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Nonlinear atmospheric teleconnections

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Title: Nonlinear atmospheric teleconnections
Author: Hsieh, William W.; Wu, Aiming; Shabbar, Amir
Issue Date: 2006-04-12
Publicly Available in cIRcle 2011-03-23
Publisher American Geophysical Union
Citation: Hsieh, William W., Wu, Aimeng, Shabbar, Amir. 2006. Nonlinear atmospheric teleconnections. Geophysical Research Letters 33 L07714 dx.doi.org/10.1029/2005GL025471
Abstract: Neural network models are used to reveal the nonlinear winter atmospheric teleconnection patterns associated with the El Niño-Southern Oscillation (ENSO) and with the Arctic Oscillation (AO) over the N. Hemisphere. The nonlinear teleconnections (for surface air temperature, precipitation, sea level pressure and 500 hPa geopotential height) are found to relate quadratically to the ENSO and AO indices. Relative to linear teleconnections, nonlinear teleconections appear to propagate perturbations farther, into regions where classical linear teleconnections are insignificant. An edited version of this paper was published by AGU. Copyright 2006 American Geophysical Union.
Affiliation: Earth and Ocean Sciences, Dept. of (EOS), Dept of
URI: http://hdl.handle.net/2429/32799
Peer Review Status: Reviewed
Scholarly Level: Faculty

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