Articles | Volume 33, issue 1
https://doi.org/10.5194/npg-33-103-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/npg-33-103-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Inferring the role of Interdecadal Pacific Oscillation phase on tropical-extratropical teleconnection dependencies
Mark A. Collier
CORRESPONDING AUTHOR
CSIRO Environment, Aspendale, Melbourne, Victoria, Australia
Dylan Harries
South Australian Health & Medical Research Institute, Adelaide, Australia
Terence J. O'Kane
CSIRO Environment, Battery Point, Hobart, Tasmania, Australia
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Terence J. O'Kane and Courtney R. Quinn
Nonlin. Processes Geophys., 33, 51–72, https://doi.org/10.5194/npg-33-51-2026, https://doi.org/10.5194/npg-33-51-2026, 2026
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Mathematical concepts and measures from dynamical systems theory are applied to identify commonalities across a diverse set of chaotic attractors to better understand the relationship between predictability, directions and rates of expansion and contraction of instabilities over finite time forecast horizons, and dimensionality. The patterns that emerge have broad implications for understanding many dynamical features of geophysical flows.
Serena Schroeter, Terence J. O'Kane, and Paul A. Sandery
The Cryosphere, 17, 701–717, https://doi.org/10.5194/tc-17-701-2023, https://doi.org/10.5194/tc-17-701-2023, 2023
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Antarctic sea ice has increased over much of the satellite record, but we show that the early, strongly opposing regional trends diminish and reverse over time, leading to overall negative trends in recent decades. The dominant pattern of atmospheric flow has changed from strongly east–west to more wave-like with enhanced north–south winds. Sea surface temperatures have also changed from circumpolar cooling to regional warming, suggesting recent record low sea ice will not rapidly recover.
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Short summary
Here we apply Bayesian methods to reconstructed and simulated climate model data over past decades to determine the role of long timescale phase dependencies, and extratropical teleconnections, on the major drivers of tropical climate variability.
Here we apply Bayesian methods to reconstructed and simulated climate model data over past...