article Open AccessTop 10% cited
Interdecadal Changes in the ENSO–Monsoon System
Journal of Climate · 1999 · Vol. 12(8) · pp. 2679–2690
Christopher Torrence✉(NSF National Center for Atmospheric Research)Peter J. Webster(University of Colorado Boulder)
Abstract
The El Nin o-Southern Oscillation (ENSO) and Indian monsoon are shown to have undergone significant interdecadal changes in variance and coherency over the last 125 years. Wavelet analysis is applied to indexes of equatorial Pacific sea surface temperature (Nin o3 SST), the Southern Oscillation index, and all-India rainfall. Time series of 2-7-yr variance indicate intervals of high ENSO-monsoon variance (1875ENSO-monsoon variance ( -1920ENSO-monsoon variance ( and 1960-90) -90) and an interval of low variance . The ENSO-monsoon variance also contains a modulation of ENSOmonsoon amplitudes on a 12-20-yr timescale.
Climate variability and modelsOceanographic and Atmospheric ProcessesTropical and Extratropical Cyclones ResearchClimatologyEl Niño Southern OscillationMonsoonEnvironmental scienceSea surface temperatureMultivariate ENSO indexAnomaly (physics)Oscillation (cell signaling)AmplitudeVariance (accounting)
Funding
- National Science Foundation
- National Center for Atmospheric Research
- Met Office
- Commonwealth Scientific and Industrial Research Organisation
- National Oceanic and Atmospheric Administration
Citations
2,103
FWCI
8.99
field-weighted impact
References
58
Percentile
98%
vs. same field & year
Citations per year
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Journal of Climate · 1997 · 2,493 citations
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Monthly Weather Review · 1987 · 890 citations
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