Question

In the context of the El Niño-Southern Oscillation (ENS

  • O cycle and its bearing on Kharif preparedness reviews, which of the following statements is correct?
A El Niño refers to periodic warming of the central and eastern Pacific Ocean and is historically correlated with a weaker or delayed Indian south-west monsoon
B El Niño refers to periodic cooling of the central and eastern Pacific Ocean and is generally associated with a stronger Indian south-west monsoon
C La Niña refers to periodic warming of the central and eastern Pacific Ocean and is generally associated with a weaker Indian monsoon
D ENSO has only two phases — El Niño and La Niña — with no neutral phase recognised by the IMD
E El Niño and La Niña occur simultaneously every alternate year as part of a fixed biennial cycle
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