Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
NPG
Articles | Volume 29, issue 2
Articles | Volume 29, issue 2
https://doi.org/10.5194/npg-29-241-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/npg-29-241-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 29, issue 2
Research article
 | 
22 Jun 2022
Research article |  | 22 Jun 2022

A stochastic covariance shrinkage approach to particle rejuvenation in the ensemble transform particle filter

Andrey A. Popov, Amit N. Subrahmanya, and Adrian Sandu

Model code and software

ComputationalScienceLaboratory/ODE-Test-Problems: v0.0.1 (v0.0.1) Steven Roberts, Andrey A Popov, Arash Sarshar, Reid Gomillion, and Adrian Sandu https://doi.org/10.5281/zenodo.6676706

ComputationalScienceLaboratory/DATools: v0.0.1 (v0.0.1) Andrey A. Popov, Abhinab Bhattacharjee, Amit N. Subrahmanya, and Adrian Sandu https://doi.org/10.5281/zenodo.6676745

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Short summary
Numerical weather prediction requires the melding of both computational model and data obtained from sensors such as satellites. We focus on one algorithm to accomplish this. We aim to aid its use by additionally supplying it with data obtained from separate models that describe the average behavior of the computational model at any given time. We show that our approach outperforms the standard approaches to this problem.
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