Solar Irradiance Modelling
Journal: International Journal of Science and Research (IJSR) (Vol.3, No. 8)Publication Date: 2014-08-05
Authors : V S Rohini;
Page : 820-828
Keywords : Sun; CTSI; SSA; Average solar magnetic field B; Delay;
Abstract
CTSI is the solar energy received on outer layer of earth (at 1AU distance from sun) in form of heat flux ( in various wavelength bands) measured in w/m^2. SSA is the area of vissible sunspot on photosphere of sun. B is the daily averged solar global magnetic field. The CTSI& SSA shows delay9 with respect to each other.27day running averaged values of CTSI, SSA, B for delayed events are suitably combined in solar irradiance modelling. Using solar data for cycles 21, 22, 23 about 6 modelling equations are developed for solar irradiance. The modelled equations very well predict solar irradiance (RAWCTSI) within an error limit of +/- 0.12 w/m^2.
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