Vol. 10, Special Issue 10 (2021)

Author(s):
Sweeti Kumari, Rahul Kumar, Jubuli Sahu, Santosh Kumar and RK Sohane

Abstract:
This study examines effect of climate change on rainfall variability for the periods of 2014 to 2020 in Katihar district, Bihar. It indicates that for the past Seven years the effect of climatic variability on the annual rainfall distribution upto 2019 is not obvious because of little gap in the mean values but there is positive deviation in annual rainfall within the interval of seven years. Climate change is change in weather pattern for a significantly long period. One of the major impacts of climate change is variation in rainfall pattern which directly or indirectly affects the regional water resources. This study examines effect of climate change on rainfall variability, total annual rainfall for the periods under consideration were collected by observing the last seven years rainfall data we found that the annual avg. rainfall of the district was 1089.2 mm, 1099.7 mm, 1025.2mm, 1026.9 mm, 732.9 mm,1218.7 mm and 1631.92mm against the avg. normal rainfall i. e 1281 mm in the year 2014, 2015, 2016, 2017,2018,2019 and 2020 respectively -14.79%, -14.15%, -19.96%, -19.90%, 42.78,-4.91 and +27.39% deviation observed in previous seven year i.e 2014, 2015, 2016, 2017,2018,2019 and 2020.