Frequency Analysis of Low-Flows in the Large Karoun River Basin in Iran

Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 4, Issue 1

Abstract

Frequency analysis is one of the suitable statistical methods in assessing the amounts of low-flow in various return periods which could be obtained using statistical distribution theories and choosing proper probability law or distribution function. The purpose of this study is a frequency analysis for low-flows of Karoun, Dez, and the Large Karoun river basin in Iran , find the dominant probability distribution functions and the low-flows' values until their behaviors in 1-day to 30-day periods could be determined. The observed statistics and information from three hydrometric stations were used in this investigation, namely, Polshaloo as the inflow to the Karoun-3 storage dam, Talezang as the inflow to the Dez storage dam, and Ahvaz as the performance location of the Large Karoun system. The results from this study showed the low-flow generation in Karoun basin (Polshaloo) and the Dez basin (Talezang) are closed together in low probabilities. Analysis of daily to monthly low-flows of the Large Karoun River in Ahvaz station varies between 190 to 250 m3/s. These values for 80% frequencies are between 143 to 183 m3/s. The time series analysis of 1-day to 30- day low-flows of this station shows that flow during the first 15-year period prior 1969 had been normal and during the following years it was affected by the basin’s soil and water resources development plans.

Authors and Affiliations

kazem Hamadi| Department of Basic Sciences of Water Resources, Khouzestan Water and Power Authority, Iran., Samaneh Abdovis| Department of Basic Sciences of Water Resources, Khouzestan Water and Power Authority, Iran., Narges Zohrabi*| Department of irrigation, Science and Research Branch, Islamic Azad University, Khouzestan –Iran.n.zohrabi@khouzestan.srbiau.ac.ir

Keywords

Related Articles

The Art of Nezamis Fiction Narrating in Khosro and Shirin

The great poet of Ganjeh, Hakim Nezami Ganjavi, undoubtedly was so creative and innovative in the re-narrating the stories having mostly historical roots that passing the time remove no value of him and his masterpieces....

Kyoto Protocol and zero energy buildings design

The rate of climate change was very horror which public notions state the necessity of decreasing Greenhouse gases emissions in international conferences and covenants.Kyoto Protocol has28 articles and 2 appendixes. In...

The Effectiveness of Self-Directed-Learning Method in Teaching Speaking Skill to Iranian EFL Learners

It is generally agreed today that, the mastery of speaking skills in English is a priority for many schools and second language learners so how best to approach and develop this skill has long been the focus of methodolo...

Investigation of Seed Germination and Seedling Characteristics of Safflower Variety Under Salt Stress Conditions

In order to study the effect of salinity stress on germination and early seedling growth of six safflower genotypes namely FERAMAN, SINA, KM12, KM19, SIRIN and Kose by using five concentrations of NaCl (0, -0.3, -0.5, -1...

The History of Changing Punishments in Sexual Crimes with Consideration of New Islamic Punishment Laws

From far past human being tried to consider the most severe punishments for sexual crimes. Analyzing the approved laws related to sexual crimes we will see that what are the criminal policies that lawmaker selected again...

Download PDF file
  • EP ID EP5286
  • DOI -
  • Views 382
  • Downloads 16

How To Cite

kazem Hamadi, Samaneh Abdovis, Narges Zohrabi* (2013). Frequency Analysis of Low-Flows in the Large Karoun River Basin in Iran. International Research Journal of Applied and Basic Sciences, 4(1), 146-151. https://europub.co.uk/articles/-A-5286