Vol. 11 (4 & 5) : July-October 2020 Issue
Green Farming Vol. 11 (4 & 5) : 367-373 ; July-October 2020
Rainy days analysis by using normal, binomial distribution and discrete probability for Bharuch district of South Gujarat
NEERAJ KUMARa1*, S.K. CHANDRAWANSHIb2, M.J. ZINZALAa3, A.L. CHALODIAc4, B.M. MOTEd5 and G.G. RADADIAe6
aDepartment of Agronomy, College of Agriculture, Navsari Agricultural University, Bharuch - 392 012 (Gujarat) bKrishi Vigyan Kendra, Pipraudh - 483 442, Dist. Katni (JNKVV, Jabalpur) (Madhya Pradesh) cMain Sorghum Research Station, Navsari Agricultural University, Surat - 390 007 (Gujarat) dDirectorate of Research Office, Navsari Agricultural University, Navsari - 396 450 (Gujarat) eDept. of Soil & Water Engg. N.M. College of Agricul., Navsari Agricultural University, Navsari - 396 450 (Gujarat)
Designation : 1Assistant Professor *(neeraj34012@gmail.com), 2SMS, 3Research Associate **(zinzalamanish99@gmail.com), 4Assistant Research Scientist, 5Assistant Professor, 6Professor
Subject : Agronomy and Crop Production
Paper No. :
Total Pages : 7
Received : 18 June 2020
Revised accepted : 12 July 2020
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Citation :
Kumar, Neeraj,. Chandrawanshi, S.K., M.J. A.L., Zinzala,. Chalodia,. Mote, B.M. and Radadia, G.G. . 2020. Rainy days analysis by using normal, binomial distribution and discrete probability for Bharuch district of South Gujarat. Green Farming Vol. 11 (4) : 367-373 ; July-October, 2020.
ABSTRACT
The analysis of standard weekly rainy days reveals the rainfall is not equally distributed during SW 32, 34, 40, 45, 16 and 47, so that the test of binomial distribution is a good fit. Monsoon season rainfall data of Bharuch reveals that the normal distribution at 10, 20 and 30 % probability levels for the month of June, July, August and September shows the possibility of increasing rainy days occurrence. The Bharuch districts during post-monsoon season rainfall of months of October and November reveals decreasing tendency. The binomial distribution fit only those standard weeks in which rainfall is not equally distributed. The standard weekly rainy days analysis of binomial distribution on chi-square test in Bharuch was found that standard week (SW) 25 only 10 % of monsoon season and in post-monsoon standard week (SW) 42 and 47 shows non-significant (5 and 10 % level of significant) result, but SW 25 found significant at 5% level. The result reveals that the monsoon season of Bharuch standard weeks 22 to 39 except from 25 and post-monsoon 40, 41, 43, 44, 45 and 46 shows significant result. From above results observed that the rainfall distribution is not equally distributed so test of binomial distribution at above given standard week is a good fit. The data also shows that, decreasing tendency in rainfall was observed in Bharuch district.
Key words :
Discrete probability, Gaussian distributions, Rainy day analysis, Trend analysis.
