COMPARISON OF SOME CROP REFERENCE EVAPOTRANSPIRATION MODELS IN A COLD SEMI-ARID CLIMATE TO OPTIMIZE THE USE OF RADIATION MODELS

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SABZIPARVAR A.A.; TAFAZOLI F.; ZARE ABYANEH HAMID; BANEZHAD H.; MOUSAVI BAYEGI S.M.; GHAFOURI MOHAMMAD; MOHSENI MOVAHED A.A.; MARIANJI Z.

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Journal: Journal of Water and Soil Year:2008 | Volume:22 | Issue:2 Page(s): 328-340

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Title

COMPARISON OF SOME CROP REFERENCE EVAPOTRANSPIRATION MODELS IN A COLD SEMI-ARID CLIMATE TO OPTIMIZE THE USE OF RADIATION MODELS

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Keywords

EVAPOTRANSPIRATION MODELSQ3

RADIATION MODELSQ3

DRAINABLE LYSIMETERQ3

COLD SEMI-ARID CLIMATEQ3

Abstract

The estimation of reference evapotranspiration (ETo) is of great importance due to its applications in water resource management as well as irrigation scheduling. Difficulties associated with using lysimeters have encouraged researchers to use various ETo models, while the shortage of actual radiation data seems the main obstacle for users of radiation-based models. In this research the output of four radiation-based EVAPOTRANSPIRATION MODELS including: Penman-Montieth-FAO56 (PMF56), Penman-Montieth FAO-Irmak (PMFI), modified Jensen-Haise (JH1), and Jensen-Haise (JH2) are evaluated for a COLD SEMI-ARID CLIMATE. The daily ETo values were generated for 16 different scenarios and the results were compared against a two-year lysimeter data during the growing season (May to November). Deviations of model results were investigated using mean of R2, RMSE, MBE and t-test criteria. The results indicated that the JH2 model which uses radiation model of Daneshyar, can generate the most accurate ETo values (R2>0.85, P<0.05) in COLD SEMI-ARID CLIMATEs. Although, the Angstrom RADIATION MODELS are widely being used to generate radiation data in recent years, this research showed that other RADIATION MODELS can provide more accurate radiation data for radiation-based ETo models. In places with lack or shortage of meteorological data, using an accurate radiation model might significantly reduce the errors generated by certain ETo models. The mentioned RADIATION MODELS and ETo models should be examined for other climates.

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APA: Copy

SABZIPARVAR, A.A., TAFAZOLI, F., ZARE ABYANEH, HAMID, BANEZHAD, H., MOUSAVI BAYEGI, S.M., GHAFOURI, MOHAMMAD, MOHSENI MOVAHED, A.A., & MARIANJI, Z.. (2008). COMPARISON OF SOME CROP REFERENCE EVAPOTRANSPIRATION MODELS IN A COLD SEMI-ARID CLIMATE TO OPTIMIZE THE USE OF RADIATION MODELS. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 22(2), 328-340. SID. https://sid.ir/paper/141554/en

Vancouver: Copy

SABZIPARVAR A.A., TAFAZOLI F., ZARE ABYANEH HAMID, BANEZHAD H., MOUSAVI BAYEGI S.M., GHAFOURI MOHAMMAD, MOHSENI MOVAHED A.A., MARIANJI Z.. COMPARISON OF SOME CROP REFERENCE EVAPOTRANSPIRATION MODELS IN A COLD SEMI-ARID CLIMATE TO OPTIMIZE THE USE OF RADIATION MODELS. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2008;22(2):328-340. Available from: https://sid.ir/paper/141554/en

IEEE: Copy

A.A. SABZIPARVAR, F. TAFAZOLI, HAMID ZARE ABYANEH, H. BANEZHAD, S.M. MOUSAVI BAYEGI, MOHAMMAD GHAFOURI, A.A. MOHSENI MOVAHED, and Z. MARIANJI, “COMPARISON OF SOME CROP REFERENCE EVAPOTRANSPIRATION MODELS IN A COLD SEMI-ARID CLIMATE TO OPTIMIZE THE USE OF RADIATION MODELS,” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 22, no. 2, pp. 328–340, 2008, [Online]. Available: https://sid.ir/paper/141554/en

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