The solar irradiance below 120 nm was first predicted by astronomers. Since its accurate measurement required the solution of a variety of technological problems, little is known about the variability before 1972, though for more than two decades data have been collected. Therefore, on a quantitativ
Solar irradiance between 120 and 400nm and its variations
β Scribed by Paul C. Simon
- Publisher
- Springer
- Year
- 1981
- Tongue
- English
- Weight
- 937 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0038-0938
No coin nor oath required. For personal study only.
β¦ Synopsis
The solar ultraviolet irradiance measurements in the 120-400 nm wavelength range are reviewed and compared showing still important discrepancies between the irradiance values deduced from the most recent observations.
The possible variations of the solar ultraviolet irradiances with the 27-day rotation period of the Sun and with the 11-year activity cycle are presented and discussed on the basis of the available irradiation fluxes obtained during the rising phase of solar cycle 21.
The spectral features of both kinds of variation are clearly related to the solar atmospheric layer from which the corresponding radiation is emitted, * Proceedings of the 14th ESLAB Symposium on Physics of Solar Variations, 16-
π SIMILAR VOLUMES
We have established a statistical relation between the facular contribution to the solar irradiance and the intensity of the associated calcium plage. For the solar irradiance data the ACRIM measurements were used. The quiet-Sun level of the irradiance was determined as a function of the time for th