Data/hora: 07/06/2024 12:12:54

Provedor de dados: 	111	
País: 	China	
Título: 	Evaluation of Valiantzas ET0 Equations against FAO56-PM Model in Indian Semi-arid Climatic Conditions	
Autores: 	TOMAR, ARVIND SINGH.	
Data: 	2021-09-26	
Ano: 	2021	
Palavras-chave: 	Valiantzas equations; Reference evapotranspiration; Semi-arid; Hissar; Parbhani; India.	
Resumo: 	In this study, performance of three forms of Valiantzas ET0 equations namely, (i) requiring full meteorological dataset, (ii) not requiring wind speed data, and (iii) not requiring both wind speed &amp;amp; relative humidity data for Indian semi-arid Hissar and Parbhani districts in comparison to widely accepted FAO-56 PM model was evaluated in terms of different statistical indices and their ranking based on GPI values. All Valiantzas ET0 equations requiring full meteorological dataset under-estimated FAO56-PM estimates in the range of 9.10 to 21.84% at Hissar while they over-estimated it in the range of 0.98 to 8.32% at Parbhani district. Valiantzas equations not requiring wind speed data under-estimated FAO56-PM ET0 values in the range of 3.90 to 34.56% at Hissar and over-estimated the same in the range of 11.55 to 41.28% at Parbhani. The Valiantzas equations not requiring both wind speed &amp;amp; relative humidity data under-estimated FAO56-PM ET0 estimates in the range of 23.80 to 57.56% at Hissar and over-estimated it in the range of -1.80 to 6.96% at Parbhani district. Among all 16 considered Valiantzas ET0 equations, Val 7 and Val 2 (equations requiring full meteorological dataset) showed best performance at Hissar and Parbhani districts, respectively while Val 16 (equation not requiring both wind speed &amp;amp; relative humidity data) and Val 9 (representing Valiantzas equations not requiring wind speed data) were adjudged worst at Indian semi-arid Hissar and Parbhani districts, respectively.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.cigrjournal.org/index.php/Ejounral/article/view/6651	
Editor: 	International Commission of Agricultural and Biosystems Engineering	
Relação: 	http://www.cigrjournal.org/index.php/Ejounral/article/view/6651/3659	
Formato: 	application/pdf	
Fonte: 	Agricultural Engineering International: CIGR Journal; Vol. 23 No. 3 (2021): CIGR Journal

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Fonte: 	Copyright (c) 2021 Agricultural Engineering International: CIGR Journal