Abstract
AbstractWe proposed a new objective criterion for discerning breaks in Indian summer monsoon rainfall, which is based on grid‐level rainfall threshold. The identified breaks reproduced all well‐known breaks discussed in the literature, but are relatively fewer in number. The correlation analysis between the number of break days and all‐India seasonal rainfall is not only high (R2 = −0.77) but also reproduced well‐known association between El Nino and bad monsoon years. The fraction of seasonal rainfall in break days is found to be smaller (<10%) over most part of India than earlier studies, indicating that the discerned spells are valid for a large part of India.
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