Climate Change Analysis of Chambal River up to Gandhi Sagar Dam

Abstract

The rainfall is an important component in water management. The phenomenon of climate change is expected to change the rainfall patterns over the globe. The climate change is a phenomenon that has triggered in the last century due to global warming. The detection of trend in rainfall pattern within the statistical framework is a common discipline of studies over the decades. Present study is aimed to analysis of rainfall trend in the Chambal River Basin up to Gandhi Sagar Dam in the state of Madhya Pradesh in India. The catchment area of the Dam is 22,584 km2 and the dam is situated at the Border of the States of Rajasthan and Madhya Pradesh. The main aim of the trend analysis is to assess the monsoon pattern in occurrence of rainfall. The data for the analysis was collected for about forty two years for 7 stations in the catchment. The Mann-Kendall test was used to examine monthly rainfall data from 1971 to 2013. And for Sen's slope methods for estimating slope XLSTAT was used to conduct the analysis. The computed trends for the rainfall indicated mixed results. Study also calculated the Sen's Slope factor (Q). For precipitation data from seven stations, the null hypothesis is evaluated at a 95% confidence level. In addition to comparing the Mann-Kendall test findings, MS EXCEL 2013 is used to plot linear trend lines for each station.