๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Estimates of solar radiation in Brazil

โœ Scribed by F.S. da Mota; M.I.C. Beirsdorf; M.J.C. Acosta

Publisher
Elsevier Science
Year
1977
Weight
542 KB
Volume
18
Category
Article
ISSN
0002-1571

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โœฆ Synopsis

A world geographical relationship between average annual relative sunshine (n/N) and the a and b constants of the ngstr6m formula for estimating global solar radiation was used to determine those constants for 96 stations widely distributed throughout Brazil. Good agreement was observed between the values so obtained and that resulted from Eppley pyranometer measurements in the only two stations in Brazil where such measurements were taken up-to-date.

In this way, normal (1931--1960), monthly and annual, global solar radiation, were estimated from sunshine measurements.

Eight seasonal types and nine sub-types of global solar radiation distribution were identified and its geographical distribution mapped.

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