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Observation of Phase-Locked States in the Atlantic Multi-Decadal Oscillation (AMO)

DOI: 10.4236/acs.2018.83023, PP. 344-354

Keywords: Climate Shift, El Ni?o, AMO, Phase-Locked States

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We report that the Atlantic Multi-Decadal Oscillation (AMO) shows the same phase-locked states of period 2 and 3 years that have been reported in many other climate indices. In addition, we find that the report by Muller, Curry et al. of an oscillation in the AMO of 9.1 years is a misinterpretation of a maximum in the Fourier spectrum.


[1]  Schlesinger, M. and Ranankutty, N. (1994) An Oscillation in the Global Climate System of Period 65-70 Years. Nature, 367, 723-726.
[2]  Douglass, D.H. (2010) Topology of Earth’s Climate Indices and Phase-Locked States. Physics Letters A, 374, 4164-4168.
[3]  Muller, A.R., Curry, J., Groom, D., Jacobson, R., Perlmutter, S., Ronde, R., Rosenfeld, A., Wickhamand, C. and Wurtle, J. (2013) Decadal Variation in the Global Atmospheric Land Temperatures. Journal of Geophysical Research: Atmospheres, 118, 5280-5286.
[4]  Trenberth, K.E. (1990) Recent Observed Interdecadal Climate Changes in the Northern Hemisphere. Bulletin of the American Meteorological Society, 71, 988-993.<0988:ROICCI>2.0.CO;2
[5]  Douglass, D.H. (2011) The Pacific Sea Surface Temperature. Physics Letters A, 376.
[6]  Douglass, D. (2013) Phase-Locked States and Abrupt Shifts in Pacific Climate Indices. Physics Letters A, 377, 1749-1755.
[7]  Douglass, D.H., Knox, R.S., Curtis, S., Giese, B.S. and Ray, S. (2017) Historical Phase-Locked El Niño Episodes. Atmospheric and Climate Sciences, 7, 48-64.
[8]  NOAA/CPC (2017) SST3.4 and Niño3.4.
[9]  Douglass, D.H. (2011) Separation of a Signal of Interest from the Seasonal Effect in Geophysical Data: I. El Niño/La Niña Phenomenon. International Journal of Geosciences, 2, 414-419.
[10]  Klotzbach P., Gray, W. and Fogarty, C. (2015) Active Atlantic Hurricane Era at Its End? Nature Geoscience, 8, 737-738.
[11]  Douglass, D. (2018) An El Ñino That Failed to “Appear”, an ElÑino That Was “Hiding” and a Prediction of the Next El Ñino. Atmospheric and Climate Science, 8, 55-82.


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