HYDROLOGIC ANALYSIS OF WATERSHED BY GENERATION OF RAINFALL INTENSITY DURATION FREQUENCY CURVES
Author(s):
M. Inayathulla , Mohammed Rafi
ISSN:
2349-6002
Cite This Article:
HYDROLOGIC ANALYSIS OF WATERSHED BY GENERATION OF RAINFALL INTENSITY DURATION FREQUENCY CURVESInternational Journal of Innovative Research in Technology(www.ijirt.org) ,ISSN: 2349-6002 ,Volume 6 ,Issue 7 ,Page(s):30-36 ,November 2019 ,Available :IJIRT148827_PAPER.pdf
Keywords:
Chi-square test, Daily Rainfall, Gumble’s distribution, IDF Curves, Normal distribution and Watershed
Abstract
Application of short duration rainfall is necessary in analysis, planning and design of natural storm drainage system. Present study is Markandeya watershed Belagavi District Karnataka. Geographically at a 75⁰52’08.77” to 76⁰22’16.66” E longitude and 13⁰10’50.77” to 13⁰27’39.95” N latitude. It covers an area 1028.38 sq.km. Daily rainfall data of 8 stations for the years 1988 to 2015 collected from Indian Meteorological Department (IMD). The IMD empirical reduction formula was used to estimate the short duration rainfall. The rainfall depth for various return periods were predicted using different probability distributions. The Chi-Square goodness of fit was used, to arrive at the best statistical distribution among Normal and Gamble’s distribution. Chi-Square showed that Normal distribution is the best probability distribution. The IDF curves were plotted for short duration rainfall of 5, 10, 15, 30, 60, 120, 720, 1440 minutes for a return period of 2, 5, 10, 25, 50 and 100 years for stations with peak rainfall values.
Article Details
Unique Paper ID: 148827

Publication Volume & Issue: Volume 6, Issue 7

Page(s): 30 - 36
Article Preview & Download




Go To Issue



Call For Paper

Volume 6 Issue 7

Last Date 25 December 2019


About Us

IJIRT.org enables door in research by providing high quality research articles in open access market.

Send us any query related to your research on editor@ijirt.org

Social Media

Google Verified Reviews

Contact Details

Telephone:8200 61 5067
Email: editor@ijirt.org
Website: ijirt.org

Policies