Tziperman, EliScher, HarveyZebiak, Stephen E.Cane, Mark A.2009-11-301997Tziperman, Eli, Harvey Scher, Stephen E. Zebiak, and Mark A. Cane. 1997. Controlling spatiotemporal chaos in a realistic El Nino prediction model. Physical Review Letters 79(6): 1034-1037.0031-9007http://nrs.harvard.edu/urn-3:HUL.InstRepos:3425922A method for controlling low-order chaotic behavior of continuous spatiotemporal systems is developed and demonstrated in a complex, realistic 3D partial differential equation model that is used successfully for predicting El Niño events in the equatorial Pacific. An unstable periodic orbit that involves a full-domain oscillation is stabilized using a feedback control applied to a single degree of freedom at a carefully chosen single “choke point” in space. A general criterion is presented for determining the optimal points in reconstructed delay-coordinate phase space at which to apply the feedback control.en-USJournal Article2009-11-3010.1103/PhysRevLett.79.1034