Irrigation Sciences and Engineering

Irrigation Sciences and Engineering

Investigation and Sensitivity analysis of experimental methods for estimating evaporation from free surface of Choghakhor lake

Document Type : Research Paper

Authors
Mahdi Salami 1
Behzad Ghorbani 2
Mahdi Radfar 3
Hosein Samadi Borojeni 2
1 PhD Student. Department of Water Engineering, Shahrekord University, Shahrekord, Iran.
2 Associated Professor , Department. of Water Engineering, Shahrekord University, Shahrekord , Iran.
3 Assistant Professor, Department of Water Engineering, Shahrekord University, Shahrekord, Iran
10.22055/jise.2018.24278.1720
Abstract
Evaporation losses from free surface water in reservoir dams are one of the important processes in meteorology and hydrology. Each experimental methods estimates the evaporation based on the climatic conditions of each region. For this reason, calibration of the relationship between evaporation estimates in different regions are required (Vanzyl et al., 1989). experimental methods are common in engineering sciences. Most scholars, by modifying experimental methods and discovering new relationships, try to find a simple and high-level relationship to replace with the field methods. More than 50 experimental relationships have been proposed for estimating evapotranspiration by various researchers (Naorem and Devi, 2014). Despite the importance of evaporation in hydrology, less attention has been paid to it. However, with the correct estimation, it can be applied in water resource planning with fewer errors (Saadatkhah et al., 2002).
In this research, the experimental methods of Mayer, Marciano, Shahthin, Henfer, Ivanov and USBR have been used to study the evaporation from the free surface of the Choghakhor lake, located in Chaharmahal and Bakhtiari province of Iran. The results have been compared with actual evaporation values from the free surface.
Keywords
Sensitivity analysis
evaporation
free water surface
Choghakhor lake
Subjects
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Irrigation Sciences and Engineering
Volume 45, Issue 3
Autumn 2022
Pages 31-45

  • Receive Date 17 December 2019
  • Revise Date 14 September 2021
  • Accept Date 15 September 2021
  • Publish Date 23 October 2022