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Climate can be defined from average of long term meteorological parameters of the region but to understand climate change extreme values are more helpful. World Meteorological Organisation has identified indices related to extreme rainfall which have impacts on health, agriculture and food security, water resources and hydrology sectors. Vadodara (22.28 N, 73.19E) is the third largest city of Gujarat and eighteenth largest city of India with urban population greater than 1.6 million. Daily rainfall data for Vadodara station from 1961-2016 is collected from State Water Data Centre, Gandhinagar. Annual trends for heavy precipitation days (R10mm, R20mm), extreme precipitation days (R95P), Contribution of extreme precipitation in annual rainfall (R95PT) annual total wet-day precipitation (PRCPTOT), consecutive dry days (CDD), consecutive wet days (CWD), one day maximum rainfall (Rx1), maximum consecutive 5-day precipitation (Rx5) and Standardized Daily Intensity Index (SDII) for the study period were calculated with Mann Kendall test. Generally increasing trend is observed for all indices except CWD, CDD and R95p where no trend is observed. Observed annual magnitudes of one day & five days maximum rainfall (Rx1day and Rx5days) are increasing significantly (p value < 0.05). Daily rainfall intensity (SDII) also shows significant increasing trend. All the indices indicate that high rainfall with shorter duration is increasing for Vadodara city. The observed trends of extreme indices confirm the impact of climate change on rainfall pattern of Vadodara.
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