Annual and seasonal rainfall analysis for 2013-2023 period in Gadag district, Karnataka

Abstract

< The present study assesses the variability of rainfall trends across the Hoblis of Gadag district. The required data for this study were collected from the Karnataka State Natural Disaster Monitoring Centre (KSNDMC), Bengaluru, Government of Karnataka, for the period from 2013 to 2023. The rainfall variability analysis at hobli level for Gadag district depicts low variability in the annual (34.42%) and South West monsoon (34.49%) rainfall data, while high variability was found in the pre-monsoon and NE monsoons. The annual rainfall and seasonal rainfall for SW monsoon and NE monsoon during past 10 years (2013-2023) at hoblis of Gadag district has shown increasing trend in the rainfall amount (17%) and rainy days (+ 23%). Among the hoblis, Gadag hobli received the highest amount of annual rainfall (687.97 mm) and recorded the highest rainy days (58 days) with lower variability (33.16%) which supports greater stability for cultivation. While, Konnur and Mundaragi hoblis received the lowest amount of annual rainfall (533.31 and 521.66 mm) and rainy days (47 days), suggesting the need for having more water harvesting structures and advanced water management strategies to reduce the risk of frequent crop failures.