Measurement of the light intensity in Ihc zenith, obtained during the anqular solar eclipse of April 29, 1976 are given in three wavelength bands {.centcrcd on A's 4800. 5400 and 6100 A). The observed diflercnces in the three wavelength regions have been examined and compared wilh calculations takin
On the variation of the direct solar radiation during the annular solar eclipse of April 29, 1976
β Scribed by J. Deliyannis; D. Papathanasoglou; M. Stathopoulou-Tsoga
- Publisher
- Springer
- Year
- 1979
- Tongue
- English
- Weight
- 205 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0038-0938
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β¦ Synopsis
Measurements of the direct solar radiation during the annular solar eclipse of April 29, 1976 are given in three wavelength bands (centered on 800, 680, and 450 nm). A decrease of the solar radiation after the last contact was observed, especially in the red and infrared. This is considered in connection with the results of other direct light and zenith light measurements.
π SIMILAR VOLUMES
Short-term variations ot the last solar activity cycle were studied by the flare and coronal indices using Gleissberg method. Systematic short-term variations are found from their course during the 21st solar activity cycle. Comparison of their autocorrelograms constructed by the new set of data obt