Author(s)

Suman Bera

Department of Geography and Environment Management, Vidyasagar University, Midnapore, India.

Shortage of water in the river in relation to rainfall change plays a pivotal role in water sharing like Ganga. In attempt to understand the rainfall changes, Mann-Kendall test and Sen’s slope estimation on hundred years’ (1901-2000) rainfall data of 236 districts in entire Ganga basin were run. Half of the districts showed a decreasing trend in annual rainfall in which 39 districts were statistically significant. During pre-monsoon (Jan.-May), 78% of the total districts showed the decreasing trend with the significance of 54 districts. A majority of the districts under the Kosi, Gandak and Sone sub-basins showed the significant negative trend in annual, pre-monsoon and post-monsoon season. So, there need some districts’ and sub-basins’ wise strategies to cope with the situation in the context of climate change.

Mann-Kendall Test, Sen’s Slope Estimator, Climate Change

Bera, S. (2017) Trend Analysis of Rainfall in Ganga Basin, India during 1901-2000. American Journal of Climate Change, 6, 116-131. doi: 10.4236/ajcc.2017.61007.