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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(4): 3053-3062
DOI: https://doi.org/10.20546/ijcmas.2018.704.346


Statistical Distribution of Seasonal Rainfall Data for Rainfall Pattern in TNAU1 Station Coimbatore, Tamil Nadu
S. Lavanya1*, M. Radha1 and U. Arulanandu2
1Agricultural Statistics, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
2Statistics, Anbil Dharamalingam Agricultural College and Research Institute,
Trichy, Tamil Nadu, India
*Corresponding author
Abstract:

Rainfall plays an important role in agricultural production system. Studying the rainfall distribution through the statistical models is also essential in agricultural field. In this paper, an attempt has been made to show the pattern of rainfall in TNAU1 Station Coimbatore through the Statistical distributions. In the study, the different statistical distributions are fitted for seasonal rainfall data and the best fit is determined. The historical rainfall data were collected for 34 years (1982 -2015) from the Meteorological Observatory AC & RI Coimbatore. The statistical distributions like Normal, Log-normal, Weibull, Gamma, Logistic, Exponential and Generalized Extreme value (GEV) are used for three different seasons such as Kharif, Rabi and summer. For Parameter estimation the Method of Maximum Likelihood are used here. The Comparisons of best distributions by goodness of fit-tests such as Kolmogorov–Smirnov, Anderson Darling test and Chi square test are also made in this paper. The trend test such as Mann Kendall trend test and Sen’s slope estimation were performed for studying the rainfall pattern. The Maximum rainfall occurred in the Rabi season with 9.028 (mm) and minimum rainfall in the summer with 0.371 (mm).


Keywords: Seasonal rainfall, Statistical distributions, Goodness of fit–test, Mann Kendall trend test, Sen’s slope estimator
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How to cite this article:

Lavanya, S., M. Radha and Arulanandu, U. 2018. Statistical Distribution of Seasonal Rainfall Data for Rainfall Pattern in TNAU1 Station Coimbatore, Tamil Nadu.Int.J.Curr.Microbiol.App.Sci. 7(4): 3053-3062. doi: https://doi.org/10.20546/ijcmas.2018.704.346