Articles | Volume 29, issue 1
https://doi.org/10.5194/npg-29-133-2022
https://doi.org/10.5194/npg-29-133-2022
NPG Letters
 | 
28 Mar 2022
NPG Letters |  | 28 Mar 2022

Control simulation experiment with Lorenz's butterfly attractor

Takemasa Miyoshi and Qiwen Sun

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Cited articles

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Evans, E., Bhatti, N., Kinney, J., Pann, L., Peňa, M., Yang, S. C., Kalnay, E., and Hansen, J.: RISE undergraduates find that regime changes in Lorenz's model are predictable, B. Am. Meteorol. Soc., 85, 521–524, 2004. 
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Short summary
The weather is chaotic and hard to predict, but the chaos implies an effective control where a small control signal grows rapidly to make a big difference. This study proposes a control simulation experiment where we apply a small signal to control nature in a computational simulation. Idealized experiments with a low-order chaotic system show successful results by small control signals of only 3 % of the observation error. This is the first step toward realistic weather simulations.
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