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Solar radiation and the duration of sunshine in Trinidad, West Indies
Author(s) -
Smith G. W.
Publication year - 1959
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49708536613
Subject(s) - sunlight , west indies , sunshine duration , atmospheric sciences , radiation , duration (music) , environmental science , atmosphere (unit) , radiant energy , maximum temperature , climatology , meteorology , geography , physics , astronomy , geology , optics , relative humidity , history , ethnology , acoustics
Records of daily solar radiation energy extending over a period of one year have been compared with readings of sunlight duration obtained with a Campbell‐Stokes recorder. Energy records were made with a bimetallic antinograph. The regression equation obtained for the daily values in Trinidad, West Indies was R = R A (0·20 + 0·59 n/N ), with a correlation coefficient of 0·91 where R = radiation actually received R A = Angot's theoretical amounts of radiation which would reach the earth's surface in the absence of an atmosphere. These values are given by List (1951) n = actual duration of sunlight N = theoretical maximum duration of sunlight.