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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 14, issue 10
Ann. Geophys., 14, 1051–1059, 1996
https://doi.org/10.1007/s00585-996-1051-1
© European Geosciences Union 1996
Ann. Geophys., 14, 1051–1059, 1996
https://doi.org/10.1007/s00585-996-1051-1
© European Geosciences Union 1996

  31 Oct 1996

31 Oct 1996

Diffuse solar radiation and associated meteorological parameters in India

A. B. Bhattacharya1, S. K. Kar1, and R. Bhattacharya2 A. B. Bhattacharya et al.
  • 1Department of Physics, Kalyani University, Kalyani, West Bengal, 741 235, India
  • 2Centre of Advanced Study in Radio Physics and Electronics, Calcutta University, Calcutta, 700 009, India

Abstract. Solar diffuse radiation data including global radiation, shortwave and longwave balances, net radiation and sunshine hours have been extensively analyzed to study the variation of diffuse radiation with turbidity and cloud discharges appearing in the form of atmospherics over the tropics. Results of surface radiation measurements at Calcutta, Poona, Delhi and Madras are presented together with some meteorological parameters. The monthly values of diffuse radiation and the monthly ratios of diffuse to global solar radiation have been examined, with a special emphasis in relation to the noise level of atmospherics at Calcutta in the very low frequency band. The results exhibit some definite seasonal changes which appear to be in close agreement with one another.

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