Impact of ENSO in Ecuador: a multiscale wavelet analysis, its relationship with extreme events, and human settlements in the Anthropocene

Authors

Bruce Tumbaco
Universidad Regional Amazónica, Ikiam. INAMHI. ENANDES+
https://orcid.org/0000-0002-3558-2923
Estefania Garcia
Universidad Regional Amazónica, Ikiam
https://orcid.org/0009-0000-8559-866X
Sandra Torres
Universidad Central del Ecuador, UCE. INAMHI
https://orcid.org/0000-0003-3581-9086
Enzo Loor
Escuela Superior Politécnica Agropecuaria de Manabí, ESPAM
https://orcid.org/0009-0003-8081-5559

Synopsis

The El Niño–Southern Oscillation (ENSO) has been a key modulator of climate variability in Ecuador, generating differentiated impacts across regions and influencing both ecosystems and human societies. The objective of this study was to analyze the ENSO signal through wavelet transforms applied to historical precipitation series from 17 conventional meteorological stations between 1964 and 2020, in order to identify high- and low-frequency oscillations. These signals were related to records of extreme events reported across the four regions of Ecuador. The results showed that 2–8-year oscillations coincided with the main flood and drought episodes, whereas multidecadal signals reflected persistent patterns. In conclusion, ENSO exerted a sustained influence on the occurrence of extreme hydrometeorological events, highlighting the vulnerability of human settlements during the Anthropocene.

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Published

May 25, 2026

How to Cite

Impact of ENSO in Ecuador: a multiscale wavelet analysis, its relationship with extreme events, and human settlements in the Anthropocene. (2026). In III International Congress of Biotechnology and Neotropical Ecosystems (p. cter.e9). Editorial Unión Científica. https://doi.org/10.63804/CIBEN.25.cter.e9