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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 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(5): 2450-2462
DOI: https://doi.org/10.20546/ijcmas.2020.905.281


Estimation of Probable Maximum One Day Duration Rainfall for Khurda Region
Geetanjali Dhupal1* and Sidhartha Sekhar Swain2
1Centurion University of Technology and Management, R Sitapur,
Paralakhemundi, Odisha, 761211, India
2Indian Agricultural Research Institute, Division of Agricultural Engineering,
New Delhi, 110012, India
*Corresponding author
Abstract:

The knowledge of probable maximum one day rainfall for a given region corresponding to return periods varying from 2 to 100 years is essential for crop planning and designs of minor and major hydraulic structures. The probability analysis for maximum one day rainfall of Khurda region is done by different probability distribution methods (log normal 3-parameter, pearson method, log pearson, weibull, generalized pare to distribution and log normal) by taking the rainfall data of 25 years(1991-2015) through FLOOD - frequency analysis software. Amongst them, log-normal 3-parameter method was found to be best fit based on chi-square and RMSE values 4.5 and 0.03328 respectively. The rainfall at 90%, 75%, 50%, 25% and 10% probability levels are determined. The plotted position of maximum one day precipitation was also tested through Chow method. The designed return period is calculated through Gumbel’s equation. The observed one day maximum rainfall during period of analysis is 400.3 mm with standard deviation and co-efficient of variation 71.06 mm and 0.552 mm respectively. The values of maximum precipitation by log-normal 3-parameter method and Chow frequency factor method are very close to each other and from these two methods, either can be implemented for design of different soil and water conservation structures.


Keywords: Probable maximum precipitation, Return period, Probability distribution, Standard deviation
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How to cite this article:

Geetanjali Dhupal and Sidhartha Sekhar Swain. 2020. Estimation of Probable Maximum One Day Duration Rainfall for Khurda Region.Int.J.Curr.Microbiol.App.Sci. 9(5): 2450-2462. doi: https://doi.org/10.20546/ijcmas.2020.905.281