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| Titel |
Level 0 to 1 processing of the imaging Fourier transform spectrometer GLORIA: generation of radiometrically and spectrally calibrated spectra |
| VerfasserIn |
A. Kleinert, F. Friedl-Vallon, T. Guggenmoser, M. Höpfner, T. Neubert, R. Ribalda, M. K. Sha, J. Ungermann, J. Blank, A. Ebersoldt, E. Kretschmer, T. Latzko, H. Oelhaf, F. Olschewski, P. Preusse |
| 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. 12 ; Nr. 7, no. 12 (2014-12-05), S.4167-4184 |
| Datensatznummer |
250115978
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| Publikation (Nr.) |
 copernicus.org/amt-7-4167-2014.pdf |
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| Zusammenfassung |
The Gimballed Limb Observer for Radiance Imaging of the Atmosphere
(GLORIA) is an imaging Fourier transform spectrometer that is
capable of operating on various high-altitude research aircraft. It
measures the atmospheric emission in the thermal infrared spectral
region in limb and nadir geometry. GLORIA consists of a classical
Michelson interferometer combined with an infrared camera. The
infrared detector has a usable area of 128 × 128 pixels,
measuring up to 16 384 interferograms simultaneously.
Imaging Fourier transform spectrometers impose a number of
challenges with respect to instrument calibration and algorithm
development. The optical setup with extremely high
optical throughput requires the development of new methods and
algorithms for spectral and radiometric calibration. Due to the vast
amount of data there is a high demand for scientifically intelligent
optimisation of the data processing.
This paper outlines the characterisation and processing steps
required for the generation of radiometrically and spectrally
calibrated spectra. Methods for performance optimisation of the
processing algorithm are presented. The performance of the data
processing and the quality of the calibrated spectra are
demonstrated for measurements collected during the first deployments
of GLORIA on aircraft. |
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