Gast ::
| Hauptseite > Publikationsdatenbank > UV/VIS-absorption cross sections and quantum yields for use in photochemistry and atmospheric modeling part 1: Inorganic substances |
| Hauptseite > Publikationsdatenbank > UV/VIS-absorption cross sections and quantum yields for use in photochemistry and atmospheric modeling part 1: Inorganic substances |
| Book/Report | FZJ-2019-01796 |
; ; ; ;
1997
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag
Jülich
Please use a persistent id in citations: http://hdl.handle.net/2128/21802
Report No.: Juel-3340
Abstract: For theoretical considerations and for numerical determination of photo lysis rates, knowledge of absorption spectra is essential. This is especially true for chemicalmodels of the atmosphere, as all chemical reactions are driven directly or indirectly by the sun's radiation. Together with the wavelength dependent quantum yields ofthe respective photolysis processes, the absorption spectra govern the photodissociation frequencies. Therefore, these quantities are of highest interest to allatmospheric chemists. Despite the importance of photodissociation processes, very few collections of absorption spectra in the visible and ultraviolet wavelength region are available. Moreover, most of these collections do not give the spectra in their original form, but tabulate selected data points with a rather poor resolution. The collection of gas phase absorption cross sections presented here originates trom the data compiled at the Max Planck Institute for Chemistry used for kinetic purposes and from the collecion used in the authors' atmospheric chemistry models at the Research Center Jülich. It is the aim to present all spectra as they were originally published, regardess of whether errors are obvious or not. Only in the case of typing errors or if corrections were published later, the corrected values were included in this collection. All spectra are presented in the same format to simplify comparison and incorporaion of the spectra into chemical models of the atmosphere. The data presented here should be considered as a preliminary version of a data base of spectra and quantum yields of atmospheric relevant species. It is planed to provide an updated version in the near future, including new entries and possible corrections of the existing files. It is not our intention to give a recommendation at the moment, this may be the subject of aseparate project. There are two volumes : the first treats the spectra of inorganic species, the second the organic compounds. A third volume with liquid phase spectra is planned to be published later. The absorption spectra and the wavelength dependent quantum yields are both temperature dependent. The temperature dependencies in the atmospheric relevant temperature range fram below 200 K to about 300 K have been included, where [...]
|
The record appears in these collections: |
PDF
PDF (PDFA)