Exploring climate variability in the Mataquito river basin of the Maule region, Chile: a spectral analysis approachTop of Form
May 1, 2024 - Garces-Galvez, Juan Jose; Geraldi, Alejandra; Medina-Tapia, Marcos
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Abstract: The ecosystem services of freshwater provision and climate regulation depend on climate variability, so it is critical to understand climate variability to analyze the interaction between the natural and social systems. The Mataquito River basin, located in the Maule Region of Chile, transitions from mountainous terrain to coastal areas, giving rise to diverse landscapes, industrial activities, and microclimatic conditions. This work Basin by applying spectral analysis techniques. The work meth od consists of three stages: (i) downloading and consolidation of meteorological data series; (ii) application of Fast Fourier Transform (FFT) and Wavelet techniques; and (iii) analysis of seasonal, annual, interannual, and decadal climate variability scales. The results indicate that there are seasonal, annual, and interannual variations. Finally, the lowest frequencies of the precipitation and temperature spectrum reflect phenomena with a typical duration of 3 to 7 years, coinciding with the duration of the El Ni & ntilde;o-Southern Oscillation (ENSO) phenomenon.
Type of Publication: Article
