Trend detection in Temperature and Rainfall over Rajasthan during the Last Century

Climate change studies in Rajasthan have been very few. This inhibits decision making and sustainable risk reduction strategies. The present paper intends to fill up some of the research lacunas. It analyses the spatio-temporal variation of seasonal maximum, minimum temperatures and rainfall conditions with an assemblage of monthly data for the years 1901–2002 in Rajasthan obtained from the CRU TS 2.1 dataset. It also uses Mann-Kendall trend test to identify climate change scenarios existing in the region. The result shows significant increase in temperatures and decrease in monsoon rainfall in most parts of the state. The analysis also showed a delayed onset of monsoon resulting in increase in post monsoon rainfall. The analysis was mapped to assist in decision making and risk reduction measures.