities

People

  • Erik M. Bollt
  • Sean Kramer

Organizations

  • Army Research Office
  • Clarkson University
  • Norwich University
  • Office of Naval Research

Tags

Fields of Study

  • Mathematics

Readers

  • Computational Modeling and Simulation
  • Distributed Systems and Data Platform Development
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)