Abstract
ANALYTICAL REVIEW OF METHODS FOR CALCULATING EVAPORATION FROM A WATER SURFACE
*Sami Hassan Elsayed Taglawi
ABSTRACT
Evaporation loss is an important issue in hydrology. Any water project especially in arid and semi-arid regions must consider evaporation in planning, design, and operation. Because of the importance of the evaporation in hydrological cycle and water budget in addition to the different methods used to calculate it, the significance of studying these methods. The paper dealt with research and analysis on the different methods of measuring evaporation, in which an overview of the method, the scientist who created it, in addition to the scientific analysis of the method, the modifications made to it by other scientists, the conditions of use, the problem in each method and the methods of calculating the coefficients involved in it. The paper also dealt with the accuracy of each method in calculating evaporation. The methods of measuring evaporation that the paper touched upon are Water balance, Evaporators and evaporating basins, Heat balance, Turbulent diffusion, and Empirical formulas. The paper gives a good analytical review of the mentioned methods. An analytical review was done of these methods by discussing uses, applications, and problems faced by these methods.
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