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Development and comparative evaluation of radiation-based reference evapotranspiration equations for sub-humid Hazaribagh region of Jharkhand CIGR Journal
TOMAR, ARVIND SINGH.
In this study, two site-specific solar radiation (Rs) and net radiation (Rn) based equations for estimating reference evapotranspiration (ET­0) were developed and their performance were statistically analysed in comparison to widely accepted FAO Penman-Monteith method (PMF-56) and four other standard radiation methods for sub-humid Hazaribagh region of Jharkhand. These two equations were developed with daily values of Rs and Rn in conjunction with maximum and minimum air temperature by taking daily PMF-56 ET0 values as index with weather dataset of 15 years (1990-2004). The performance of these equations validated with carefully screened daily weather dataset of eight years (2005-2012) with other considered standard methods revealed that they estimated ET0...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Site-specific; Radiation; Statistical performance; India..
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3121
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Development and comparative evaluation of radiation-based reference evapotranspiration equations for sub-humid Hazaribagh region of Jharkhand CIGR Journal
ARVIND SINGH TOMAR; GBPUAT, PANTNAGAR.
In this study, two site-specific solar radiation (Rs) and net radiation (Rn) based equations for estimating reference evapotranspiration (ET­0) were developed and their performance were statistically analysed in comparison to widely accepted FAO Penman-Monteith method (PMF-56) and four other standard radiation methods for sub-humid Hazaribagh region of Jharkhand. These two equations were developed with daily values of Rs and Rn in conjunction with maximum and minimum air temperature by taking daily PMF-56 ET0 values as index with weather dataset of 15 years (1990-2004). The performance of these equations validated with carefully screened daily weather dataset of eight years (2005-2012) with other considered standard methods revealed that they estimated ET0...
Palavras-chave: Site-specific; Radiation; Statistical performance; India..
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3121
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MULTIDIMENSIONAL EVALUATION OF FLEXIBLE FUNCTIONAL FORMS FOR PRODUCTION ANALYSIS AgEcon
Ornelas, Fermin S.; Shumway, C. Richard.
Several common flexible functional forms are evaluated for Texas agricultural production utilizing three procedures. Nested hypothesis tests indicate that the normalized quadratic is the marginally-preferred functional form followed by the generalized Leontief. Predictive accuracy results are ambiguous between the generalized Leontief and the normalized quadratic. Statistical performance favors the normalized quadratic. These two functional forms consistently dominate the translog.
Tipo: Journal Article Palavras-chave: Box-Cox; Functional form; Prediction; Production; Statistical performance; Production Economics.
Ano: 1993 URL: http://purl.umn.edu/15046
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