May 27, 2016

What is going on with India’s weather?

arah Perkins-Kirkpatrick, Andrew King, and Geert Jan van Oldenborgh
The Conversation
Too hot to step out. Photo: Amit Dave, Reuters
Too hot to step out. Photo: Amit Dave, Reuters

A study published in 2013 analysed annual trends in extremes and found no significant change in the intensity of extreme Indian temperatures between 1951 and 2010.[1] The high levels of local air pollution were probably behind the lack of change.

However, the study found a significant increase in the frequency of extreme temperatures and a remarkable trend in the duration of warm spells in India, as the map below shows. Warm spells, defined as at least six days of extreme temperatures relative to the location and time of year, increased by at least three days per decade over 1951-2010 – the largest trend recorded globally