ANALYSIS OF RAINFALL INTENSITY OF KUNIGAL TALUK, TUMKUR DISTRICT, KARNATAKA USING GIS TECHNIQUES

Nandeesha, Ravindranath.C, Shanthibhushan.S

Abstract: Land, water and soil are limited natural resources and their wide utilization with increasing population is a major area of concern. to mitigate the demand and supply gap between resources and ever increasing demand, it is of prime importance to conserve the natural resources with proper prioritization for its sustainable development. The present work mainly analysis of rainfall intensity for Kunigal Taluk. The study area of Kunigal taluk is located in southern part of Tumkur district in Karnataka state. The taluk covers an area of 981 Sq.km. and average rainfall of 802mm . The area is bounded by the latitude North 120 44’38.74” to 130 8’1.16” and the longitude East 760 49’ 43”to 770 9’ 57”. The main part of the area is covered under Survey of India (SOI) Toposheet numbers 57 C/16, 57 G/4, 57 D/13, 57 C/12, 57 D/9, and 57 H/1 (Scale 1:50,000) and having eight rain gauge stations each rain gauge stations of monthly of pre monsoon, south west monsoon and north east monsoon rainfall data is analyzed from 1901-2011. The study of uneven distribution of rainfall causes scarcity fresh water/potable water, agriculture purpose, etc. The water table fluctuation under the influence of rainfall and drought. The rain fall data is analyzed by time series and its components, and by conventional methods. Here we are mainly discussing about rainfall data and its intensity throughout the year, and water table fluctuation data by graphical method, and using software for the analysis of the rainfall to know variation of its value across a vast area in a systematic manner using Arc view 3.2a software and DBF files.

Keywords: Rain gauge station, time series, water level fluctuation, Arc view 3.2a etc…

DOI: https://doi.org/10.15623/ijret.2014.0318021