Solar radiation and solar differential r
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H. WΓΆhl
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Article
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1988
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Springer
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English
β 196 KB
Areas of sunspots and their positions taken from the Greenwich Photoheliographic Results (1874-1976) and typical intensities of the umbrae and penumbrae are used to calculate daily values of the solar flux at a wavelength of about 500 nm. Using overlapping time series of 512 days each solar rotation