The Modelling of Potential Evapotranspiration Based on Climate Data Using Empirical and Heuristic Methods

Mehmet Muzaffer Sandalc? ()
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Mehmet Muzaffer Sandalc?: Department of Engineering, K?rklareli University, Kayal? Campus

No 14816441, Proceedings of International Academic Conferences from International Institute of Social and Economic Sciences

Abstract: The aim of this paper titled ?The Modelling of Potential Evapotranspiration Based on Climate Data Using Empirical and Heuristic Methods? is to estimate the potential evapotranspiration in the Ergene Basin, Turkey. Accurately observing the amount of total evapotranspiration in any given region usually is a perilous task given the fact that setups to directly observe evapotranspiration are costly build and highly effort-inducing to operate. Therefore, calculating the potential evapotranspiration of a region by using the FAO-56 Penman-Monteith formula instead of observing directly is preferred. However, FAO-56 PM formula requires a lot of different data sets, which may not be accessible in various regions, to effectively utilize. For this reason, scientists have been researching different methods to calculate potential evapotranspiration without the need for numerous climate data sets. In this paper, in the first step, reference evapotranspiration was calculated using the FAO-56 PM empirical formula. In the second step, potential evapotranspiration was calculated using the Blaney-Criddle empirical formula. In the third step, climate data including Rs, E, Tmax, Tort, Tmin, and Sh were used to calculate potential evapotranspiration using the MARS and GMDH heuristic methods. Among these methods, the GMDH method combining Rs, E, Tmax, Tort, Tmin, and Sh yielded the best performance with performance criteria of R2= 0.9846, MSE=49.07, MAE=5.56, and AARE=7.23 compared to the reference evapotranspiration.

Keywords: Evapotranspiration; FAO-56; Blaney-Criddle; Heuristic Methods; Ergene Basin (search for similar items in EconPapers)
JEL-codes: C51 C52 (search for similar items in EconPapers)
Pages: 19 pages
Date: 2024-10
New Economics Papers: this item is included in nep-ara and nep-env
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Published in Proceedings of the Proceedings of the 63th International Academic Conference, Prague, Oct 2024, pages 42-60

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