ABSTRACT

An attempt has been made to examine the rainfall characteristics, pattern and distribution of Nashik district of Maharashtra state, India. The paper aims to analyze the spatio-temporal variation of Annual Average Rainfall (AAR) of 20 years (2000-2020) of Nashik district. For that monsoonal rainfall data of Nashik district for 15rainguage stations have been considered. From that data average rainfall data (for 20 years) of the study area have been calculated and presented by graphical method which shows that high rainfall experienced in 2006 within 20 years timespan and followed that 2019.Station wise AAR also depicted through graph which shows that the distribution of rainfall is mostly uneven and highly influenced by the physiography of the region, Igatpuri station recorded maximum rainfall (3118.11 mm) and Deola recorded minimum rainfall (497.44 mm.). From data Rainfall Trend Analysis (RTA) has been plotted which shows irregular trend of rainfall. Year-wise and station wise AAR shows highest rainfall record in 2006 (1745.3 mm) followed by 2019 (1648 mm.). Within 20 years period the lowest average annual rainfall was recorded in 2015 (592.2 mm.).From the calculated data tehsil wise AAR map also has been formed which reveals the western part of the study area receives the highest rainfall (>1000 mm), middle region receives moderate rainfall (600-1000 mm) and in eastern part it become erratic and low (< 600 mm).The result shows that study area has spatio-temporal variability of rainfall due to western ghat at western side. This significant knowledge about rainfall Characteristics are useful for water resource planning and management for Nashik district. Keywords: Rainfall distribution, Average Annual Rainfall, Spatio-temporal variability, Nashik District
Publication date: 15/01/2022

https://ijbpas.com/pdf/2022/January/MS_IJBPAS_2022_JAN_SPCL_1012.pdf

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https://doi.org/10.31032/IJBPAS/2022/11.1.1012