Estimation of future Reference Crop Evapotranspiration Using Soft Computing Techniques
DOI:
https://doi.org/10.14419/ijet.v7i3.12.16438Published:
2018-07-20Keywords:
Evapotranspiration, Artificial Neural Network (ANN), FAO-modified Penman method, Thronthwaite method, Hargreaves method.Abstract
Estimation of Evapotranspiration forms the basis for computation of irrigation requirement of crop, and also it is considered as one of the vital component of hydrological cycle. This study describes the conceptual outline and implementation to test the ability of an artificial neural network (ANN) for accurate estimation of reference evapotranspiration (ETo). There are many conventional methods like FAO modified Penman method, temperature-based and radiation-based empirical methods are used to estimate (ETo). Among the conventional methods, Thronthwaite method and Hargreaves method perform well in the selected region. An ANN network is trained to recognize patterns of the daily meteorological variables and their corresponding evapotranspiration which is estimated using FAO-modified Penman method. The advantage of using ANN technique is the network’s ability to use minimum number of meteorological parameters, hence economical.
References
[1] D. M. Amatya, R. W. Skagga, and J. D. Gregory, Journal of Irrigation and Drainage Engineering, ASCE, 121(6), 427- 435 (1995).
[2] J. Doorenbos, WO. Pruitt, Irrigation and Drainage Paper 24, Food and Agriculture Organization of the United Nations. Rome. Italy, pp. 144 (1977).
[3] J. A. Freeman, and D. M. Skapura (1991) Addison-Wesley Publishing Company, New York, (1991).
[4] G.H. Hargreaves, Transaction of the American Society of Agricultural Engineers 18, 980-984 (1975).
[5] L. Jiang, and S. Islam, Water Resour. Res 37(2): .329-340 (2001).
[6] V. Jothiprakash, MR. Ramachandran,P. Shamuganathan, Journal of Institution of Engineers (India) 18,17-20 (2002)
[7] V. Jothiprakash, M.G. Devamane, and K. Sasireka, Journal of Institution of Engineers (India), Vol, 88, Dec(AG), 19-26. ( 2007)
[8] V. Jothiprakash, M.G. Devamane, and K. Sasireka, Journal of Institution of Engineers (India) Vol. 89, Dec(AG), 22-27 (2008).
[9] M. Kumar, N. S. Raghuwanshi, and R. Singh, Irrig. Sci., 29(1), 11–25 (2011).
[10] S. Mohan, and Rama Prasad, Research Report No WRI Department of Civil Engineering, Indian Institute of Science, Bangalore (1987).
[11] J. Shiri, et al. Comput. Electron. Agric., 108, 230–241 (2014).
[12] Shahaboddin Shamshirband, Mohsen Amirmojahedi, Milan Goci, Shatirah Akib, Dalibor Petkovi, Jamshid Piri,; and Slavisa Trajkovic, J. Irrig. Drain Eng., 142(2): 04015044, (2016).
[13] CW. Thronthwaite, Geographical Review 38: 55-94 (1948).
How to Cite
License
Authors who publish with this journal agree to the following terms:- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution Licensethat allows others to share the work with an acknowledgement of the work''s authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal''s published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
Accepted 2018-07-28
Published 2018-07-20