On the Resonances and Teleconnections of the North Atlantic and Madden-Julian Oscillations
- 1Bureau of Meteorology, Melbourne, Australia.
- 2Environment Canada, Dorval, Canada.
The key to better prediction of S2S variability and weather regimes in a changing climate lies with improved understanding of the fundamental nature of S2S phase space structure and associated predictability and dynamical processes. The latter can be decomposed into a finite number of relatively large-scale discrete-like Rossby waves with coherent space-time characteristics using Empirical Normal Mode (ENM) analysis. ENM analysis is based on principal component analysis, conservation laws and normal mode theories. These modes evolve in a complex manner through nonlinear interactions with themselves and transient eddies and weak dissipative processes. Within this atmospheric dynamic framework, we will discuss the teleconnections and the 35-day wave resonance of the North Atlantic Oscillation using recent diagnostics and numerical experiments.
References
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How to cite: Brunet, G., Martinez, Y., Lin, H., and Bernier, N.: On the Resonances and Teleconnections of the North Atlantic and Madden-Julian Oscillations, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-3951, https://doi.org/10.5194/egusphere-egu2020-3951, 2020