Hamiltonian distributed chaos in the north-south dipole and quadrupole teleconnections

TL;DR

This paper demonstrates that key North Hemisphere teleconnections such as NAO, EPO, WPO, and PNA are governed by Hamiltonian distributed chaos on daily to intraseasonal scales, linking their chaotic properties to surface air temperature variations.

Contribution

It reveals the Hamiltonian distributed chaos nature of major teleconnection patterns and explores their differences and relations to surface air temperature and Arctic phenomena.

Findings

North-south teleconnections are dominated by Hamiltonian distributed chaos.

Differences in chaotic properties of dipole and quadrupole oscillations are identified.

PNA quadrupole pattern shows spectral affinity to Arctic Oscillation and Greenland blocking.

Abstract

It is shown that the north-south teleconnections in the northern hemisphere: North Atlantic (NAO), East Pacific (EPO), Western Pacific (WPO) dipole oscillations and Pacific/North American quadrupole pattern (PNA), are dominated by the Hamiltonian distributed chaos on the daily to intraseasonal time scales. Differences of the chaotic properties of the dipole and quadrupole oscillations as well as their relation to the surface air temperature have been briefly discussed. A chaotic spectral affinity of the PNA quadrupole pattern to the Arctic Oscillation and the Greenland blocking phenomenon have been considered in this context.