[1] Nicholson, S.E. and Grist, J.P. (2003) On the Seasonal Evolution of Atmospheric Circulation over West Africa and Equatorial Africa. Journal of Climate, 16, 1013-1030.
https://doi.org/10.1175/1520-0442(2003)016<1013:TSEOTA>2.0.CO;2
[2] Allen, R.G., Pereira, L.S., Howell, T.A. and Jensen, M.E. (2011) Evapotranspiration Information Reporting: II. Recommended Documentation. Agricultural Water Management, 98, 921-929.
https://doi.org/10.1016/j.agwat.2010.12.016
[3] Djaman, K., Balde, A.B., Sow, A., Muller, B., Irmak, S., Ndiaye, M.K., Manneh, B., Moukoumbi, Y.D., Futakuchi, K. and Saito, K. (2015) Evaluation of Sixteen Reference Evapotranspiration Methods under Sahelian Conditions in the Senegal River Valley. Journal of Hydrology: Regional Studies, 3, 139-159.
[4] Djaman, K., Irmak, S., Kabenge, I. and Futakuchi, K. (2016a) Evaluation of the FAO-56 Penman-Monteith Model with Limited Data and the Valiantzas Models for Estimating Reference Evapotranspiration in the Sahelian Conditions. Journal of Irrigation and Drainage Engineering, 142.
https://doi.org/10.1061/(ASCE)IR.1943-4774.0001070
[5] Djaman, K., Tabari, H., Balde, A.B., Diop, L., Futakuchi, K. and Irmak S. (2016b) Analyses, Calibration and Validation of Evapotranspiration Models to Predict Grass Reference Evapotranspiration in the Senegal River Delta. Journal of Hydrology: Regional Studies, 8, 82-94.
[6] Jensen, M.E. and Haise, H.R. (1963) Estimating Evapotranspiration from Solar Radiation. Journal of the Irrigation and Drainage Division, 89, 15-41.
[7] Mendonça, J.C., Sousa, E.F., de Bernardo, S., Dias, G.P. and Grippa, S. (2003) Comparison of Estimation Methods of Reference Crop Evapotranspiration (ETo) for Northern Region of Rio de Janeiro State, Brazil. Revista Brasileira de Engenharia Agrícola e Ambiental, 7, 275-279.
https://doi.org/10.1590/S1415-43662003000200015
[8] Trajkovic, S. and Kolakovic, S. (2009) Evaluation of Reference Evapotranspiration Equations under Humid Conditions. Water Resource Management, 23, 3057-3067.
https://doi.org/10.1007/s11269-009-9423-4
[9] Thornthwaite, C.W. (1948) An Approach towards a Rational Classification of Climate. Geographical Review, 38, 55-94.
https://doi.org/10.2307/210739
[10] Doorenbos, J. and Pruitt, W.O. (1977) Guidelines for Predicting Crop Water Requirements. FAO Irrigation and Drainage, Paper, 24, FAO, Rome.
[11] Hargreaves, G.H. and Samani, Z.A. (1985) Reference Crop Evapotranspiration from Temperature. Applied Engineering in Agriculture, 1, 96-99.
https://doi.org/10.13031/2013.26773
[12] Allen, R.G., Pereira, L.S., Raes, D. and Smith, M. (1998) Crop Evapotranspiration: Guidelines for Computing Crop Water Requirements. FAO Irrigation and Drainage Paper No. 56, FAO, Rome.
[13] ASCE-EWRI (2005) The ASCE Standardized Reference Evapotranspiration Equation. In: Allen, R.G., Walter, I.A., Elliot, R.L., et al., Eds., Standardization of Reference Evapotranspiration Task Committee Final Report, Environmental and Water Resources Institute (EWRI) of the American Society of Civil, Engineers, ASCE, Reston, VA, 213 p.
