A recent study published in “Environmental Research Letters” studied the rainfall patterns of the past 119 years and found that the rainfall trend in Cherrapunji has decreased.
Rainfall Decreased in Cherrapunji Study in Environmental Research Letters
25 February 2021 Current Affairs:A recent study published in “Environmental Research Letters” studied the rainfall patterns of the past 119 years and found that the rainfall trend in Cherrapunji has decreased and Mawsynram (both in Meghalaya) is now the wettest place. The team is currently studying changes in rainfall patterns across India.
♦ The team analyzed the daily rain gauge measurements from 1901 to 2019 and pointed out that changes in the temperature of the Indian Ocean had a huge impact on rainfall in the northeast.
♦ They also analyzed satellite data and added that in the past two decades, the vegetation area in northeastern India has decreased, which implies that human influence also plays an important role in changing rainfall patterns.
♦ The analysis shows that the vegetation is reduced and 104.5 square kilometers is lost every year. On the other hand, during the period 2001-2018, arable land (182.1 square kilometers per year) and urban and construction land (0.3 square kilometers per year) have increased significantly.
♦ Nowadays, the traditional farming method called Jhum farming or crop rotation has been reduced and replaced by other methods. In addition, previous studies have pointed out that there is a lot of deforestation in the area.