The vulnerable north eastern states of India — which bear a significant brunt of the global climate change phenomena — have finally got some serious attention from climate scientists. The eight states, least studied so far, have been thoroughly analysed over a 34-year period in a new study.1 Based on the trends observed from 1971 to 2005, the scientists predict a rise in the regional annual mean temperature as well as mean rainfall in future.
The mega study, led by Sushil Kumar Dash of the Centre for Atmospheric Sciences at the Indian Institute of Technology Delhi, looked at present‐day climatic conditions prevailing in the region. The team examined the regional trends based on actual observations at the meteorological stations of India Meteorological Department (IMD) and on the gridded data.
The eight states – Assam, Arunachal Pradesh, Tripura, Nagaland, Manipur, Mizoram, Meghalaya and Sikkim – were studied for the two most important climatic parameters – temperature and rainfall. The region is blessed with ample monsoon rains and houses the world’s wettest place Mawsynram, which receives an annual rainfall of about 1187.3 cm.
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