[14] Valiantzas, J.D. (2013) Simplified Forms for the Standardized FAO-56 Penman-Monteith Reference Evapotranspiration Using Limited Data. Journal of Hydrology, 505, 13-23.
https://doi.org/10.1016/j.jhydrol.2013.09.005
[15] Utset, A., Farre, I., Martinez-Cob, A. and Cavero, J. (2004) Comparing Penman-Monteith and Priestley-Taylor Approaches as Reference Evapotranspiration Inputs for Modeling Maize Water Use under Mediterranean Conditions. Agricultural Water Management, 66, 205-219.
https://doi.org/10.1016/j.agwat.2003.12.003
[16] López-Urrea, R., Martín de Santa, O.F., Fabeiro, C. and Moratalla, A. (2006) Testing Evapotranspiration Equations Using Lysimeter Observations in a Semiarid Climate. Agricultural Water Management, 85, 15-26.
https://doi.org/10.1016/j.agwat.2006.03.014
[17] Bodner, G., Loiskandl, W. and Kaulm, H. (2007) Cover Crop Evapotranspiration under Semi-Arid Conditions Using FAO Dual Crop Coefficient Method with Water Stress Compensation. Agricultural Water Management, 93, 85-98.
https://doi.org/10.1016/j.agwat.2007.06.010
[18] Xing, Z., Chow, L., Meng, F., Rees, H.W., Monteith, J. and Lionel, S. (2008) Testing Reference Evapotranspiration Estimation Methods Using Evaporation Pan and Modeling in Maritime Region of Canada. Journal of Irrigation and Drainage Engineering, 134, 417-424.
https://doi.org/10.1061/(ASCE)0733-9437(2008)134:4(417)
[19] Irmak, S., Irmak, A., Howell, T.A., Martin, D.L., Payero, J.O. and Copeland, K.S. (2008) Variability Analyses of Alfalfa-Reference to Grass-Reference Evapotranspiration Ratios in Growing and Dormant Seasons. Journal of Irrigation and Drainage Engineering, 134, 147-159.
https://doi.org/10.1061/(ASCE)0733-9437(2008)134:2(147)
[20] Djaman, K., Rudnick, D., Mel, V.C., Mutiibwa, D., Diop, L., Sall, M., Kabenge, I., Bodian, A., Tabari, A. and Irmak, S. (2017a) Evaluation of the Valiantzas’ Simplified Forms of the FAO-56 Penman-Monteith Reference Evapotranspiration Model under Humid Climate. Journal of Irrigation and Drainage Engineering, 143.
[21] Ndiaye, P.M., Bodian, A., Diop, L. and Djaman, K. (2017) Evaluation de vingt méthodes d’estimation de l’évapotranspiration journalière de référence au Burkina Faso. [Evaluation of Twenty Daily Reference Evapotranspiration Estimation Methods in Burkina Faso..] Physio-Geo, 11-1, 129-146.
https://doi.org/10.4000/physio-geo.5369
[22] Djaman, K., Irmak, S. and Futakuchi, K. (2017b) Daily Reference Evapotranspiration Estimation under Limited Data in Eastern Africa. Journal of Irrigation and Drainage Engineering, 143.
[23] Tabari, H., Grismer, M. and Trajkovic, S. (2013) Comparative Analysis of 31 Reference Evapotranspiration Methods under Humid Conditions. Irrigation Science, 31, 107-117.
https://doi.org/10.1007/s00271-011-0295-z
[24] Ahooghalandari, M., Khiadani, M. and Jahromi, W.E. (2016) Calibration of Valiantzas’ Reference Evapotranspiration Equations for the Pilbara Region, Western Australia. Theoretical and Applied Climatology, 128, 845-856.
https://doi.org/10.1007/s00704-016-1744-7
[25] Singh, V.P. and Xu, C.Y. (1997) Evaluation and Generalization of 13 Mass-Transfer Equations for Determining Free Water Evaporation. Hydrological Processes, 11, 311-324.
https://doi.org/10.1002/(SICI)1099-1085(19970315)11:3<311::AID-HYP446>3.0.CO;2-Y
[26] Tabari, H. and Hosseinzadeh-Talaee, P. (2011) Local Calibration of the Hargreaves and Priestley-Taylor Equations for Estimating Reference Evapotranspiration in Arid and Cold Climates of Iran Based on the Penman-Monteith Model. Journal of Hydrologic Engineering, 16, 837-845.
