Analysis of rainfall variability in western Rajasthan, India

Abstract

An attempt has been made to study the rainfall variability analysis of western districts of Rajasthan. Study was performed on data sets of annual rainfall for the period of1986-2016 (31year) for western districts of Rajasthan. The coefficient of variation and standard deviation for weekly, monthly and annual rainfall were also computed for selected districts. The normal onset of monsoon over different western districts of Rajasthan is between June to October. It was found that the annual rainfall is higher at Sikar district followed by Jalor and Pali. The mean annual rainfall is lowest at Jaisalmer. When the CV for the annual rainfall was examined, it was found be the least at Churu followed by Bikaner, Ganganager and Barmer it was the highest.