Drought Frequency and Severity in the Tahsils of Ahilyanagar (Ahmadnagar)) District: A Four-Decade Statistical Analysis

Dr. Chandrabhan Bhanudas Chaudhari

Abstract: This study presents a comprehensive analysis of drought frequency and severity across 14 Tahsils of Ahilyanagar (Ahmadnagar) District, Maharashtra, over a 44-year period (1981-2024). Using IMD?s standardized deficit classification criteria, we identified and characterized 25 severe drought events and 107 moderate drought events across the district. Parner Tahsil emerged as the most drought-vulnerable with 5 severe drought occurrences (11.4% frequency), while Sangamner, Kopargaon, and Rahata experienced no severe droughts despite lower average rainfall. The study reveals distinct spatial patterns in drought vulnerability, with southern and central Tahsils experiencing higher severe drought frequency compared to northern Tahsils. Temporal analysis indicates drought clustering in specific years (1985-86, 2003, 2012, 2017-19), suggesting systematic rainfall failures during these periods. The research provides critical insights for drought preparedness, water resource management, and agricultural adaptation strategies in this semi-arid region.

Keywords: Drought severity, rainfall deficit, spatial vulnerability, temporal patterns, Ahilyanagar (Ahmadnagar) District

How to Cite?: Dr. Chandrabhan Bhanudas Chaudhari, "Drought Frequency and Severity in the Tahsils of Ahilyanagar (Ahmadnagar)) District: A Four-Decade Statistical Analysis", Volume 14 Issue 12, December 2025, International Journal of Science and Research (IJSR), Pages: 272-278, https://www.ijsr.net/getabstract.php?paperid=SR251203202535, DOI: https://dx.doi.org/10.21275/SR251203202535