Assessing causal dependencies in climatic indices
We evaluate causal dependencies between thirteen indices that represent large-scale climate patterns (El Nino/Southern Oscillation, the North Atlantic Oscillation, the Pacifc Decadal Oscillation, etc.) using a recently proposed approach based on a linear approximation of the transfer entropy. We dem...
| Autores: | , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/379385 |
| Acesso em linha: | https://hdl.handle.net/2117/379385 https://dx.doi.org/10.1007/s00382-022-06562-0 |
| Access Level: | acceso abierto |
| Palavra-chave: | Climatology Time--Systems and standards Entropy Dynamic climatology ENSO North Atlantic Oscillation Pacifc Decadal Oscillation Causality Transfer entropy Climatologia Temps--Sistemes i mesures Entropia Climatologia dinàmica Àrees temàtiques de la UPC::Física |
| Resumo: | We evaluate causal dependencies between thirteen indices that represent large-scale climate patterns (El Nino/Southern Oscillation, the North Atlantic Oscillation, the Pacifc Decadal Oscillation, etc.) using a recently proposed approach based on a linear approximation of the transfer entropy. We demonstrate that this methodology identifes causal relations that are well-known, as well as it uncovers some relations which, to the best of our knowledge, have not yet been reported in the literature. We also identify signifcant changes in causal dependencies that have occurred in the last three decades. |
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