https://doi.org/10.1061/(ASCE)HE.1943-5584.0000366
[27] Heydari, M.M. and Heydari, M. (2014) Evaluation of Pan Coefficient Equations for Estimating Reference Crop Evapotranspiration in the Arid Region. Archives of Agronomy and Soil Science, 60, 715-731.
https://doi.org/10.1080/03650340.2013.830286
[28] Valipour, M. (2015) Importance of Solar Radiation, Temperature, Relative Humidity, and Wind Speed for Calculation of Reference. Archives of Agronomy and Soil Science, 6, 239-255.
[29] Zhai, L., Feng, Q., Li, Q. and Xu, C. (2010) Comparison and Modification of Equations for Calculating Evapotranspiration (ET) with Data from Gansu Province, Northwest China. Irrigation and Drainage, 59, 477-490.
https://doi.org/10.1002/ird.502
[30] Bogawski, P. and Bednorz, E. (2014) Comparison and Validation of Selected Evapotranspiration Models for Conditions in Poland (Central Europe). Water Resources Management, 28, 5021-5038.
https://doi.org/10.1007/s11269-014-0787-8
[31] Thepadia, M. and Martinez, C.J. (2012) Regional Calibration of Solar Radiation and Reference Evapotranspiration Estimates with Minimal Data in Florida. Journal of Irrigation and Drainage Engineering, 138, 111-119.
https://doi.org/10.1061/(ASCE)IR.1943-4774.0000394
[32] Azhar, A.H. and Perera, B.J.C. (2011) Evaluation of Reference Evapotranspiration Estimation Methods under Southeast Australian Conditions. Journal of Irrigation and Drainage Engineering, 137, 268-279.
https://doi.org/10.1061/(ASCE)IR.1943-4774.0000297
[33] Abtew, W. (1996) Evapotranspiration Measurements and Modeling for Three Wetland Systems in South Florida. Journal of the American Water Resources Association, 32, 465-473.
https://doi.org/10.1111/j.1752-1688.1996.tb04044.x
[34] Jabloun, M. and Sahli, A. (2008) Evaluation of FAO-56 Methodology for Estimating Reference Evapotranspiration Using Limited Climatic Data Application to Tunisia. Agricultural Water Management, 95, 707-715.
https://doi.org/10.1016/j.agwat.2008.01.009
[35] Sentelhas, P.C., Gillespie, T.J. and Santos, E.A. (2010) Evaluation of FAO Penman-Monteith and Alternative Methods for Estimating Reference Evapotranspiration with Missing Data in Southern Ontario, Canada. Agricultural Water Management, 97, 635-644.
https://doi.org/10.1016/j.agwat.2009.12.001
[36] Martinez, C.J. and Thepadia, M. (2010) Estimating Reference Evapotranspiration with Minimum Data in Florida, USA. Journal of Irrigation and Drainage Engineering, 136, 494-501.
https://doi.org/10.1061/(ASCE)IR.1943-4774.0000214
[37] Rojas, J. and Sheffield, R. (2013).Evaluation of Daily Reference Evapotranspiration Methods as Compared with the ASCE-EWRI Penman-Monteith Equation Using Limited Weather Data in Northeast Louisiana. Journal of Irrigation and Drainage Engineering, 139, 285-292.
https://doi.org/10.1061/(ASCE)IR.1943-4774.0000523
[38] Hansen, S. (1984) Estimation of Potential and Actual Evapotranspiration. Hydrology Research, 15, 205-212.
