COMPARISON OF ACTUAL EVAPOTRANSPIRATION ESTIMATED USING GRAM-SCHMIDT METHOD AND SEBAL ALGORITHM WITH LYSIMETERIC DATA (CASE STUDY; AMIR KABIR SUGARCANE ARGO- INDUSTRY COMPANY)

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GOSHEHGIR A.S.; GOLABI M.; NASERI A.A.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2018 | Volume:14 | Issue:1 Page(s): 125-139

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Title

COMPARISON OF ACTUAL EVAPOTRANSPIRATION ESTIMATED USING GRAM-SCHMIDT METHOD AND SEBAL ALGORITHM WITH LYSIMETERIC DATA (CASE STUDY; AMIR KABIR SUGARCANE ARGO- INDUSTRY COMPANY)

Author(s)

GOSHEHGIR A.S. | GOLABI M. | NASERI A.A. | Issue Writer Certificate

Keywords

SEBAL ALGORITHMQ1

ACTUAL EVAPOTRANSPIRATIONQ2

GRAM-SCHMIDT METHODQ1

Abstract

One of the most important parameters of the water balance equation is evapotranspiration which is an effective factor in the management of water resources. As in many different sciences where hardware methods are widely being replaced by software methods, ACTUAL EVAPOTRANSPIRATION is also being determined using remote sensing and satellite images. According to the importance of ACTUAL EVAPOTRANSPIRATION in the allocation of water resources, in current research this parameter was determined for sugarcane by in Amir Kabir Sugarcane Argo-Industry using satellite images from Landsat8 (suitable spatial resolution) and MODIS (acceptable temporal resolution) and the results were compared with lysimeteric data. For this purpose, Landsat 8 and MODIS images were merged in the period of 16 days by GRAM-SCHMIDT METHOD and the ACTUAL EVAPOTRANSPIRATION of sugarcane was estimated by SEBAL ALGORITHM. In addition, the amount of ACTUAL EVAPOTRANSPIRATION was calculated using Landsat8 images and SEBAL ALGORITHMs. Finally, the results of the two methods were compared with lysimeteric data and were analyzed by statistical methods. The results indicated that the average of absolute difference between ACTUAL EVAPOTRANSPIRATION of fusion images and lysimeteric method was 0.55 (mm/day). This index was 0.063 (mm/day) for Landsat 8 images compared to lysimeteric data and the average of absolute difference between the two methods of remote sensing was obtained as 0.58 (mm/day). Also at the level of five percent, there is not a significant difference between the two methods of remote sensing.

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APA: Copy

GOSHEHGIR, A.S., GOLABI, M., & NASERI, A.A.. (2018). COMPARISON OF ACTUAL EVAPOTRANSPIRATION ESTIMATED USING GRAM-SCHMIDT METHOD AND SEBAL ALGORITHM WITH LYSIMETERIC DATA (CASE STUDY; AMIR KABIR SUGARCANE ARGO- INDUSTRY COMPANY). IRAN-WATER RESOURCES RESEARCH, 14(1 ), 125-139. SID. https://sid.ir/paper/100307/en

Vancouver: Copy

GOSHEHGIR A.S., GOLABI M., NASERI A.A.. COMPARISON OF ACTUAL EVAPOTRANSPIRATION ESTIMATED USING GRAM-SCHMIDT METHOD AND SEBAL ALGORITHM WITH LYSIMETERIC DATA (CASE STUDY; AMIR KABIR SUGARCANE ARGO- INDUSTRY COMPANY). IRAN-WATER RESOURCES RESEARCH[Internet]. 2018;14(1 ):125-139. Available from: https://sid.ir/paper/100307/en

IEEE: Copy

A.S. GOSHEHGIR, M. GOLABI, and A.A. NASERI, “COMPARISON OF ACTUAL EVAPOTRANSPIRATION ESTIMATED USING GRAM-SCHMIDT METHOD AND SEBAL ALGORITHM WITH LYSIMETERIC DATA (CASE STUDY; AMIR KABIR SUGARCANE ARGO- INDUSTRY COMPANY),” IRAN-WATER RESOURCES RESEARCH, vol. 14, no. 1 , pp. 125–139, 2018, [Online]. Available: https://sid.ir/paper/100307/en

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