Data/hora: 23/09/2024 12:20:09

Biblioteca(s): 	Embrapa Agrobiologia.	
Data corrente: 	29/01/1996	
Data da última atualização: 	29/01/1996	
Autoria: 	SARAIVA, J. A. P. G.	
Título: 	Insolation and sunshine in northeastern Brazil: comparison between evaluation methods.	
Ano de publicação: 	1976	
Fonte/Imprenta: 	Fort Collins: Colorado State University, 1976.	
Páginas: 	116p.	
Série: 	Tese de Mestrado.	
Idioma: 	Inglês	
Notas: 	Tese de Mestrado. 	
Conteúdo: 	Data from four locations in the northeast of Brazil, collected during the four months of characteristics Earth positions in its orbit, corresponding to three observational years, have been used in two methods, Angstrin's (1924) and Mueller's (1971), to establish insolation regression equations for these locations, either on a yearly or on a monthly basis. They have been compared to define the best method, not only by presenting the best linear fit, but also by being able to estimate insolation for another year, so as to present fewer difficulties in use by technicians with vocational school training only. A unique solution, valid for an area as large as possible, such as national equations or regional ones, has been searched for and compared with local equations developed, either on a yearly or on a monthly basis. The author has searched for variations in accuracy of the regressions parameters with an increase in data, up to a maximum of three years, as well as possible seasonal changes in precision. The behavior of the regressions parameters in linear relation with latitude, altitude, population, and population density has also been analysed. Three other locations, in the south of the country, have been included, extending this study to all the Brazilian latitudes, in an attempt to furnish to the country a useful tool, and better define the validity of the methods by increasing the amplitude of the lacations geographical parameters. The author concludes that the two methods present the same degree of difficulty...	
Palavras-Chave: 	Avaliacao; Brasil; Evaluation; Insolation; Luz solar; Methods; Nordeste; Northeaster.	
Thesagro: 	Método.	
Thesaurus Nal: 	Brazil.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Agrobiologia (CNPAB)	
Exemplares: 	CNPAB - (25368-1) - ADD - TS - -- - 574.19153 - S243i - 1994.00021 - DIS