[39] Droogers, P. and Allen, R.G. (2002) Estimating Reference Evapotranspiration under Inaccurate Data Conditions. Irrigation Drainage System, 16, 33-45.
https://doi.org/10.1023/A:1015508322413
[40] Hargreaves, G.H. and Allen, R.G. (2003) History and Evaluation of Hargreaves Evapotranspiration Equation. Journal of Irrigation and Drainage Engineering ASCE, 129, 53-63.
https://doi.org/10.1061/(ASCE)0733-9437(2003)129:1(53)
[41] Irmak, S., Irmak, A., Allen, R.G. and Jones, J.W. (2003) Solar and Net Radiation-Based Equations to Estimate Reference Evapotranspiration in Humid Climates.
Journal of Irrigation and Drainage Engineering, 129, 336-347.
https://doi.org/10.1061/(ASCE)0733-9437(2003)129:5(336)
[42] Weigel, A.P., Liniger, M.A. and Appenzeller, C. (2008) Can Multi-Model Combination Really Enhance the Prediction Skill of Probabilistic Ensemble Forecasts? Quarterly Journal of the Royal Meteorological Society, 134, 241-260.
https://doi.org/10.1002/qj.210
[43] Hagedorn, R., Doblas-Reyes, F.J. and Palmer, T.N. (2005) The Rationale behind the Success of Multi-Model Ensembles in Seasonal Forecasting. Part I: Basic Concept. Tellus, A57, 219-233.
[44] Cantelaube, P. and Terres, J. (2005) Seasonal Weather Forecasts for Crop Yield Modeling in Europe. Tellus, A57, 476-487.
https://doi.org/10.3402/tellusa.v57i3.14669
[45] Guber, A.K., Pachepsky, Y.A., Van Genuchten, M.T., Rawls, W.J., Simunek, J., Jacques, D. and Cady, R.E. (2006) Field-Scale Water Flow Simulations Using Ensembles of Pedo Transfer Functions for Soil Water Retention. Vadose Zone Journal, 5, 234-247.
https://doi.org/10.2136/vzj2005.0111
[46] Tebaldi, C and Knutti, R. (2007) The Use of the Multi-Model Ensemble in Probabilistic Climate Projections. Philosophical Transactions of the Royal Society A, 365, 2053-2075
https://doi.org/10.1098/rsta.2007.2076
[47] Christensen, N.S. and Lettenmaier, D.P. (2007) A Multimodel Ensemble Approach to Assessment of Climate Change Impacts on the Hydrology and Water Resources of the Colorado River Basin. Hydrology and Earth System Sciences, 11, 1417-1434.
https://doi.org/10.5194/hess-11-1417-2007
[48] Xu, C.Y. and Singh, V.P. (2000) Evaluation and Generalization of Radiation-Based Methods for Calculating Evaporation. Hydrological Processes, 14, 339-349.
https://doi.org/10.1002/(SICI)1099-1085(20000215)14:2<339::AID-HYP928>3.0.CO;2-O
[49] Popova, Z., Kercheva, M. and Pereira, L. (2006) Validation of the FAO Methodology for Computing ETo with Limited Data. Application to South Bulgaria. Irrigation and Drainage, 215, 201-215.
https://doi.org/10.1002/ird.228
[50] Kwon, H. and Choi, M. (2011) Error Assessment of Climate Variables for FAO-56 Reference Evapotranspiration. Meteorology and Atmospheric Physics, 112, 81-90.
https://doi.org/10.1007/s00703-011-0132-1
[51] Todorovic, M., Karic, B. and Pereira, L.S. (2013) Reference Evapotranspiration Estimate with Limited Weather Data across a Range of Mediterranean Climates. Journal of Hydrology, 481, 166-176.
https://doi.org/10.1016/j.jhydrol.2012.12.034
[52] Wang, Y.M., Namaona, W., Gladden, L.A., Traore, S. and Deng, L.T. (2011) Comparative Study on Estimating Reference Evapotranspiration under Limited Climate Data Condition in Malawi. Int. Journal of the Physical Sciences, 6, 2239-2248.
