Document type
Journal articles
Document subtype
Full paper
Title
Nonlinear causal dependencies as a signature of the complexity of the climate dynamics
Participants in the publication
Stéphane Vannitsem (Author)
X. San Liang (Author)
Carlos A. Pires (Author)
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Dep. Engenharia Geográfica, Geofísica e Energia
IDL
Summary
Nonlinear causal dependencies as a signature of the complexity of the climate dynamics\nStéphane Vannitsem, X. San Liang, and Carlos A. Carlos Pires\nAbstract\nNonlinear quadratic dynamical dependencies of large-scale climate modes are disentangled through the analysis of the rate of information transfer. Eight dominant climate modes are investigated, covering the tropics and extratropics over the North Pacific and Atlantic. A clear signature of nonlinear influences at low frequencies (timescales larger than 1 year) is emerging, while high frequencies are only affected by linear dependencies. These results point to the complex nonlinear collective behaviour at the global scale of the climate system at low frequencies, supporting earlier views that regional climate modes are local expressions of global intricate low-frequency-variability (LFV) dynamics, which are still to be fully uncovered.
Date of Submisson/Request
2024-10-23
Date of Acceptance
2025-03-06
Date of Publication
2025-05-21
Where published
Earth System Dynamics
Publication Identifiers
ISSN - 2190-4987
Publisher
Copernicus GmbH
Number of pages
17
Starting page
703
Last page
719
Document Identifiers
DOI -
https://doi.org/10.5194/esd-16-703-2025
URL -
https://doi.org/10.5194/esd-16-703-2025
Rankings
SCIMAGO Q1 (2023) - 3.154 - Earth and Planetary Sciences (miscellaneous)
SCOPUS Q1 (2023) - 13.2 - Earth and Planetary Sciences (all)
Web Of Science Q1 (2023) - 7.9 - GEOSCIENCES, MULTIDISCIPLINARY
Download