Estimation of Sugar Cane Evapotranspiration Using Sybal Algorithm and Presly Taylor Method (Case Study of Amir Kabir Cultivation and Industry)

Document Type : Research Paper

Authors

1 ahvaz, iran

2 Assoiciated Professor, Water resource management, Shahid Chamran university of Ahvaz

3 Professor, Irrigation and drainage, Shahid Chamran university of Ahvaz

4 Professor, Water resource management, Shahid Chamran university of Ahvaz

Abstract

Agricultural water management studies require accurate information on actual evapotranspiration. This information must have sufficient spatial detail to allow analysis on the farm or basin level (Sanchez et al., 2008). The methods used to estimate evapotranspiration are grouped into two main groups, which include direct methods and indirect or computational methods (Alizade and Kamali, 2007). Basics of the indirect methods are based on the relationship between meteorological parameters, which impedes the use of these data with a lack or impairment. On the other hand, this information is a point specific to meteorological stations, and their regional estimates are another problem of uncertainty of their own. To this end, the use of remote sensing technology can be a suitable approach to address these constraints. Real evapotranspiration can be estimated by satellite imagery that has short and long wavelengths and is estimated using surface energy equations (Chihda et al., 2010). Examples of such algorithms include SEBAL (Bastiaanssen et al., 1998 Bastiaanssen, 2000;), METRIC (Allen et al., 2007), SEBS (Su, 2002). Among the above mentioned algorithms, energy billing algorithms have been used (Bagheriharooni et al., 2013; Teixeira et al., 2009). Among the factors of superiority of the SEBAL algorithm, in comparison with other remote sensing algorithms, is a satellite imagery analysis algorithm based on physical principles and uses satellite simulation and requires minimum meteorological information from ground measurements or air models (Bastiaanssen et al 2002).

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History

  • Receive Date: 22 February 2019
  • Revise Date: 17 August 2019
  • Accept Date: 14 September 2019
  • Publish Date: 20 October 2019

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