Rainfall Trend Analysis of Nagaland by using Mann - Kendall Test

Zaleto Medeo, Wangshimenla Jamir

Abstract: This study examined the impact of climate change on rainfall trend of Nagaland?s individual month, seasonal, and annual mean rainfall for 18 years (2004 - 2021). The non- parametric test Mann - Kendall?s and Sen?s slope estimator test is used to determine the rainfall trend and its magnitude. The result shows that some individual months, pre- monsoon, and monsoon seasons indicate a decreasing trend of rainfall while others show an increasing trend.

Keywords: Trend analysis, Mann ? Kendall test, Sen's slope estimator