Rainfall Variability Analysis in Namakkal District, Tamil Nadu
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 6
Abstract
Climatic factor plays a major role in Indian agriculture in that rainfall play a key role. Being rainfall is the important factor for agriculture normally has to rely on secondary data. The study area taken for this analysis is Namakkal district of Tamil Nadu. The extent of the area is extends between 11000’ to 11036’10” north Latitudes and 77040’ to 78030’00” east longitudes. It is purely a semi arid region and agriculture normally depends on seasonal characteristics of rainfall. This study seeks to understand the rainfall behavior of the study area. The rainfall data used for this analysis is from 1980 – 2013. In this analysis rainfall variability has been calculated to find out the dependability of rainfall over the study area. From the analysis it is to be identified that Paramathy location has more than 50% of CV in both the monsoon season. To understand the long term changes in rainfall trend analysis has also been studied over the area. All the results got from the analysis has been mapped cartographically using GIS. It is a powerful tool for representation and analysis of spatial information related to rainfall analysis. The output has been prepared using Arc GIS 9.3.
Authors and Affiliations
Vinothkanna. S, V. Emayavaramban , K. Kannadasan
Keywords
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