Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Global, diffuse and direct solar radiation at the surface in the city of Rio de Janeiro: Observational characterization and empirical modeling

Full text
Author(s):
Marques Filho, Edson P. [1, 2] ; Oliveira, Amauri P. [3] ; Vita, Willian A. [1] ; Mesquita, Francisco L. L. [1, 4] ; Codato, Georgia [3] ; Escobedo, Joao F. [5] ; Cassol, Mariana [6] ; Franca, Jose Ricardo A. [1]
Total Authors: 8
Affiliation:
[1] Univ Fed Rio de Janeiro, Inst Geosci, Rio De Janeiro, RJ - Brazil
[2] Univ Fed Bahia, Inst Phys, Salvador, BA - Brazil
[3] Univ Sao Paulo, Inst Astron Geophys & Atmospher Sci, Sao Paulo, SP - Brazil
[4] Ctr Weather Forecast & Climate Studies, Brazilian Inst Space Res, Sao Jose Dos Campos, SP - Brazil
[5] State Univ Sao Paulo, Sch Agron Sci, Botucatu, SP - Brazil
[6] Univ Fed Bahia, Inst Math, Salvador, BA - Brazil
Total Affiliations: 6
Document type: Journal article
Source: RENEWABLE ENERGY; v. 91, p. 64-74, JUN 2016.
Web of Science Citations: 21
Abstract

The city of Rio de Janeiro and others 18 cities compose the Metropolitan Area of Rio de Janeiro. The main objective of this work is to characterize observationally the diurnal and seasonal evolution of the solar radiation components in the city of Rio de Janeiro. The measurements of global and diffuse solar radiation and standard meteorological variables at the surface have been carried out regularly at the Geo-science Institute of Federal University of Rio de Janeiro since October of 2011. The microclimatic conditions show that the period 2011-2014 was warmer during most of the year and drier in summer and spring in comparison with climate normal. All solar radiation components present a well defined diurnal cycle with maximum at noon. The estimates of global and direct solar radiation indicate a great potential available for solar energy at the surface, particularly in summer. The behavior of the clearness index and diffuse solar radiation fraction is similar in summer and winter. The Angstrom formula represents properly the estimate of the monthly average daily value of global solar radiation. The sigmoid logistic function is statistically more significant in comparison with others correlation models to represent the diffuse fraction as a function clearness index. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 11/50178-5 - Urban tropical micrometeorology applied to climate change over the metropolitan urban regions of São Paulo and Rio de Janeiro
Grantee:Amauri Pereira de Oliveira
Support Opportunities: Research Program on Global Climate Change - Regular Grants