Comparison of Evolutionary Computation and Empirical Penman-Monteith Equation for Daily and Monthly Reference Evapotranspiration Estimation in Tropical Region

  • Saiful Farhan Mohd Samsuri Universiti Teknologi Malaysia (UTM) Skudai Johor, Malaysia
  • Robiah Ahmad UTM Kuala Lumpur,
  • Mohd Zakimi Zakaria Universiti Malaysia Perlis (UniMAP)
Keywords: Evapotranspiration, System Identification, Evolutionary Computation, Crop Water Estimation

Abstract

Evapotranspiration is the combination of evaporation and transpiration processes that give means the process of water loss to the atmosphere. Reference evapotranspiration (ETo) estimation is part of water cycle that importance for planning and management of irrigation purposes and water resource systems. Due to its importance, the accurate modeling of ETo is of vital importance to estimate crop water requirement and its availability. This research presents a system identification and differential evolution approach by using Differential Evolution and System Identification (DESI) and Modified Genetic Algorithm (MGA) approach for modeling daily and monthly ETo in peninsular of Malaysia. The data set comprising air temperature, humidity, wind speed, and solar radiation was utilized for estimating ETo using FAO56 Penman Monteith (PM) equation as the reference. The modeling results were analyzed and compared with the traditional Penman Monteith method. Based on the analyses, the approach used was found that the models of ETo is adequate and understandable, and suited to estimate the dynamics of the evapotranspiration process. The performance of the model is comparable with that of the PM method.

Author Biographies

Saiful Farhan Mohd Samsuri, Universiti Teknologi Malaysia (UTM) Skudai Johor, Malaysia

Department of Applied Mechanics,

Universiti Teknologi Malaysia (UTM)
Skudai Johor, Malaysia

Robiah Ahmad, UTM Kuala Lumpur,

UTM Razak School of Engineering & Advanced Technology,

UTM Kuala Lumpur, Malaysia

Mohd Zakimi Zakaria, Universiti Malaysia Perlis (UniMAP)

School of Manufacturing Engineering,

Universiti Malaysia Perlis (UniMAP)
Arau Perlis, Malaysia

Published
2018-11-26
How to Cite
Mohd Samsuri, S. F., Ahmad, R., & Zakaria, M. Z. (2018). Comparison of Evolutionary Computation and Empirical Penman-Monteith Equation for Daily and Monthly Reference Evapotranspiration Estimation in Tropical Region. International Journal of Integrated Engineering, 10(7). Retrieved from https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/3480