Analysis and evolution of climatic dynamics during last fifty years in Sicily

Autori

  • Franco Colombo Unime
  • Maria Teresa Caccamo Università degli Studi di Messina, Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Viale F. S. D'Alcontres 31, 98166 Messina
  • Salvatore Magazù Università degli Studi di Messina Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Viale F. S. D'Alcontres 31, 98166 Messina

DOI:

https://doi.org/10.1478/AAPP.97S2A20

Parole chiave:

climate variability, wavelet transform, temperature series, Sicily, trend

Abstract

In the last years the Wavelet Transform has received a lot of attention for the ability to provide a time–frequency representation of analysed signals in the time domain. Such an advanced time-frequency analysis has been effectively applied in various fields, such as, for example, geophysics, astrophysics, telecommunications and climatology. The paper reports the results of the time series of temperature of some Sicilian weather stations. First, different methods have been applied in order to identify cycles and trends present in signals and then, by means of wavelet coherence analysis, a correlation between the cycles present in signals and the solar cycles such as the North Atlantic Oscillation (NAO) and the El Nino Southern Oscillation (ENSO). Finally, the capability of wavelet to highlight the breakdown or discontinuities contained in the signals, has been investigated.

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Pubblicato

2019-12-20

Fascicolo

Vol 97, SUPPL NO 2 (2019): NACS 2017

Sezione

NACS 2017 (Conference Proceedings)

Licenza

Creative Commons License
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