Licht-im-Terrarium: Literaturdatenbank
Licht-im-Terrarium: Literaturdatenbank |
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Blumthaler, M., Gröbner, J., Huber, M., & Ambach, W. (1996). Measuring spectral and spatial variations of uva and uvb sky radiance. Geophysical Research Letters, 23(5), 547–550. Added by: Sarina (2010-03-27 20:55:06) |
| Resource type: Journal Article BibTeX citation key: Blumthaler1996 View all bibliographic details  |
Categories: Englisch = English Keywords: Sonne = Sun, Spektrum = Spectrum, Ultraviolett = Ultraviolet Creators: Ambach, Blumthaler, Gröbner, Huber Collection: Geophysical Research Letters |
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| Abstract |
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Spectral sky radiance measurements have been obtained with a double monochromator using a 1.5° field of view under varying atmospheric conditions at selected sites in Europe. Spatial variations of the intensity of the sky radiance up to a factor of 10 are observed in the UVA, which decrease to a factor of 2 in the UVB. A distinct minimum of the sky radiance is observed, the location depends on the solar zenith angle but not on wavelength. It is located at scattering angles between 90° and 75° for solar zenith angles between 80° and 26°. A comparison between measurements of the sky radiance and radiative transfer calculations with an aerosol free atmosphere shows a strong dependence of UVB sky radiance on aerosol particles in contrast to UVA sky radiance and possibly a dependence on tropospheric ozone as well.
Added by: Sarina |