Changes in atmospheric rivers in India in the summer monsoon season (JJAS, June-September) during 1951–2020. a Trend in the frequency of occurrence of ARs (%) during 1951–2020; b Trend in the summer monsoon season IVT anomaly (kg m ?1 s ?1). Solid lines in ( a, b) indicate the linear trend and 10-year moving mean, respectively; c Long-term (1951–2020) change in the frequency of ARs in India. Trend and change (trend slope multiplied by duration) were estimated using the non-parametric Mann-K...