Application of Shannon entropy in determining the most effective chemical parameter in surface water quality (Case study: Sofi Chay watershed).

Akhoni Pourhosseini, Fatemeh; Ghorbani, Mohamad Ali

Document Type : Research Paper

Authors

¹ Post Graduate of Water Resources Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran

² Associate Professor, Department of Water Engineering, Faculty of Agriculture, Tabriz University, Tabriz, Iran

Abstract

Because of scarcity of surface water, consideration of water quality is a very important issue in Iran. Surface water quality monitoring and assessment is very expensive and time consuming; Therefore, finding a cheap, simple, and relatively exact method which can predict water quality would be very useful. In this study, Water Quality Index was used for measuring water quality. In order to monitor surface water quality and calculating the water quality, the data of six quality survey stations in SofiChay watershed during the period 1972-2012 were used. To determine the influencing parameter on the surface water quality within the watershed, the Shannon weight entropy method was used. Based on the amount of Shanon entropy and the calculated entropy weight, the effective parameter was evaluated in six stations: Tazekand, khormazard, Esfestanaj, Kahlikdarasi, Maragheh, and Khekan. The results indicated influencing parameters at the stations studied are pH, Mg, TDS, EC, and HCO3 respectively. Calculating the water quality index through using Shannon entropy indicated excellent quality of surface waters of the study area.

Keywords

Main Subjects

water resource management

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Environment and Water Engineering

Application of Shannon entropy in determining the most effective chemical parameter in surface water quality (Case study: Sofi Chay watershed).

References

References

Volume 2, Issue 4 - Serial Number 5
December 2016
Pages 322-332

Application of Shannon entropy in determining the most effective chemical parameter in surface water quality (Case study: Sofi Chay watershed).

References

References

Volume 2, Issue 4 - Serial Number 5December 2016Pages 322-332

Volume 2, Issue 4 - Serial Number 5
December 2016
Pages 322-332