Climate Change and Rainfall Distribution in Tirupati District: An Urban & Rural Analysis Using Geospatial Technology

The study focuses on the rainfall distribution in Tirupati district, Andhra Pradesh, with an emphasis on the implications of climate change on agricultural practices and water resource management. Focusing on 2000, 2010 and 2025. Secondary data from the Indian Meteorological Department, which provides high-resolution gridded rainfall datasets, are used to analyze rainfall patterns across all 36 mandals of the district. The methodology employs Geographic Information System techniques and standard statistical tools to evaluate rainfall variability and its implications for agriculture and water resource management.
The results indicate considerable temporal variability in rainfall patterns. In 2000, the district primarily experienced moderate rainfall (826-894 mm), supporting agricultural stability. By 2010, rainfall levels increased, resulting in both low (1200-1320 mm) and high (1460-1580 mm) categories, which suggests a shift toward more extreme weather conditions. Projections for 2025 indicate a slight decrease in moderate rainfall (1250-1410 mm) and an increase in high rainfall events (1420-1570 mm), raising concerns regarding flooding and water resource management. The analysis identifies distinct trends between urban and rural areas. Tirupati Urban exhibits increased rainfall variability, reflecting the influence of urbanization and climate change. In contrast, rural areas have experienced significant increases in both moderate and high rainfall categories, presenting challenges for agricultural practices and water resource management. The study highlights the need for modified adaptation strategies to address the specific challenges posed by changing rainfall patterns in both urban and rural contexts.

Climate Change, Rainfall (mm), Urban, Rural, Environment & GIS

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