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Understanding Key Roles of Two ENSO Modes in Spatiotemporal Diversity of ENSO
2020
Journal of Climate
El Niño-Southern Oscillation (ENSO) events exhibit a diversity of amplitudes, spatial patterns and life cycles, while the 3–7-yr (low-frequency, LF) and 2–3-yr (quasi-biennial, QB) bands concentrate main ENSO periods. In this study, the spatiotemporal diversity of ENSO is quantitatively examined by extracting the two ENSO modes, viz., the LF and QB components of ENSO, from the traditional Niño3.4 index and connecting them with the spatial types of ENSO. El Niño events can be regrouped as the
doi:10.1175/jcli-d-19-0770.1
fatcat:3rp3jljykvhvzl2guugxdv5nci