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The Solar Irradiance Spectrum at Solar Activity Minimum Between Solar Cycles 23 and 24 |
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| Authors: | G Thuillier D Bolsée G Schmidtke T Foujols B Nikutowski A I Shapiro R Brunner M Weber C Erhardt M Hersé D Gillotay W Peetermans W Decuyper N Pereira M Haberreiter H Mandel W Schmutz |
| Institution: | 1. LATMOS-CNRS, 11 Blvd d’Alembert, 78280, Guyancourt, France 2. Institut d’Aéronomie Spatiale de Belgique, 3 avenue Circulaire, 1180, Brussels, Belgium 3. Fraunhofer Institute for Physical Measuring Technique, Heidenhofstrasse 8, 79110, Freiburg, Germany 4. Institute for Meteorology, University of Leipzig, Stephanstr. 3, 04103, Leipzig, Germany 5. Physikalisch-Meteorologisches Observatorium Davos, World Radiation Center, 7260, Davos Dorf, Switzerland 6. Institute of Environmental Physics (IUP), University of Bremen FB1, Otto-Hahn-Allee 1, 28359, Bremen, Germany 7. Landessternwarte, K?nigstuhl, Heidelberg, Germany |
| Abstract: | On 7 February 2008, the SOLAR payload was placed onboard the International Space Station. It is composed of three instruments, two spectrometers and a radiometer. The two spectrometers allow us to cover the 16?–?2900 nm spectral range. In this article, we first briefly present the instrumentation, its calibration and its performance in orbit. Second, the solar spectrum measured during the transition between Solar Cycles 23 to 24 at the time of the minimum is shown and compared with other data sets. Its accuracy is estimated as a function of wavelength and the solar atmosphere brightness-temperature is calculated and compared with those derived from two theoretical models. |
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