期刊名称：Turkish Journal of Engineering and Environmental Sciences
印刷版ISSN：1300-0160
电子版ISSN：1303-6157
出版年度：2013
卷号：37
页码：211-220
DOI：10.3906/muh-1212-5
出版社：Scientific and Technical Research Council of Turkey
摘要：This paper investigates the potential of back propagation neural network and M5 model tree based regression approaches to model monthly reference evapotranspiration using climatic data of an area around Ankara, Turkey. Input parameters include monthly total sunshine hours, air temperature, relative humidity, wind speed, rainfall, and monthly time index, whereas the reference evapotranspiration calculated by FAO–56 Penman–Monteith was used as an output for both approaches. Mean square error, correlation coefficient, and several other statistics were considered to compare the performance of both modeling approaches. The results suggest a better performance by the neural network approach with this dataset, but M5 model trees, being analogous to piecewise linear functions, provide a simple linear relation for prediction of evapotranspiration for the data ranges used in this study. Different scenario analysis with neural networks suggests that rainfall data does not have any influence in predicting evapotranspiration.
关键词：Evapotranspiration; M5 model tree; ANN; Penman–Monteith; Ankara
