Author(s):

Sunil Kumar Yadav and Satyendra Nath

Abstract: The present research investigation was undertaken to work out the rainfall variability analysis at Barmer and Jaisalmer districts of Rajasthan. Daily rainfall data of 31 years (1986-2016) was used for weekly analysis to study the variability and the probability level of occurrence. The coefficient of variation and standard deviation for weekly, monthly and annual rainfall were computed for different districts. The normal onset of monsoon over different western districts of Rajasthan is between June to October. It was observed that the annual rainfall is higher at Barmer district (297.96 mm). The mean annual rainfall (214.02 mm) is lowest at Jaisalmer district and CV for the annual rainfall was examined, it was found be the least at Jaisalmer (55.77%) and highest in Barmer (58.24%).

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