Abstract:
This paper aims to analyze the trends in historical rainfall of Sagar district using
parametric and non-parametric approaches. The analysis is carried out using 45
years data (1960-2004) of four rain gauge stations located in different Tehsils
namely Sagar, Khurai, Rehli and Banda. Mann-Kendall analysis, Sen's slope
method and Linear regression method are used for the trend analysis. The analysis
is segregated into four parts, winter, monsoon, summer and annual rainfall.
The results show that the Khurai station has significant rising trend in rainfall
during the summer season while the Rehli station has significant falling trend
during the summer season. The trend detected by Mann-Kendall analysis and
Sen's method is also reflected in the linear regression approach. The magnitude of
Sen's slope and regression analysis have also been presented and discussed.
