North Atlantic Oscillation Presentation

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Model Verification- UnfilteredModel simulates the main features of theNAO index well.Correlation b/w simulated and observed issignificant at the 98% level.Assuming SST is known, it may bepossible to predict the correct sign 2 out of3 years.Ensemble performs the best.16
Model Verification-FilteredTime scales longer than 6.5 years.Correlation is significant at the 99.9% levelObserved European sfc T and NAO indexis highly correlated, model does not do aswell.Note: The atmospheric model used doesnot have feedback into the ocean.Skill resides in prescribed SST and seaice.17
Page 5 and 6: The positive phaseStronger subtropi
Page 7 and 8: The negative phaseWeak subtropical
Page 9 and 10: The North Atlantic OscillationIndex
Page 11 and 12: Difference b/w - and + phase.Negati
Page 13 and 14: MethodologyInstruments:Global Atmos
Page 15: Model Verification15
Page 19 and 20: Regression of the observedunfiltere
Page 21 and 22: Set of figures from Grotzner21
Page 23 and 24: ConclusionsEvidence has been provid
Page 25 and 26: Future WorkResolve the differences.

North Atlantic Oscillation Presentation

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