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Faculty of Civil Engineering


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CONFERENCE PROCEEDINGS
5th INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVIL ENGINEERING 2017 , 2017.y., pp. 645-650


COMPARATIVE ANALYSIS OF METHODS FOR THE CALCULATION OF THE PAN COEFFICIENT
 
DOI: 10.14415/konferencijaGFS2017.069
UDC: 551.573
CC-BY-SA 4.0 license
Author : Milanović, Mladen; Trajković, Slaviša; Gocić, Milan
 
 Summary:
 Evapotranspiration and evaporation represent important parameters for a successful water resource management and other activities related to water and agricultural production. The pan evapotranspiration method is a method for the calculation of reference evapotranspiration (ET0), i.e. a method which directly links evaporation and ET0. This method uses the pan coefficient (Kp) and pan evaporation (Epan). It is widespread because of its simplicity, ease of data interpretation and application and suitability for locations with a limited availability of meteorological data. In this paper, six methods for Kp are compared with the tabular values of Kp proposed by Doorenbos and Pruitt. Six statistical tests were used for the comparison of methods. Based on the results of the statistical tests, the Snyder model has the greatest similarity to the Kp values, while the Abdel-Wahed and Snyder model has the greatest deviation.
 
 Keywords:
 reference evapotranspiration, pan coefficient, Snyder model, Abdel-Wahed and Snyder model.