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| Titel |
A Fabry–Perot interferometer-based camera for two-dimensional mapping of SO2 distributions |
| VerfasserIn |
J. Kuhn, N. Bobrowski, P. Lübcke, L. Vogel, U. Platt |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 7, no. 11 ; Nr. 7, no. 11 (2014-11-10), S.3705-3715 |
| Datensatznummer |
250115945
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| Publikation (Nr.) |
 copernicus.org/amt-7-3705-2014.pdf |
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| Zusammenfassung |
| We examine a new
imaging method for the remote sensing of volcanic gases, which relies on the
regularly spaced narrow-band absorption structures in the UV–VIS of many
molecules. A Fabry–Perot interferometer (FPI) is used to compare the
scattered sunlight radiance at wavelengths corresponding to absorption bands
with the radiance at wavelengths in between the bands, thereby identifying
and quantifying the gas. In this first theoretical study, we present sample
calculations for the detection of sulfur dioxide (SO2). Optimum values for
the FPI setup parameters are proposed. Furthermore, the performance of the
FPI method is compared to SO2 cameras. We show that camera systems using
an FPI are far less influenced by changes in atmospheric radiative transfer
(e.g., due to aerosol) and have a great potential as a future technique for
examining emissions of SO2 (or other gases) from volcanic sources and
other point sources. |
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