A review of the Nimbus-7 ERB solar dataset |
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| Authors: | H L Kyle D V Hoyt J R Hickey |
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| Institution: | (1) NASA/Goddard Space Flight Center, 20771 Greenbelt, MD;(2) Research and Data Systems Corporation, 20770 Greenbelt, MD;(3) The Eppley Laboratory, Inc., 02840 Newport, RI |
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| Abstract: | Fourteen years (November 16, 1978 through January 24, 1993) of Nimbus-7 total solar irradiance measurements have been made. The measured mean annual solar energy just outside of the Earth's atmosphere was about 0.1% (1.4 W/m2) higher in the peak years of 1979 (cycle 21) and 1991 (cycle 22) than in the quiet Sun years of 1985/86. Comparison with shorter, independent solar measurement sets and with empirical models qualitatively confirms the Nimbus-7 results. But these comparisons also raise questions of detail for future studies: in which years did the peaks actually occur and just how accurate are the models and the measurements? |
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