In an alarming research, a team of scientists at Stanford University have identified significant changes in the patterns of extreme wet and dry events that are increasing the risk of drought and flood in central India. The team, which includes two Indian-origin researchers, reveal that the intensity of extremely wet spells and the number of extremely dry spells during the south Asian monsoon season have both been increasing in recent decades.

"We are looking at rainfall extremes that only occur at most a few times a year, but can have very large impact," said senior author Noah Diffenbaugh, an associate professor at the Stanford Woods Institute for the Environment. For the new study, Diffenbaugh and graduate student Deepti Singh collaborated with Bala Rajaratnam, an assistant professor of statistics and environmental earth system science.

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