ABSTRACT

The ramifications of climate change are the main emphasis of this study, which looks at the long- term patterns and geographical distribution of precipitation in Karnataka, India, from 1958 to 2020. Seasonal and annual rainfall patterns were examined using TerraClimate data, and Sen's Slope estimator and the Mann-Kendall test were used to find important trends. Karnataka has very variable rainfall, both in terms of location and time. The majority of the yearly precipitation falls during the monsoon season, which runs from June to September, according to the analysis. Because of the Western Ghats' orographic effects, the study area exhibits a notable variance in the distribution of rainfall. Seasonal analysis shows that the post-monsoon and winter seasons have little effect on the state's water supplies, however the southwest monsoon has a major impact. Planning policies, managing water resources, and agriculture are all hampered by this variability.The results highlight the need for adaptive methods to lessen the negative effects of climate change on Karnataka's water availability and agricultural productivity. Policymakers and other stakeholders can use the study's insightful recommendations to create sustainable water management strategies in response to shifting precipitation patterns. Keywords: Precipitation, Spatial and Temporal analysis, Mann-Kendall test, Sen-Slope
Publication date: 01/10/2025

https://ijbpas.com/pdf/2025/October/MS_IJBPAS_2025_9472.pdf

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https://doi.org/10.31032/IJBPAS/2025/14.10.9472