Natural SciencesAgronomyMeteorologyClimatologyCrop EcologyCrop ProductionClimate Impact AssessmentDroughtEl Niño-southern OscillationMonsoon ClimatologyMonsoon DynamicsTropical Climate VariabilityEl Niño OscillationEl Niño-southern Oscillation CouplingEl Niño-southern Oscillation VariabilityEnso Decadal VariabilityEnso Frequency Variability