Data driven computing by the morphing fast Fourier transform ensemble Kalman filter in epidemic spread simulations

نویسندگان

Jan Mandel

Jonathan D. Beezley

Loren Cobb

Ashok Krishnamurthy

چکیده

The FFT EnKF data assimilation method is proposed and applied to a stochastic cell simulation of an epidemic, based on the S-I-R spread model. The FFT EnKF combines spatial statistics and ensemble filtering methodologies into a localized and computationally inexpensive version of EnKF with a very small ensemble, and it is further combined with the morphing EnKF to assimilate changes in the position of the epidemic.

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