Estimation of global solar radiation for Londrina

Authors

  • José Gomes
  • Jesus Marden dos Santos

DOI:

https://doi.org/10.1590/S1678-3921.pab1978.v13.16825

Keywords:

solar radiation, radiation, solar energy, solar radiation - Londrina - PR - Brazil

Abstract

Relationships between daily global solar radiation (K ↓) and solar radiation at the top of the atmosphere (Qo), and duration of bright sunshine and day length (n/N) were determined by regression analysis at Londrina, Paraná, Brazil. The data used were recorded at the Londrina, IAPAR-Climatological station. Results showed that during every season, n/N alone can be used to estimate K/Qo. ↓ satisfactorily. The relationship derived for estimating K ↓ from duration of bright sunshine (n), K ↓ Qo (0,31 + 0,49 n/N ), showed good agreement with findings of previous workers.

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How to Cite

Gomes, J., & Santos, J. M. dos. (2014). Estimation of global solar radiation for Londrina. Pesquisa Agropecuaria Brasileira, 13(4), 51–56. https://doi.org/10.1590/S1678-3921.pab1978.v13.16825

Issue

v.13, n.4, abr. 1978

Section

ERRATA