SENSITIVITY ANALYSIS OF ETO FOR FIVE CURRENT MODELS USING MONTE-CARLOSIMULATION CASE STUDY: BOJNOURD SYNOPTIC STATION

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MAKARI M.; GHAHRAMAN B.; SANAEINEJAD S.H.

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Journal: Journal of Water and Soil Year:2015 | Volume:28 | Issue:6 Page(s): 1126-1136

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Title

SENSITIVITY ANALYSIS OF ETO FOR FIVE CURRENT MODELS USING MONTE-CARLOSIMULATION CASE STUDY: BOJNOURD SYNOPTIC STATION

Author(s)

MAKARI M. | GHAHRAMAN B. | SANAEINEJAD S.H. | Issue Writer Certificate

Keywords

REFERENCE EVAPOTRANSPIRATIONQ1

SENSITIVITY ANALYSISQ2

SENSITIVITY COEFFICIENTQ1

MONTE-CARLO SIMULATIONQ2

Abstract

The objective of this study is to analyze the sensitivity of ETo for five models including FAO-Penman Monteith, modified Blaney-Criddle, Hargreaves, Hargreaves-Samani and Priestley –Taylor. Daily meteorological data of Bojnourd synoptic station including air temperature, relative humidity, actual duration sunshine and wind velocity were used for SENSITIVITY ANALYSIS of five models. In order to produce random data ata specific range, MONTE-CARLO SIMULATION was performed. Annual and seasonal RMSE (mm.day-1) were calculated to indicate the sensitivity of ETo in simultaneous variations of meteorological variables in eachmodel. The results obtained in this study showed that the sensitivity of ET0 in simultaneous variations of meteorological variables is higher in summer. In all models, the most sensitivity was seen in summer and spring and the least sensitivity was occurred in autumn and winter. Among the studied models, FAO-PM and BC models had the most annual sensitivity and PT model had the least annual sensitivity. All of the models had fairly high correlation coefficient with FAO-PM model but the quantity of RMSE and MAE was different ineach model. BC model had the most RMSE and the least RMSE and MAE was seen in MAE and PT. According to the findings in this study, it can be concluded that SH model is fairly suitable for estimation ofET0 in synoptic station.

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APA: Copy

MAKARI, M., GHAHRAMAN, B., & SANAEINEJAD, S.H.. (2015). SENSITIVITY ANALYSIS OF ETO FOR FIVE CURRENT MODELS USING MONTE-CARLOSIMULATION CASE STUDY: BOJNOURD SYNOPTIC STATION. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 28(6), 1126-1136. SID. https://sid.ir/paper/141188/en

Vancouver: Copy

MAKARI M., GHAHRAMAN B., SANAEINEJAD S.H.. SENSITIVITY ANALYSIS OF ETO FOR FIVE CURRENT MODELS USING MONTE-CARLOSIMULATION CASE STUDY: BOJNOURD SYNOPTIC STATION. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2015;28(6):1126-1136. Available from: https://sid.ir/paper/141188/en

IEEE: Copy

M. MAKARI, B. GHAHRAMAN, and S.H. SANAEINEJAD, “SENSITIVITY ANALYSIS OF ETO FOR FIVE CURRENT MODELS USING MONTE-CARLOSIMULATION CASE STUDY: BOJNOURD SYNOPTIC STATION,” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 28, no. 6, pp. 1126–1136, 2015, [Online]. Available: https://sid.ir/paper/141188/en

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