Variability of El Niño-Southern oscillation from 1880 to 2010 revealed by wavelet analysis
Year: 2011
Type: article
Abstract: The El Niño-Southern oscillation (ENSO) is shown to have undergone significant changes in variance and coherency over the last 130 years. Wavelet analysis is applied to sea surface temperature anomalies (Niño3 SSTA) index to obtain frequencies of the temporal variations in the signal. This technique works in terms of specific events while allowing a researcher to keep an eye on the ensemble properties. By using this relatively new method, our study aims at investigating a quantitative measure of changes in ENSO variance on long-term time scales. Using ERSST.v3b SSTA averaged over the Niño3 region (5 N-5 S 150-
DOI: 10.5897/ijps10.618
Authors: Mahdi Haddad, Mohamed Belbachir, Salem Kahlouche
Language: English
Subfield: Global and Planetary Change
Field: Environmental Science
Domain: Physical Sciences
SDG: Climate action
Open Access status: diamond
OpenAlex ID: W2170355016