Details
| Originalsprache | Deutsch |
|---|---|
| Seiten (von - bis) | 189-196 |
| Seitenumfang | 8 |
| Fachzeitschrift | Journal of Photochemistry and Photobiology B: Biology |
| Jahrgang | 32 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - Feb. 1996 |
Abstract
Schlagwörter
- Biofilm, Biological UV-dosimetry, Solar radiation, Biological effectiveness, UV-B Radiation, Ozone depletion, Radiation amplification factor
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in: Journal of Photochemistry and Photobiology B: Biology, Jahrgang 32, Nr. 3, 02.1996, S. 189-196.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Biological dosimetry of solar radiation for different simulated ozone column thicknesses
AU - Horneck, G.
AU - Rettberg, P.
AU - Rabbow, E.
AU - Strauch, W.
AU - Seckmeyer, G.
AU - Facius, R.
AU - Reitz, G.
AU - Strauch, K.
AU - Schott, J.-U.
PY - 1996/2
Y1 - 1996/2
N2 - During the Spacelab mission D-2, in the experiment RD-UVRAD, precalibrated biofilms consisting of dry monolayers of immobilised spores of Bacillus subtilis (strain Marburg) were exposed, for defined intervals, to extraterrestrial solar radiation filtered through an optical filtering system, to simulate different ozone column thicknesses. After the mission, the biofilms were processed and optical densities indicative of any biological activity were determined for each exposure condition by image analysis. For the different simulated ozone column thicknesses, biologically effective irradiances were experimentally determined from the biofilm data and compared with calculated data using a radiative transfer model and the known biofilm action spectrum. The data show a strong increase in biologically effective solar UV irradiance with decreasing (simulated) ozone concentrations. The full spectrum of extraterrestrial solar radiation leads to an increment of the biologically effective irradiance by nearly three orders of magnitude compared with the solar spectrum at the surface of the Earth for average total ozone columns.
AB - During the Spacelab mission D-2, in the experiment RD-UVRAD, precalibrated biofilms consisting of dry monolayers of immobilised spores of Bacillus subtilis (strain Marburg) were exposed, for defined intervals, to extraterrestrial solar radiation filtered through an optical filtering system, to simulate different ozone column thicknesses. After the mission, the biofilms were processed and optical densities indicative of any biological activity were determined for each exposure condition by image analysis. For the different simulated ozone column thicknesses, biologically effective irradiances were experimentally determined from the biofilm data and compared with calculated data using a radiative transfer model and the known biofilm action spectrum. The data show a strong increase in biologically effective solar UV irradiance with decreasing (simulated) ozone concentrations. The full spectrum of extraterrestrial solar radiation leads to an increment of the biologically effective irradiance by nearly three orders of magnitude compared with the solar spectrum at the surface of the Earth for average total ozone columns.
KW - Biofilm
KW - Biological UV-dosimetry
KW - Solar radiation
KW - Biological effectiveness
KW - UV-B Radiation
KW - Ozone depletion
KW - Radiation amplification factor
U2 - 10.1016/1011-1344(95)07219-5
DO - 10.1016/1011-1344(95)07219-5
M3 - Artikel
VL - 32
SP - 189
EP - 196
JO - Journal of Photochemistry and Photobiology B: Biology
JF - Journal of Photochemistry and Photobiology B: Biology
SN - 1011-1344
IS - 3
ER -