[53] Córdova, M., Carrillo-Rojas, G., Crespo, P., Wilcox, B. and Célleri, R. (2015) Evaluation of the Penman-Monteith (FAO 56 PM) Method for Calculating Reference Evapotranspiration Using Limited Data. Application to the Wet Páramo of Southern Ecuador. Mountain Research and Development, 35, 230-239.
https://doi.org/10.1659/MRD-JOURNAL-D-14-0024.1
[54] Tomar, A.S. (2015) Comparative Performance of Reference Evapotranspiration Equations at Sub-Humid Tarai Region of Uttarakhand, India. International Journal of Agricultural Research, 10, 65-73.
https://doi.org/10.3923/ijar.2015.65.73
[55] Salih, A. and Sendil, U. (1984) Evapotranspiration under Extremely Arid Climates. Journal of Irrigation and Drainage Engineering, 110, 289-303.
https://doi.org/10.1061/(ASCE)0733-9437(1984)110:3(289)
[56] Fernandes, L.C., Paiva, C.M. and Filho, R.C.O. (2012) Evaluation of Six Empirical Evapotranspiration Equations—Case Study: Campos dos Goytacazes/RJ. Revista Brasileira de Meteorologia, 27, 272-280.
https://doi.org/10.1590/S0102-77862012000300002
[57] Al-Sha'lan, S. and Salih, A. (1987) Evapotranspiration Estimates in Extremely Arid Areas. Journal of Irrigation and Drainage Engineering, 113, 565-574.
https://doi.org/10.1061/(ASCE)0733-9437(1987)113:4(565)
[58] Kingston, D.G., Todd, M.C., Taylor, R.G., Thompson, J.R. and Arnell, N.W. (2009) Uncertainty in the Estimation of Potential Evapotranspiration under Climate Change. Geophysical Research Letters, 36, L20403.
https://doi.org/10.1029/2009GL040267
[59] Xystrakis, F. and Matzarakis, A. (2011) Evaluation of 13 Empirical Reference Potential Evapotranspiration Equations on the Island of Crete in Southern Greece. Journal of Irrigation and Drainage Engineering, 137, 211-222.
https://doi.org/10.1061/(ASCE)IR.1943-4774.0000283
[60] Sabziparvar, A.A. and Mirgaloybayat, R. (2015) Evaluation of Some Existing Empirical and Semi-Empirical Net Radiation Models for Estimation of Daily ET0. Journal of Advanced Agricultural Technologies, 2, 46-49.
https://doi.org/10.12720/joaat.2.1.46-49
[61] Gavil′an, P., Lorite, I.J., Tornero, S. and Berengena, J. (2006) Regional Calibration of Hargreaves Equation for Estimating Reference ET in a Semiarid Environment. Agricultural Water Management, 81, 257-281.
https://doi.org/10.1016/j.agwat.2005.05.001
[62] Wada, Y., Wisser, D., Eisner, S., Florke, M., Gerten, D., Haddeland, I., Hanasaki, N., Masaki, Y., Portmann, F.T., Stacke, T., Tessler, Z. and Schewe, J. (2013) Multi-Model Projections and Uncertainties of Irrigation Water Demand under Climate Change. Geophysical Research Letters, 40, 4626-4632.
https://doi.org/10.1002/grl.50686
[63] Multsch, S., Exbrayat, J.F., Kirk, M., Viner, N.R., Frede, H.G. and Breuer, L. (2015) Reduction of Predictive Uncertainty in Estimating Irrigation Water Requirement through Multi-Model Ensembles and Ensemble Averaging. Geoscientific Model Development, 8, 1233-1244.
https://doi.org/10.5194/gmd-8-1233-2015
[64] Wang, A., Bohn, T., Mahannama, S.P., Koster, D.R. and Lettenmaier, D.P. (2009) Multimodel Ensemble Reconstruction of Drought over the Continental United States. Journal of Climate, 22, 2694-2712.
https://doi.org/10.1175/2008JCLI2586.1
[65] Samaras, D.A., Reif, A. and Theodoropoulos, K. (2014) Evaluation of Radiation-Based Reference Evapotranspiration Models under Different Mediterranean Climates in Central Greece. Water Resources Manage, 28, 207-225.
https://doi.org/10.1007/s11269-013-0480-3